Which of the following best describes how the structure of the fluid mosaic model of the cell membrane controls the movement of substances in and out of the cell? (3 points)
Answer: The fluid mosaic model describes the structure of the plasma membrane as a mosaic of components —including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character. Plasma membranes range from 5 to 10 nm in thickness.
Explanation:
The option that describes the fluid mosaic model of the plasma membrane is a lipid bilayer with protein molecules dispersed within it.
It should be noted that the fluid mosaic model of the plasma membrane was proposed by Singer and Nicholson to explain the structure of the plasma membrane.
The plasma membrane is known as a fluid model because it has several types of molecules that float along the lipids. The fluid mosaic model of the plasma membrane is made up of two layers of lipid molecules where there are protein molecules dispersed within.
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5. The water in the Buffalo River flows at an average speed of 4 km/hr. If you and a friend decide to
canoe down the river a distance of 18 km, how many hours will it take?
Answer:
48km/hr
Explanation:
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I NEED HELP ASAP!! will be willing to mark you brainliest!
Answer Q1-7 using the food web pictured below.
1. How many food chains make up the food web?
2. Which organism is an herbivore?
3. Which organism is an autotroph?
4. Which organism is a third-order heterotroph? To what trophic level does that organism belong?
5. Which organism is an omnivore?
6. Which organisms belong to more than one food chain?
7. Which organism belongs to more than one trophic level?
1. 6
2. insect
3.plant
4.snake
5. snake
6. plant
7. bird
hope this helps, sorry if i got any wrong
elements or compounds produced by a chemical reaction
Answer:
Are known as a reactant!
Explanation:
please help (5 stars no cap)
Answer: this is plant cell find features that plant cells have that animal cells don't have
Explanation:
Scenario
Hemoglobin is a protein that helps transport oxygen in specialized red blood cells. Oxygen is a required component for cellular metabolism (energy production), which powers important cellular processes. A person with sickle cell anemia does not produce normal hemoglobin, as seen below.
Prompt
How is DNA responsible for sickle cell anemia?
Claim: (1-2 sentences)
Evidence: (4 pieces of evidence are needed to get full credit.)
Reasoning: ( A minimum of 3 sentences using vocabulary terms are needed to get full credit.)
Answer:
Explanation:
Sickle cell disease (SCD) is a group of inherited red blood cell disorders. If you have SCD, there is a problem with your hemoglobin. Hemoglobin is a protein in red blood cells that carries oxygen throughout the body. With SCD, the hemoglobin forms into stiff rods within the red blood cells. This changes the shape of the red blood cells. The cells are supposed to be disc-shaped, but this changes them into a crescent, or sickle, shape.
The sickle-shaped cells are not flexible and cannot change shape easily. Many of them burst apart as they move through your blood vessels. The sickle cells usually only last 10 to 20 days, instead of the normal 90 to 120 days. Your body may have trouble making enough new cells to replace the ones that you lost. Because of this, you may not have enough red blood cells. This is a condition called anemia, and it can make you feel tired.
The sickle-shaped cells can also stick to vessel walls, causing a blockage that slows or stops the flow of blood. When this happens, oxygen can't reach nearby tissues. The lack of oxygen can cause attacks of sudden, severe pain, called pain crises. These attacks can occur without warning. If you get one, you might need to go to the hospital for treatment.
Answer:
because DNA can spread anemia.
Explanation:
hope this helps do more research.
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What molecules are carbon atoms in before the chemical change?
Answer:
Carbon Dioxide molecules
Explanation:
Match these items.
1. kg measurement of area
2. cm2 measurement of mass
3. L measurement of volume
4. m measurement of length
Answer:
1. length is m (meters)
2. Mass is kg (kilograms)
3. area is cm^2
4.volume is L (liters)
What are the 17 crops that California is the sole producer
What is a living cell ?
Answer:
A living cell is the basic unit of structure and function in living organisms.
Please help fast!!!!!
Who observed one cell dividing into two, which led to another tenet of the cell theory: cells come from preexisting cells?
A: Robert Brown
B: Matthias Schleiden
C: Theodore Schwann
D: Rudolph Virchow
Answer:
The answer is C. Theodore schwann.
Explanation:
The answer is
1.) nucleus
2.)two
the answer is not cell for mitosis
Answer:
but what is the question?
How many types of bones are there?
1.) 1
2.) 2
3.) 3
4.) 4
5.) 5
Answer:
Hello!!! Princess Sakura here ^^
Explanation:
There are 5 types of bones and they would be flat, long, short, irregular, and sesamoid.
How does the Gulf Stream affect weather in the United States?
A.
It brings cooler temperatures from the poles.
B.
It brings cooler temperatures from the tropics.
C.
The warm surface currents help create storms and fog.
D.
The cool surface currents produce cooler weather and fog.
Which two pieces of fossil evidence support the idea of continental drift? bacteria and petrified wood Glossopteris and bacteria Lystrosaurus and Glossopteris petrified wood and Tyrannosaurus
Answer:
It's Lystrosaurus and Glossopteris
Explanation:
got it right on edge
Answer: the other person is right, it is Lystrosaurus and Glossopteris
Explanation:
The origin of a muscle is generally:
ОА.
The stable and proximal attachment.
B. The stable and distal attachment.
O C.
The moveable and distal attachment.
D.
The moveable and proximal attachment.
Hydras are animals related to coral and jellyfish. Hydras can reproduce sexually or asexually. Why would hydras avoid reproducing asexually when conditions are difficult?
1. The high genetic diversity could mean that all of the hydras die, depending on the situation.
2. The lack of genetic diversity could mean that all of the hydras die, depending on the situation.
3. Reproducing more slowly would be a good way to take advantage of plentiful resources.
4. Reproducing more rapidly would be a good way to take advantage of plentiful resources.
Answer: 3. Reproducing more slowly would be a good way to take advantage of plentiful resources.
