Isometric contraction involves holding muscles still in a particular position.
An isometric contraction occurs when tension is applied because the length of the muscle is substantially unaltered. For example, when doing a biceps curl while holding the weight fixed rather than actively raising or lowering it, isometric contraction takes place.
Muscles are rarely harmed during isometric contractions, despite the fact that the forces produced could be larger than those during concentric contractions.
Although isometric circumstances can be seen over the entire heart (for instance, during isovolumic contraction), isotonic conditions are uncommon because complete unloading is not achievable because afterload is continually changing during the ejection period.
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Factors that affect prenatal development
Genetic (a dominant trait)
Factor:
Genetic (a recessive trait)
Factor:
Genetic (a genetic or chromosomal disorder)
Factor:
Environmental (mother's physical health)
Factor:
Environmental (mother's emotional health)
Factor:
Environmental (something in the environment
that the mother lives in)
Factor:
How do these factors have a positive or negative affect?
All the factors mentioned like environment factors, mother's physical and emotional health all can have either positive or negative effect.
What is factor and how come these factors have an effect on mother's health?Factors are in pair present on chromosomes , have studied in genetics. There are two factors for each trait.The statement that factors are present in pair have a significant role and need to be kept in mind vividly.Here comes the health of the mother which can be effected by emotion health, if mother is suffering with emotional challenges then obviously its a negative effect .When mother is living in a hygienic environment and friendly environment that's a positive impact.To know more about Factors visit:
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which organisms share a family
Answer:Amoeba and Euglena are more closely related to each other than any other pair of organisms as they both belong to the Phylum Protista and show similar characteristics.
Explanation:
What would this level of energy be?
in true experiments, is to dependent variable as is to independent variable. a. measuring; manipulating b. controlling; manipulating c. recording; measuring d. manipulating; measuring
In every true experiment, a researcher modifies an independent variable in order to affect one or more dependent variables.
What is a dependent variable?In an experiment, the effects of changing the independent variable are tracked. Dependent variables are those observed effects. They are frequently the anticipated result of changing the independent variable. The independent variable determines how the dependent variable changes, thus the name. When performing experiments, researchers aim to quantify the link between the dependent and independent variables.
What is the difference between independent and dependent variables?The cause is the independent variable. Its value is unaffected by other study variables.
Effect is the dependent variable. Changes in the independent variable affect its value.
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what happens to the ice over time?
Answer:
it melted ig
Explanation:
describe the most likely effect of lap94 activity on the osmolarity of the cytosol. describe the function of lap94 in maintaining water balance in the mussels living in the atlantic ocean.
The lap94 increases osmolarity. This test determines the concentration of dissolved particles in our blood (osmolality).
This test can aid in the diagnosis of fluid or electrolyte imbalances, such as dehydration. Electrolytes are mineral salts that aid in the movement of nutrients into and waste products out of cells. Osmolarity is a measurement of the number of particles dissolved in a litre of liquid. Fluid homeostasis refers to the process of maintaining constant fluid concentrations in the body. It is also known as fluid balance at times. When osmolality in the blood rises in healthy people, the body secretes antidiuretic hormone (ADH). This hormone stimulates the kidneys' reabsorption of water. As a result, the urine becomes more concentrated. Water reabsorbed dilutes the blood.
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Lipids store twice as much energy as carbohydrates
True or False
varghese, p.m.; tsolaki, a.g.; yasmin, h.; shastri, a.; ferluga, j.; vatish, m.; madan, t.; kishore, u. host-pathogen interaction in covid-19: pathogenesis, potential therapeutics and vaccination strategies. immunobiology 2020, 225, 152008.
Answer:
I don't really know how to answer this it kinda just looks like random words
Explanation:
k
which of the following is not considered a type of industrial microbiology? choose one: a. vaccine and clinical device production b. lithotrophic oxidant production c. industrial solvent and pharmaceutical production d. genetically modified organism production
Industrial microbiology is a subfield of applied microbiology in which microorganisms are used in industrial processes, such as the manufacture of high-value products like drugs, chemicals, fuels, and electricity.
