It is false that bulk flow is always an active and atp-expensive process and it is evident by the presence of a heartbeat in order for bulk flow to occur in animals.
Active transport is the transfer of dissolved molecules from a location of lower concentration to a region of higher concentration across the cell membrane. The particles use expensive energy released during breathing to move against the gradient of concentration. Organic substances release energy through respiration, a chemical mechanism that is independent of a heartbeat. Exergonic reactions convert the molecules into new ones. Energy is released via the breakdown of adenosine triphosphate (ATP) into adenosine diphosphate (ADP) and phosphoric acid (Pi).
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Skeletal, smooth, and cardiac muscles fall into what category of organization?
cellular
tissue
organ system
organ
Skeletal, smooth, and cardiac muscles fall into organ system.
Organ System- The organ system is the collection of organs that cooperate to carry out a certain task in the body of an organism. Organs, that are self-contained collections of tissues like the heart that cooperate to carry out a single function, are present in the majority of animals and plants. The circulatory system, musculoskeletal system, and digestive system are a few instances of organ systems and their functions.
Tissue- Tissue is a collection of cells with a common structure and function that work as a single unit. The body's tissues give it shape and aid in energy storage and heat retention.
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which order can be characterized by piercing sucking mouthparts and hemeelytra? group of answer choices hemiptera (true bugs) odonata (dragonflies) blattodea (cockroaches) mantodea (praying mantis)
Hemiptera (true bugs) can be characterized by piercing sucking mouthparts and hemelytra.
Hemiptera is the order of the class of insects. The examples of Hemiptera include cicadas, aphids, planthoppers, etc. Their mouth parts are transformed to an elongated sucking beak like structure. The parts modified are mandibles and maxillae. They undergo the process of incomplete metamorphosis.
Hemelytra are a type of forewing where the wings have a thickened base with leather-like texture and a membranous apex. They are most prominently found in insects and bugs. They are more specifically found in the suborder Heteroptera of the the order Hemiptera.
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A phospholipid has two parts - a phosphate head which is ____and fatty acid tails which are _____
Answer:
1. hydrophilic/"water-loving," 2. hydrophobic/"water-hating"
Explanation:
regulation of the cell cycle is dependent on cyclins and cyclin-dependent kinases (cdks). the key factor that allows a cell to progress beyond the restriction point in g1 is the absence of cyclin.
Explanation: just being there means little if they can't pass through the checkpoint, their action is more important than their presence
A phospholipid molecule is made up of all of the following parts, except _____.
two hydrophobic fatty acid chains
one hydrophobic head
one glycerol molecule
one negatively charged polar phosphate group
A phospholipid molecule is made up of all of the following parts, except one hydrophobic head.
There are two parts to phospholipids: a head as well as a tail. The phosphate group is located in the "head" of a molecule, which is hydrophilic and will dissolve in the water. Two hydrophobic fatty acids that make up the molecule's "tail" are what prevent it from dissolving in water.
Phospholipid Molecule- Phospholipids is compound lipids made of alcohol, fatty acids, nitrogen base, and phosphoric acids. The cell membrane is mostly made up of these complex lipids, which also give the membranes their fluidity.
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Quinn has a solution of acetic acid and water in one beaker. he carefully makes a second solution of acetic acid and water in a second beaker. these two solutions will have the same properties only if
The two solutions will have the same properties only if the ratio of amount of acetic acid and water is same.
Quinn has a solution of acetic acid and water in one beaker. Also second solution of acetic acid and water in a second beaker is made by Quinn. Acetic acid is a weak acid which reacts with the water in a reversible fashion to form hydronium and acetate ions. An exchange of proton takes place during this chemical reaction.
The two solutions will have the same properties only if the concentration of resulting solutions is same i.e., ratio of amount of acetic acid and water is same.
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During chemiosmosis, hydrogen ions accumulate in the ______ of the mitochondrion to create a large electrochemical gradient for aerobic cellular respiration.
During chemiosmosis, hydrogen ions accumulate in the intermembrane space of the mitochondrion to create a large electrochemical gradient for aerobic cellular respiration.
