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melisa1 [442]
2 years ago
8

Why is the term “fluid mosaic model used to describe the cell membrane

Biology
1 answer:
ratelena [41]2 years ago
5 0

The Fluid Mosaic Model states that membranes are composed of a Phospholipid Bilayer with various protein molecules floating around within it. The 'Fluid' part represents how some parts of the membrane can move around freely, if they are not attached to other parts of the cell.

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How does the body of a runner keep up with the demand for energy when cellular oxygen levels are low?
-BARSIC- [3]

Answer:

The correct answer is through anaerobic respiration in the cytoplasm.

Explanation:

Cellular respiration is of 2 types

1 Aerobic respiration Respiration that require oxygen to occur

2 Anaerobic respiration Respiration that do not requires oxygen.

During low oxygen level the body of runner keep up with the demand for energy by undergoing anaerobic respiration which includes Glycolysis.

  During anaerobic condition the functionally active body cells undergo glycolysis and with each glycolysis 2 molecules of ATP are generated which can some how boost the energy supply within runner"s body.

   

7 0
2 years ago
Which of the following is an example of homeostasis? An organism that can
nexus9112 [7]

Answer: Homeostasis is a resistance to change.

Explanation: There are many other examples of homeostasis in biology, like the pH of blood and the concentration of ATP in a cell.

3 0
3 years ago
What is the function of enzymes in cells​
Agata [3.3K]
Enzymes are biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism.
3 0
3 years ago
Four factors that may lead to an increase of learners abusing substance in schools​
scZoUnD [109]

Answer:

4 reasons here:

Explanation:

1) Adventure; boredom causes them to look for excitement, even if it's detrimental to their health.

2) Peer pressure;research shows that risk-taking among teens doubles when peers are around.

3) media;easy to guess, shows a lot of risky behaviour in glamorous or admirable ways.

4) Poor self-esteem; bullying can lead to poor self-esteem and higher chance of the victim becoming depressed and taking substance to cope with the depression, also leads to err, self-death

5 0
2 years ago
Give an example of what would be membrane enclosed organelles in a eukaryotic cell.​
Gennadij [26K]

Answer:

Mitochondria, endoplasmic reticulum, golgi apparatus, or chloroplasts would all be an example.

Explanation:

Unlike prokaryotic cells, eukaryotic cells have a nucleus enclosed in a plasma membrane, as well as the mitochondrias, endoplasmic reticulums, golgi bodies or apparatuses, and chloroplasts.

3 0
2 years ago
Read 2 more answers
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