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
Transport a victim of heat exhaustion to a medical facility if no improvement is seen within:
malfutka [58]
Within 30 minutes the victim of a heat exhaustion needs to be transported to a medical facility if no improvement has been seen. Heat exhaustion is a condition in where symptoms like rapid pulse and heavy sweating can be seen. Heat cramps would be the mildest and heatstroke is the most severe.
6 0
4 years ago
How do cells know how to develop within a multicellular organism
Tju [1.3M]
Its B as the cells development such as its biochemistry is all controlled by the cells DNA

hope that helps 
3 0
3 years ago
Read 2 more answers
Assume U.S usage of Uranium is 25% of world usage. If the United States were to rely only on its domestic Uranium resources, how
Aneli [31]
Uranium extraction from seawater: Uranium is most often mined from the Earth's crust, but it can also be extracted from seawater, which contains large quantities of uranium<span> (3.3 ppb, or 4.6 trillion kg). Theoretically, that amount would last for 5,700 years using conventional reactors to supply 15 TW of power.</span>
7 0
3 years ago
Specialist in the genitourinary system of males and the urinary system of females
Romashka-Z-Leto [24]

Answer:

Urologist

Explanation:

The person who is involved in the study of the genitourinary system of both males and female is known as the urologist.

The genitourinary system is the system of the organs which are involved in both the sexual and urinary function in the body.  The word is formed by the uro from urine and logist- for the person who studies forms the word urologist.

Thus, the urologist is the correct answer.

8 0
3 years ago
If glycogen stores are full and the body's immediate need for energy is met, what happens to the remaining glucose
lisabon 2012 [21]

The remaining glucose is converted to fat and stored into the body as an energy source.

Glucose is a sugar molecule which can be converted into two three-carbon pyruvate molecules through the process of glycolysis and then into acetyl CoA. So, when the body requires immediate energy, acetyl CoA enters the Citric Acid Cycle (Krebs cycle) and ATP is formed. But, when glucose intake exceeds your body's energy needs, acetyl CoA begins the process of fatty acid synthesis (FFA). FFAs become triglycerides that are stored in the fat tissues of the body which can be broken down later to give the energy the body needs.


5 0
4 years ago
Other questions:
  • In which type of reproduction can cells divide through the process of mitosis?
    11·1 answer
  • Your cousin returns from a trip to caves from around the globe. He shows you some snot-like
    9·1 answer
  • What is the correct procedure for students to follow if a chemical spilled
    14·1 answer
  • Are sister chromatids present in all or part of this phase
    9·1 answer
  • State one way a complete blockage at location X would affect the reproductive process ? Please answer !!
    12·1 answer
  • Why do the finches of the Galápagos Islands have different beaks
    5·1 answer
  • Long, streamlined bodies reduce friction and allow access to small spaces. This body type is found among amphisbaenians, nematod
    14·2 answers
  • Which phrases correspond to "spontaneous generation?"?
    11·2 answers
  • Which one of the following is the highest level of environmental organization?
    9·1 answer
  • If a prey population decreases, then the predator population
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!