Industrial microbiologists research and solve problems in industrial manufacturing processes. They may investigate microbial growth discovered in a chemical factory's pipes, monitor the impact of industrial waste on the local ecosystem, or supervise the microbial activities used in cheese production to ensure quality. Industrial microorganisms are used to make a variety of products, including food, cosmetics, pharmaceuticals, and building materials. To aid in large-scale production, microorganisms can be genetically modified or engineered.
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what happens when a myosin head releases from actin? multiple choice question. ach binds to troponin. the filament slides back to the resting position. the filament remains in the same place. calcium is transported back into the t-tubules.
The correct option is: The filament remains in the same place.
ADP phosphate is formed when ATP hydrolyzes. This releases energy, allowing the myosin protein to be cocked into this high energy position and sort of attach to the next rung of our actin filament. We're currently in a high-energy state. The phosphate is released in step three.
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the movement of glucose into the cell, against its concentration gradient, can be powered by the co-transport of na into the cell. explain the thermodynamic factors governing this transporter. under what conditions would transport of glucose slow or come to a halt?
The secondary active transporter proteins known as sodium-dependent glucose cotransporters (SGLT) utilize energy from low sodium ion concentration created by the ATPase pump to transport glucose across the membrane in opposition to high glucose concentration. Both glucose and sodium went over the membrane in the same way. As a result, SGLT proteins are referred to as symporters. The transfer of Na+ ions from their high concentration gradient to their low concentration gradient is thermodynamically advantageous since the net entropy in the system remained rising, according to our assessment of the thermodynamic parameters controlling the transport. As long as there is a significant difference in the concentrations of Na+ ions across the membrane, the entropic factor will be sufficient to propel the import of glucose into the cell.
As there are fewer glucose molecules inside the cell, entropy has decreased.
Because glucose requires protein carriers to assist them to move through the cell membrane due to their bigger size and lipid insolubility, decreasing the number of protein carriers will delay or stop the pace at which glucose will transport.
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Which two statements best describes an organ?
A.
Explanation:
the organ level of organization is when two or more tissues work together for a specific function
I'm stuck on a lab report for Biology. Could someone explain to me why people test for macromolecules in labs at school? Also, I can't find any background information on the lab, where we tested for macromolecules in stomach acid. Could anyone help find any information on the background of this lab?
Thanks in advance to anyone that helps! :)
OBJECTIVE: To utilise indicators to check different meals for the content of lipids, carbs, and proteins.
What macromolecules will you be analysing in the laboratory?The presence of simple carbs (glucose, sucrose), complex carbohydrates (starch), and proteins will mostly be tested for. The signs you'll use to search for these macromolecules are listed below.
Understanding macromolecules is crucial to comprehending how nutrients are taken in and used by cells. Carbohydrates, lipids, proteins, and nucleic acids are the four main substances that are referred to as macromolecules, which simply means huge molecules. Each of them is distinct in its structure and purpose.
Proteins play the broadest range of functions of any macromolecule, making them one of the most common organic molecules in biological systems.
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Which type of monomer includes atoms of carbon, hydrogen, oxygen,
nitrogen, and phosphorus?
OA. Nucleotide
OB. Monosaccharide
OC. Fatty acid
OD. Amino acid
Answer: A. Nucleotide
Explanation: The type of monomer that includes atoms of carbon, hydrogen, oxygen, nitrogen, and phosphorus is a nucleotide. A nucleotide is an organic molecule that is composed of a nitrogenous base, a five-carbon sugar (ribose or deoxyribose), and at least one phosphate group. They are the monomers that are used to build nucleic acids such as DNA and RNA. Nucleotides are essential components of the genetic material and are responsible for the storage, transmission, and expression of genetic information.
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Get it? Compare ionic solids and liquids.
Ionic solids and ionic liquids differ on the basis of their various properties like melting points, shapes, volume, etc.
Ionic solids have a definite shape and volume. Additionally, ionic liquids have a high thermal stability, making them more resistant to changes in their physical or chemical composition. Ionic solids also have high melting points than ionic liquids.
In addition to this, they frequently have high electrical conductivity, which makes it easy for electricity to pass through them, and they lack vapour pressure, which makes them less reactive. Additionally, they have low viscosity, which makes them flow smoothly.
From the above explanation, we can conclude that ionic solids and liquids vary in various properties.
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The cytoplasm of a cell is a thick solution consisting of water and dissolved salts and proteins.