The concentration of hydrogen ions in the intermembrane space is higher than in the matrix as a result of the pumping of hydrogen ions through the inner membrane. As a result of this chemiosmotic gradient, the ions move back over the membrane into the matrix, where their concentration is lower, as a result of this chemiosmotic gradient.
The intermembrane gap is pumped with protons (H+) during this process. Protons flow through ATP synthetase in the inner membrane as a result of the gradient formed by the high proton concentration in the intermembrane gap and the low proton concentration in the matrix.
During cellular respiration, ATP is created via a process called chemiosmosis. Protons migrate through certain channels during chemiosmosis from the inner to the outer compartment of mitochondrial membranes.
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The amount of a radioactive element remaining in an object is measured. based on the known half-life of the element, the amount remaining can be used to calculate how old the object is. question 10 options: true false
True, The amount of a radioactive element remaining in an object is measured based on the known half-life of the element, and the amount remaining can be used to calculate how old the object is.
One specific attribute all radioactive element have is that they have the capacity of reducing themselves by half of the actual amount in a certain period of time.
Assuming an element "K" has a half life of 3 years. This means that this element "K" will reduce its quantity by half after every three years.
In a case whereby it is specified that some "J" grams of element "K" is found and the age of the substance in which this element "K" is found is to be determined. We use:
N = N₀ * e⁻αt
Where:
N is the inital mass or atomic mass of K
N₀ is the present mass of K
t is the age of substance
α is the decay constant i.e half life
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Which characteristic best distinguishes these cells as either prokaryotic or eukaryotic
Characteristic best distinguishes from prokaryotic to eukaryotic is that eukaryotic cells have a definite nucleus comprising the cell's genetic material, while prokaryotic cells don't have a nucleus and have free floating genetic material.
Some other differences includes Eukaryotes have membrane bound organelles while prokaryotes do not have membrane bound organelle. Prokaryotes have comparably less DNA then eukaryotes cells. Eukaryotic chromosomes are linear while prokaryotic chromosomes are circular. Prokaryotic cells do not have a true nucleus or membrane-bound organelles, whereas eukaryotic cells contain both a nucleus and organelles enclosed by membranes. All plant cells and animal cells are eukaryotic in nature .
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In the alignment example, there are two places where the sequences differ. If there are a total of 100 bases in the sequence, what would be the percent identity between these two sequences?.
The percent identity between these two sequences is 98 %
Percent similarity" is the sum of two protein sequences' identical and comparable matches. However, studying the sequence identity shared by two protein sequences rather than the similarity is often more informative. There are several definitions of how connected (similar) two amino acid residues are to one another. Because there is no uniform definition of percent sequence identity, the pid function can be computed using any of the following functions:
PID1:
100 * (identical positions) / (aligned positions + internal gap positions)
PID2:
100 * (identical positions) / (aligned positions)
PID3:
100 * (identical positions) / (length shorter sequence)
PID4:
100 * (identical positions) / (average length of the two sequences)
Therefore pid2: 100 * (98/100)
=100 * 0.98
=98%
Therefore, the sequences can be said to be 98% identical.
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Does the floor surface affect her for a ball can roll? turn to rap set up one ramp is made of wood and want to smooth. the other ramp is covered in grass a baseball is lego not push from the top of the ramp the rams are both the same height and the same way after letting go of the ball the distance between the ramp and where the bus stop is measured the length is measured in centimeters using a meter stick. what are two controls?
The purpose of this experiment is to see how different ramp surface types affect distance. The least amount of friction will be created by the smoothest surface.
Galileo Galileo demonstrated that objects fall at the same rate regardless of their weight. Newton's first law of motion states that unless acted upon by a net external force, an object at rest will remain at rest and an object in motion will continue to move at a constant speed. Gravity and friction are the two outside factors at work in our experiment. The toy car is being pulled downward by Earth's gravity as it rolls, creating friction and a force when two materials slide against one another.
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expression, purification and testing of lanthanide-dependent enzymes in methylorubrum extorquens am1. methods enzymol. 650:97-118. doi:10.1016/bs.mie.2021.02.001.