Explanation:
Hydra reproduce by both sexual and asexual modes of reproduction. In the case of asexual reproduction the bud develops on the parent body and derives nutrition from parent body, matures and finally get detached from the parent body. During asexual reproduction many buds will develop and live as an individual organism this will reduce the availability of resources like habitat, food, and others. Thus if the organism reproduces slowly then it will take advantages of many resources without experiencing the scarcity of resources.
which of the following determines the identity of an element?
a. atomic number
b. mass number
c. atomic mass
d. overall change
The identity of any element is given out by the atomic number it carries thus every element has different atomic number. The correct answer is option A.
What does atomic number signify ?It signifies the number of electrons and the number of protons which are present in any element as the atomic number is equal to the number of electrons and the number of protons as well.
Atomic number is a unique property that is given out to element where the basis of their characters and the properties signifies their basic characters on which the elements will align themselves for example the elements having the atomic number as the 1 at the end usually has 1 electron in their last atomic shell same for 2.
On the basis of their properties elements are divided into various groups where the 1st one is called as alkali metal and the 2nd one is called as alkaline earth metals, 17 is called as halogens and the last 18th is called as noble gases.
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case studies assignment grade 11
You are looking through a microscope at stained cells that appear to have a stiff outer edge and smaller structures inside
Jaime and Ryan first noticed that something was wrong with their newborn baby about four months after birth. Their baby seemed to be having difficulty holding her head up. After a series of tests, it was noticed that fatty acids were not being digested by the cells and were accumulating on the child's nerve cells. Which organelle is not properly functioning in the cells of Jaime and Ryan's newborn baby?
Answer:
Liver
Explanation:
The liver is an organelle in the human body that is responsible for the digestion of fat. Liver produces bile, a digestive juice that helps in the digestion of fats and vitamins. Bile juice is stored in the gall bladder and move into the small intestine for the digestion of fat.
As per the details in the question, a newborn baby is unable to digest fat which is affecting the child's nerve cells. It means the newborn baby's liver is not functioning properly and not making bile juice that can digest the fat properly.
Hence, the correct answer is "Liver".
what is the term used for populations moving into an area
Answer:
Popularity Growth (Immigration)
Explanation:
:( i tried (sorry)
Answer
Population transfer or resettlement is the movement of a large group people from one region to another
Hope this helps! <3
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What can happen if a population of organisms disappears from the food chain in an ecosystem with low biodiversities, such as the tundra?
Answer: If the population of an organism dies out, then the animals on top of it on the food chain are going to die, since they will have no other food to rely on. Or, they will have to find a new source of energy if they do not.
This is why we should not try to kill any animals, even too much fishing can cause the same problem.
Hope this helps you!
The movement of individuals into an area is called
A. Demography
B. Carrying capacity
C. Immigration
D. Emigration
Answer:
D. Emigration
Explanation:
The answer is D. because the actual definition for emigration is: "The act of leaving one's own country to settle permanently in another; moving abroad." The definitions between immigration and emigration are very similar but the actual definition for immigration is: "The action of coming to live permanently in a foreign country." so I would stick with D.
sorry if I'm not right I hope you do good!
A population of 288 cichlids lives in a lake with ample food, oxygen, and shelter. Over the course of one year, 375 new cichlids are born and 105 older cichlids die.
Population Growth
StartFraction d Upper N Over d t EndFraction = Upper B minus Upper D
What is the new population size of cichlids?
(
)
Answer:588
Explanation:
10. True or False. The pH scale is the measurement system to indicate the concentration of hydrogen (H+) ions in
a solution
Answer:
that is true
Explanation:
15 POINTS!!!!! Select ALL the correct answers.
Honey fungi grow on the bark of certain trees. The fungi get their energy by absorbing nutrients from the tree. The fungi have a parasitic relationship with the tree. What are two likely effects of this parasitism?
1. The tree will be damaged.
2. The capacity of the tree to reproduce will increase.
3. The growth capacity of the tree will be affected.
4. The tree’s energy requirements will be reduced.
Answer:
3 and 4
Explanation:
Answer:
3 and 4
Explanation:
just do it is right and I did a test on it and got a A+
so just go with it.
Which food would be most likely to cause a foodborne illness?
A. Lemon juice
B. Baked potato
C. Washed apple
D. Raw sprouts
Answer: raw sprouts
Explanation: Raw sprouts are most likely to cause a foodborne illness because it is raw. Any raw food may have harmful bacteria, and it should be cooked, boiled, or fried. The answer is raw sprouts.
Hope this helps!
Which model represents the intermediate step between glycolysis and the citric acid cycle?
Model
Answer:
Model A
Explanation:
Answer:
A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A.
Explanation:
In 1907, Dr. Duncan MacDougall performed a series of experiments in which he attempted to measure the weight of the soul as it left a dying person. In his experiments, MacDougall placed a dying person on a scale and measured their weight immediately prior to and following death. MacDougall determined the change in weight to be approximately 21 grams. From these experiments, he concluded that the soul exists and has mass. What is the fundamental scientific flaw in his conclusions? (5 points)
They are based on the concept of the soul, which is beyond the bounds of science.
They are based on the idea that the soul is made of matter, not energy.
They are based on the assumption that the soul does not remain in the body after death.
They are based on the concept that the soul can be measured.
Answer:
I think so..
A. They are based on the concept of the soul, which is beyond the bounds of science.
Answer:
A. They are based on the concept of the soul, which is beyond the bounds of science.
Explanation:
Good luck! Hope this helped :)