1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Semenov [28]
3 years ago
9

Compare the movement of oxygen and carbon dioxide across the cell membrane. (4 marks)

Biology
1 answer:
lana66690 [7]3 years ago
3 0

Answer:

Molecules naturally disperse from areas of higher concentration to lower concentration.

As oxygen-rich (and carbon dioxide-poor) blood travels by a cell the oxygen diffuses through the cell membrane to the area of lower concentration inside the cell. It can do this easily because the oxygen molecule (O2) is very small and has no charge or polarity. The oxygen is used up rapidly by mitochondria. This rapid consumption causes oxygen to constantly move into the cell from the blood.

The mitochondria creates carbon dioxide (CO2) as a waste product of cellular respiration (the process that makes energy for your body). Because the CO2 is of a higher concentration in the cell than in the blood passing by, this gas continually diffuses out of the cell. It too is small and uncharged so it can pass through cell membranes easily.

These movements require no energy (in the form of ATP) on behalf of the cell.

Explanation:

You might be interested in
How might 3D printing change organ transplantation?
saw5 [17]

Answer:  

3D printing is ushering in a new era of efficiency, cost-effectiveness and convenience in the medical industry. ... As the technology evolves into a more practical and efficient system, so also will drug manufacturing, organ transplantation and other fields of medicine

hope that i helped

5 0
3 years ago
9. Why do you think there is such a problem keeping people out of flooded areas or
MakcuM [25]

Answer:

A growing problem

Yet history is not the only reason why flood-prone locations are overpopulated. For one thing, rising sea levels and a changing climate are putting more cities' residents at risk. And what's more, new homes are still being built in flood-prone areas around the world.

Explanation:

Hope it's help

6 0
3 years ago
What is <br>1DNA<br>2 cytoplasm<br>3 cytoskeleton​
mezya [45]

Answer:

1. deoxyribonucleic acid, a self-replicating material which is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

2.the material or protoplasm within a living cell, excluding the nucleus.

3.a microscopic network of protein filaments and tubules in the cytoplasm of many living cells, giving them shape and coherence.

Explanation:

3 0
3 years ago
True or False? : A good scientific experiment will only test one variable. Everything else will be kept constant.
liubo4ka [24]
True! because if you have more than one variable, you aren’t going to know which variable changed the dependent variable.
4 0
3 years ago
Read 2 more answers
. What about when the nitrogen cycle is thrown off balance by the Haber-Bosch process and others like it?
GalinKa [24]

The answer is 5 hope this helps you have a great day

4 0
3 years ago
Other questions:
  • What is the name of the process that occurs when complementary pieces of dna or rna bind to each other?
    5·1 answer
  • Which process requires cellular energy to move
    12·1 answer
  • 5. How are photosynthesis and cellular respiration related?
    9·1 answer
  • Why does meosis produce cell with fewer chormasomes
    9·1 answer
  • Which condition is essential for natural selection to result in a new species
    12·1 answer
  • What is formed by carbon by extreme pressure and heat?
    10·1 answer
  • IO
    11·2 answers
  • Each day your body makes (.......BLANK.....) red blood cells.
    11·1 answer
  • What is meaning of H2O and compound​
    6·1 answer
  • How many DNA molecules were in the beginning of the gif?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!