A cell is placed in a beaker of distilled water, which is pure water with nothing dissolved in it.
a) Explain the relationship between the fluid inside the cell and the fluid in the beaker. Make sure to include the appropriate terms (isotonic, hypertonic, hypotonic) in your answer.
b) What will eventually happen to the cell in the beaker?
The answers include the following:
The relationship between the fluid inside the cell and the fluid in the beaker is that the cell was placed in a hypotonic solution.The cell in the beaker will undergo what is referred to as cytolysis.What is Hypotonic solution?This is referred to as a type of solution which has a lower solute concentration when compared to another solution. In this scenario, we were told that the cell is a thick solution with salts and protein which means it has a higher concentration.
When the cell is placed in a beaker of hypotonic solution( distilled water) it will swell and expand until it bursts which is referred to as cytolysis.
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Calmodulin binds ______ in smooth muscle cells, resulting in contraction of the tissue.
Calmodulin binds Calcium ions in smooth muscle cells, resulting in contraction of the tissue.
What is Calmodulin?All eukaryotic cells have the calcium-binding protein calmodulin, also known as calcium-modulated protein, in their cytoplasm. It interacts with a large number of other proteins in the cell and performs a wide range of biological tasks as a regulator or effector molecule.
To control activities including muscle contraction, neuron communication, and fertilization, calcium ions quickly send signals. Our body contains more calcium than any other mineral, with phosphorous coming in second. A little amount of calcium, in the form of calcium ions, is also used by our body for more active processes.
Hence, Calcium ions is the correct answer.
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The time span between the growth stage and adult stage of spores is?
A: Is several years
B: Is very short
C: Varies Greatly
Answer:
C varies greatly
Explanation:
Answer:
C
Explanation:
compare the way a bacterium reproduces to the way a skin cell reproduces
Please hurry i will mark you as brainleist!! A hypothesis is a possible answer or explanation to a scientific question based on
A. scientific laws and research that are testable.
B. scientific theories that are testable.
C. prior knowledge or research that is testable.
D. scientific laws and theories that are testable.
In which types of transport can molecules pass through a phospholipid membrane?
Explanation: The simplest mechanism by which molecules can cross the plasma membrane is passive diffusion. During passive diffusion, a molecule simply dissolves in the phospholipid bilayer, diffuses across it, and then dissolves in the aqueous solution at the other side of the membrane.
the initial consequences of oxygenic photosynthesis are: removal of carbon dioxide and replacement of molecular oxygen in the environment. increase of molecular oxygen concentration in the atmosphere over time.
The consequences of oxygenic photosynthesis are to produce carbohydrates, light energy transfers electrons from water (H2O) taken up by plant roots to CO2.
What is oxygenic photosynthesis?Oxygenic photosynthesis is defined as a non-cyclic photosynthetic electron chain in which water serves as the initial electron donor and, as a result, molecular oxygen is liberated as a byproduct.
An oxygenic photosynthesis is defined as the phototrophic process in which light energy is captured and converted to ATP without oxygen production.
Thus, the consequences of oxygenic photosynthesis are to produce carbohydrates, light energy transfers electrons from water (H2O) taken up by plant roots to CO2.
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In a population of giraffes, in a 12-month period, 70 giraffes were born and 45 giraffes died. How did the population change during the 12- month period? (Assume all other factors did not change).
There is increase in the population of giraffes as the number of giraffes born is more than the number of giraffes died. If all other factors remain constant then the only component that affect here will be : births and deaths.
Population density and growth are influenced by a variety of causes, and these factors may cause fluctuations in population size throughout time.
The birth rate (b) and mortality rate are the two primary variables influencing population increase (d). Animals experience starvation and sickness when population density exceeds the carrying capacity of their habitat.
Anything that limits the size of a population and slows or prevents its growth is referred to as a limiting factor. Biological factors including food, mates, and competition with other species for resources are some examples of limiting constraints.
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five-year-old ling is beginning to show signs of being able to plan ahead in a somewhat rational manner. at her age, this development is likely due to: a decrease in myelin sheaths. an increase in dopamine pathways. increased neurotransmitters available in her synaptic gaps. neural networks sprouting in her frontal lobes.
This development is likely due to neural networks sprouting in her frontal lobes.