A systematic method for Methylorubrum extorquens AM1, a model methylotrophic bacteria, to grow in order to express enzyme purification and testing lanthanide-dependent enzymes.
Growth is optimized for both scaled-up batch cultivation for enzyme purification, enabling in vitro enzymatic research, and high-throughput phenotypic characterization, aiding in vivo studies. It has been established that both methods are crucial for comprehending the structure and activity of these enzymes. In order to identify lanthanide dependence, expression systems have been developed to produce enzymes both with and without lanthanide metals. The procedure outlined here is anticipated to hasten the identification of new lanthanide-dependent enzymes and our comprehension of the function of these metals in the larger biological system.
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A student ws trying to determine how many ice cubes would be needed to keep a glass containing 250 mL of water un 15 degrees celcius for a minimum of 30 minutes
The students perform multiple trials of the same experiment because the surrounding temperature is not uniform every day and also to get more accurate values.
The temperature of the environment.The preliminary temperature of the glass.The number of ice cubes introduced to the water inside the glass.As a way to preserve attention to the converting environmental temperatures (that's a variable in the test), the test needed to be performed each day to get accurate results preserving attention to all the factors.
An experiment is defined as a method by which one or more unbiased variables are deliberately manipulated to confirm or accurate the postulates of the hypotheses that have been created. Its aim is to build up reliable statistics.
Medical experimentation collects the one-of-a-kind strategies/approaches used by researchers to check their theories and assumptions concerning their items of having a look at, through the repetition of certain phenomena located in nature, within the managed surroundings of the laboratory.
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Disclaimer:- your question is incomplete, please see below for complete question.
A student was trying to determine how many ice cubes would be needed to keep a glass containing 250 mL of water under 15°C for a minimum of 30 minutes. The student placed
varying numbers of ice cubes in different cups and recorded the time it took for the water to warm up to 15°C. The student then performed the same experiment each day for a
week. Why did the student perform multiple trials of the same experiment?
I need this ASAP please
The amount of food eaten by each organism is not equal to the total amount used by them as a result of heat lost through respiration etc.
What is Respiration?This is referred to as the process in which an organism obtain energy which is usually in the form of ATP by the inhalation of oxygen and the exhalation of carbondioxide.
The amount of food eaten by each organism is not equal to the total amount used by them because activities such as respiration, excretion etc are responsible for the difference. In the trophic level, only 10 percent of the amount of energy is passed from one organism to another.
Zebra = 51698-26712-6602-8438 = 9946.
Hyena = 4682-544-733-814 = 2591.
The amount of food(energy) eaten is different as denoted in the calculation due to some being lost through waste, respiration, heat loss etc.
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the body's circulating fluids are: group of answer choicesthe enzymes and the plasmathe blood and nutrientsthe lymph and fat cellsthe plasma and fat cellsthe blood and lymph
The body's circulating fluids are blood and lymph.
In the human body, there are two types of fluid systems moving all across the body. These fluids are named as blood and lymph.
Blood is a red-colored fluid and its major function is to transport oxygenated blood to the cells and to remove deoxygenated blood. Blood is a part of the circulatory system.
The lymph is a white-colored fluid and the major function of the lymphatic system is to maintain the fluid levels in the body. All the extra leaking cells are removed by the lymphatic system. Lymph s a part of the lymphatic system.
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1. Describe how changing the rotors' power and speed allow the drone to move
left or right.
Rolling motion is defined as movement of a drone about its longitudinal axis.The drone will move to the left if two of the right propellers spin quickly.
The drone will travel right if its two left propellers are spinning quickly.
What is drone?
An unmanned aircraft is a drone. Drones are more commonly referred to as unmanned aerial vehicles (UAVs) or unmanned aircraft systems. Essentially, a drone is a flying robot that may be remotely controlled or can fly autonomously utilizing flight plans that are managed by software, onboard sensors, and a global positioning system (GPS).
Rolling motion is defined as movement of a drone about its longitudinal axis. The drone will move to the left if two of the right propellers spin quickly. The drone will travel right if its two left propellers are spinning quickly.
