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
nignag [31]
3 years ago
15

which of the following statements are true regarding active transport and facilitated diffusion (choose two answers) a) Active t

ransport utilizes channel proteins and facilitated diffusion utilizes carrier proteins b) Both processes require the use of membrane proteins c) Both processes require the input of energy (ATP) d) Active transport moves substances against the concentration gradient and facilitated diffusion moves substances along the concentration gradient
Biology
1 answer:
Vera_Pavlovna [14]3 years ago
7 0

Answer: B and D

Explanation: We can break down why the correct answers are choices B and D by understanding why A and C are incorrect.

Option A states that active transport utilizes channel proteins, and facilitated diffusion utilizes carrier proteins. This is incorrect. Active transport involves carrier proteins, and facilitated diffusion involves channel proteins. Carrier proteins are different from channel proteins in that, while channel proteins can only facilitate the passive diffusion of ions into or out of the cell along their concentration gradient, carrier proteins can also use ATP to move ions in or out of the cell against their concentration gradient.

This brings us to why option C is also incorrect. Option C states that both processes require the input of energy in the form of ATP. While active transport requires the use of ATP to transport ions with or against their concentration gradient, facilitated diffusion does not. This is easily remembered when we consider that active transport is called *active* transport because the cell is *actively* using energy to transport ions.

Hope this helped.

You might be interested in
What is pollination?
Paladinen [302]

Answer:

B. when the pollen lands on the sticky stigma

hope this helps!

please give brainiest<3

8 0
3 years ago
Read 2 more answers
Why might a nymph have a diet more like that of an adult than does a larva? SAMPLE RESPONSE WHOEVER ANSWERS CORRECTLY GETS BLAIN
Burka [1]

Answer:

Because a nymph looks more like an adult, just without wings.

Explanation:

7 0
2 years ago
Read 2 more answers
How does the urinary system control the water in the body
lyudmila [28]

Answer:

The kidneys can regulate water levels in the body; they conserve water if youare dehydrated, and they can makeurine more dilute to expel excesswater if necessary. Water is lost through the skin through evaporation from the skin surface without overt sweating and from air expelled from the lungs.

4 0
3 years ago
Read 2 more answers
A pair of fruit flies reproduces and has one thousand offspring. All one thousand of the offspring have the alleles Gg. What is
Ne4ueva [31]

Answer:

The parents alleles would be GG and gg. the reason why is if they were both GG they would all be GG. If they were both gg all the offspring would be gg. hope this helps.

Explanation:

7 0
3 years ago
A competent bacterial strain with genes a, b, and c is transformed by a donor bacterial fragment. Cotransformation frequencies f
mina [271]

Answer:

a) Genes b and c are farthest apart.

Explanation:

Transformation occurs when a competent bacteria cell takes up genetic material from the environment. Usually a donor cell donates its gene fragment  which is then incorporated into the chromosome or plasmid of recipient bacterial cell.

Cotransformation occurs when two genes are taken up together by the recipient. The closer the genes lie to each other, more are the chances of them being taken up together. Contransformation frequency will be higher if two genes are close to each other. Here, cotransformation frequencies between three genes are given. Amongst them, the lowest frequency is 0.0064% which is present between gene b and c. Hence, gene b and c are the farthest apart.

4 0
2 years ago
Other questions:
  • Heart passageway to the arteries??
    9·1 answer
  • Why In type of hot ,dry,weather , some cities ban the use of garden sprinklers
    5·1 answer
  • Both euglena (eukaryote) and cyanobacteria (a prokaryote) are photosynthetic unicellular organisms found in pond water. the feat
    14·1 answer
  • Which group of animal has the greatet known species diversity?
    10·1 answer
  • A geologist finds four layers of sedimentary rock. She determines that no geologic events have shifted the layers. She labels th
    9·2 answers
  • How is the way a dog looks at a face similar to the way humans look at faces
    14·2 answers
  • An organism that is classified as anaerobic can perform respiration (1 point)
    14·2 answers
  • Which types of organisms typically reproduce by binary fission
    14·2 answers
  • List the four adaptation seen in Australopithecus afarensis fossils that enable biedalism.
    8·1 answer
  • Which of the following planets has the largest elliptical orbit?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!