What is Neural network and frontal lobe ?Deep learning algorithms are based on neural networks, which are often referred to as artificial neural networks (ANNs) or simulated neural networks (SNNs). They mirror the way that organic neurons communicate with one another by taking their name and structure from the human brain.
The frontal lobes are the largest in the human brain and the most frequently damaged area in traumatic brain injury. The management of higher level executive functions as well as voluntary movement and expressive language depend on the frontal lobes.Learn more about Neural network here:
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Which schedule of reinforcement requires the completion of a specified, unvarying number of responses to produce a reinforcer?.
Answer: Fixed-ratio schedules
Explanation:
Fixed-ratio schedules are those in which a response is reinforced only after a specified number of responses. This schedule produces a high, steady rate of responding with only a brief pause after the delivery of the reinforcer. An example of a fixed-ratio schedule would be delivering a food pellet to a rat after it presses a bar five times.
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Glycine can be a ___ which is used to make bigger ___.
A.monomer ..polymers
B. polymer .. monomers
Answer:A
Explanation It is used to make large monomers and polymers.
if i gave you a protein you knew nothing about (not a fluorescent protein) and asked you to predict its function, which do you think would be most helpful to analyze, primary, secondary or tertiary structure?
The amino acid sequence of a protein determines how it will behave biologically, and alterations to the amino acid sequence will affect the protein's 3D structure.
If you're given a protein X whose function is unknown, you can use NMR or X-Ray crystallography to find out its structural information, or you can use computational methods like threading for 3D structure prediction, PSIPRED, the Chou-Fasman Method, or homology modelling (based on finding homologues of the given protein's structure in the PDB and modelling it using a tool like Swiss Modeller). discover physiochemical characteristics such as molecular weight, amino acid composition, PI, etc.,
So briefly, use CD spectroscopy, Edman degradation, NMR, and mass spectrometry to find primary sequences for unknown proteins. Every one of these is for experimental purposes.
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Please answer the question in the photo! (will mark Brainliest if correct)
Option 4 is correct - your kidney controls the water level through nephron tubes whenever you have low amounts of water that have been detected in your blood.
Because of drinking less water in a day, we experienced faintness and weak which led to the condition of dehydration. In this situation, saving a single drop of water becomes crucial for our body to survive.
Here, the Kidney plays the role of hero and controls the water level of the body using the hormone ADH (Antidiuretic hormone) released by the Pituitary gland.In a time of dehydration, the kidney starts absorbing more water into the nephron tubes which resulted in less urine production.After the detection of the low amount of water, these signaled enzymes, pump salts into nephron tubes because of the presence of more salt than usual which need to be balanced out by water.Therefore, Option 4 is correct.
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consuming individual amino acid supplements on an empty stomach boosts the digestibility of proteins consumed at the following meal. consuming individual amino acid supplements on an empty stomach boosts the digestibility of proteins consumed at the following meal. true false
False Consuming individual amino acid supplements on an empty stomach does not boosts the digestibility of proteins consumed
What is amino acids ?Proteins are made up of amino acid molecules. The components of life are proteins and amino acids. Amino acids remain after proteins have been digested or broken down. The human body creates proteins from amino acids to support the body
Additionally, there is less competition for absorption when amino acid supplements are taken empty-handed. The process of nutrients being absorbed into your bloodstream and distributed throughout the body begins as food is digested and the nutrients are released.Learn more about Amino acids here:
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If Michael’s mistake had been caught earlier, is there anything that could have been done to prevent the corn from dying?
If Michael's mistake was found sooner the removal of the fertilizer would have restored the plant. Constant watering would have also saved the plant from withering. Organic fertilizer could've been added instead because of its high potassium levels.
What is hypertonic, hypotonic and isotonic solutions ?Hypertonic solution: This type of solution is characterised by a larger solute concentration outside the cell than inside.Hypotonic solution: A solution is referred to as hypotonic if the solute concentration in the surrounding solution is lower than the solute concentration inside the cell.Isotonic liquid: Isotonic solution is one that contains the same amount of solute in the cell's interior as it does in the surrounding solution.Blood and hypotonic have different fluid, sugar, and salt concentrations. In comparison to blood, hypertonic has a higher percentage of fluid, carbohydrates, and salt. Similar fluid, sugar, and salt concentrations exist in isotonic and blood.Learn more about Solutions here:
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