The motion of the drone's head rotating around its vertical axis (to the left or right) is referred to as yawning. The drone will rotate counter clockwise if two right diagonal propellers are moving quickly. The drone will revolve counter clockwise if two of its propellers are running in a left diagonal at high speed.
Hence the answer is the drone will move to the left if two of the right propellers spin quickly. The drone will travel right if its two left propellers are spinning quickly.
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What is an example of a molecule that adds fiber to your diet?
Answer:
There are many but some are brown rice, whole wheat products, almonds, and walnuts.
Explanation:
Hope this helps!
Please i'll give brainliest, answer in a short pargraph please,Does ATP release energy when it is beingformed (dehydration synthesis) or brokendown (hydrolysis)?
ATP release energy when it is broken down by hydrolysis.
What is hydrolysis?Hydrolysis is the chemical process of decomposition involving the splitting of a bond and the addition of the hydrogen cation and the hydroxide anion of water.
ATP (adenosine triphosphate) is a biological molecule that stores and releases energy in living cells. ATP is made up of three components namely;
Three phosphate groupAdenine basefive-carbon sugarHowever, energy is released when phosphate bond is broken to release phosphate groups and produce ADP. This process occurs via hydrolysis.
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The heart pumps oxygen-rich blood ______________ and oxygen-poor blood ________________.
*
to the body…. to the lungs
to the lungs… to the body
to the body… to the heart
to the heart… to the body
Answer:The heart pumps oxygen-rich blood (from the lungs to the body) and oxygen-poor blood (from the body to the lungs).
a drug which has high affinity for nicotinic receptors on neurons but not on skeletal muscle fibers and is a pharmacological antagonist not an agonist. phm 350 quizlet
Curare (tubocurarine, TUBARINE) is a drug that has a high affinity for nicotinic receptors on skeletal muscle fibers but not neurons is an agonist and causes muscle relaxation.
Cholinergic receptors called nicotinic acetylcholine receptors (nAChRs) are found in the plasma membranes of certain neurons and on the postsynaptic side of the neuromuscular junction. Because they are ionotropic receptors, nAChRs do not depend on second messengers and are connected directly to ion channels.
One non-depolarizing muscle relaxant is Curare, which inhibits the neuromuscular junction's nicotinic acetylcholine receptor (nAChR), one of the two types of acetylcholine (ACh) receptors. By attaching to the acetylcholine receptor (AChR) at the neuromuscular junction, the drug curare blocks the activation of skeletal muscles by nerve impulses (Bowman, 2006).
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What type of consumer is a fruit fly?
Answer: primary
Explanation: herbivores or autotrophs feed on only plants to obtain energy. For instance, cows and goats make good examples of these primary consumers. Flies are considered primary consumers because they mainly eat primary producers
PLEASEEEEE Draw the generic structure of the basic building block of nucleic acids and label its threekey parts.
The main building blocks that could be used to construct a nucleic acid as shown in the diagram are a nitrogenous base, a sugar molecule and the phosphate group.
What is the nucleic acid?The term nucleic acid have to do with the substance that is composed of the nitrogenous base and the phosphate group. The nitrogenous base is a cyclic structure that has nitrogen as one of the atoms that have been attached to it. This nitrogen atom is responsible for the basicity of the substance because of the presence of lone pair on the nitrogen atom.
Now we also have the phosphate group which attaches to the nitrogenous base in a remarkable position which now allows the compound to function as a nucleic acid.
We could now agree that the basic building blocks for the nucleic acid are the phosphate moiety as well as the nitrogenous base. The nucleic acid plays an important role in the sense that it is used to code the genetic material that is required for reproduction in the body.
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how does ethylene gas affect fruit? a. stabilizes the color. b. makes the fruit taste bitter. c. speeds the ripening process. d. increases shelf life.
Answer:
Explanation:Under neutral conditions, chlorophyll is a pigment that's insoluble in water and gives food a pleasant green color. However, when exposed to heat and acidic conditions, chlorophyll becomes a compound known as pheophytin, which gives food a dull olive brown color.
You cut your finger and your are bleeding profusely. It appears to be only in the epidermis. Is this true or false? Name anatomical parts to either defend or justify your answer.
If you cut your finger and you are bleeding profusely. It is FALSE to state that it appears to be only in the epidermis.
What is the explanation for the above answer?
Blood vessels do not exist in the epidermis; they are found in the dermis, the innermost layer of our skin. If you cut yourself and bleed, it signifies you've ripped through the epidermis and exposed the dermis.
It is to be noted that the dermis is a fibrous structure made up of collagen, elastic tissue, and other extracellular components such as vasculature, nerve endings, hair follicles, and glands. The dermis's purpose is to help and shield the skin and deeper layers, as well as to aid in thermoregulation and feeling.
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How does the muscular system interact with the digestive system?
A.
Food is moved through the small intestine.
B.
Oxygen is moved into and out of the lungs.
C.
Saliva production increases at the sight or smell of food.
D.
Nutrients are absorbed and transported to other body parts.
Answer:
food is moved through the small intestine
in addition to being produced in the pancreas, lipase is also produced in the stomach. is the structure of pancreatic lipase the same as gastric (produced in the stomach) lipase? justify your reasoning.
No, the structure of pancreatic lipase is not the same as gastric (produced in the stomach) lipase.
In the field of science, we can describe lipases as enzymes that are actively involved in the breaking of fats.
There are three sites in the human body where lipase enzyme is produced. These sites are serous glands, pancreas and stomach. However, the lipase produced by each of these glands or organs is different because each lipase has to function in a different environment. Hence, they are produced in order of the place where they are to function.
The lipase in the pancreas is in the form of triglyceride. The gastric lipase is produced by the chief cells.
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100 point question and possibly brainliest ill pick my favorite
What is one advantage that PET scans have over X-rays and MRIs?
a-PET scans show how the body is functioning in real time.
b-There are no risks associated with PET scans.
c-Everything that shows up on a PET scan is cancer.
d-PET scans can detect all types of cancer.
Answer:
there are no risks associated with PET scans
Explanation:
While PET scans do use radiation, they don't use as much like X-rays or CT scans do, reducing the risk and allowing you to have multiple PET scans within a short amount of time without danger.
one major difference in the skeleton of a typical ape and an old world monkey is that … a. old world monkeys have more flexible shoulder joints than apes. b. apes have longer thumbs and shorter fingers than old world monkeys. c. except for humans, apes have longer arms than legs. d. ape shoulder blades (scapulae) are on the sides of the ribcage. e. old world monkeys have a more flexible lumbar spine than apes.
One major difference in the skeleton of a typical ape and an old world monkey is that: (c) except for humans, apes have longer arms than legs.
Skeleton is the framework of the body made of bones that provides a definite shape and posture to the body. The skeleton also serves to protect the vital organs of the body from any injury. In humans, the skeleton is composed of 206 bones in adults.
Apes are the mammals. They belong to the order primates that are believed to be the nearest ancestors of the humans today. Apes do not exhibit tails in their body due to some mutation.
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8. Slow twitch fibres (Type1) are efficient at using oxygen to release
energy. They are good at using oxygen because:
Answer:
wut
Explanation:
In the geologic past, volcanic eruptions have had an impact on the availability of resources. How can volcanic eruptions impact the availability of resources?.
Volcanic eruptions can deliver such highlights as surges, pyroclastic streams, and mudflows that can cause a major impact on resources.
The gasses and clean particles tossed into the environment amid volcanic eruptions have impacts on the climate. Most of the particles retched from volcanoes cool the planet by shading approaching sun-powered radiation.
The cooling impact can be final for months to a long time depending on the characteristics of the ejection.
Volcanoes have hot, perilous gasses, fiery remains of magma, and shakes that are effectively dangerous. Individuals have kicked the bucket from volcanic impacts.
Volcanic eruptions can result in extra dangers to wellbeing, such as surges, mudslides, control blackouts, drinking water defilement, and rapidly spreading fires.
Further impacts are the disintegration of water quality, fewer periods of rain, trim harms, and the annihilation of vegetation.
Amid volcanic emissions and their prompt consequence, expanded respiratory framework horribleness has been watching as well as mortality among those influenced by volcanic emissions.
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