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
Naya [18.7K]
3 years ago
8

What is a protein channel?

Biology
2 answers:
mr_godi [17]3 years ago
8 0
A protein channel is a protein that allows the transport of specific substances across a cell membrane.
aliya0001 [1]3 years ago
5 0
<span>Protein channels are needed to transport substances because it accelerates the transport process. Very few substances enter or leave cells without being attached to a transport protein. Different types of substances require different types of proteins to transport them. Protein channels transport water or ions downwards and ATP-powered pumps transport molecules or ions upwards. ATP generates energy to transport the molecules upwards. Gravity is used to transport the water molecules downwards. So, in a nutshell, if substances need to be transported from the top of the body downward, the force of gravity is used to transport the substances down. If substances need to be transported upwards, ATP, a coenzyme, is used to generate energy to transport the substance upwards</span>
You might be interested in
Plant growth is dependent on the amount of fertilizer applied. That was the hypothesis Mel and Bill decided on for their science
irinina [24]

The correct answer is C.

3 0
3 years ago
Read 2 more answers
What would we need to do to increase the plant biomass on Earth? List about two solutions ​
Sergeu [11.5K]

Answer:

I'm just gonna take a guess at this, it's not something I really learned about.

Explanation:

1. Stop cutting down forests and plants

And 2. Start planting more plants to increase how many there are

Hope this is good?

5 0
3 years ago
The cell below is a lung cell of a salamander. In which stage of mitosis is it? What are the structures visible in green and blu
strojnjashka [21]

Answer:

In which stage of mitosis is it? Metaphase

What are the structures visible in green and blue fluorescence? green show Microtubules and blue Chromosome.

Explanation:

The chromosomes align themselves along the equatorial plane of the spindle. They are suspended by microtubules.

4 0
3 years ago
If the blood pressure in your brain is 120 mm when you are lying down, what would it be when you stand up? Assume that your brai
Mashutka [201]

Answer:

The correct answer is 88.84 mmHg.

Explanation:

The pressure differential between the brain and the heart while standing up will be 120 - rho × g (gravity) × h, here h is the distance from the brain to the heart. The h is 40 cm or 0.4 m.  

rho×g×h = 1060 kg/m³×9.8 m/s²×0.4m  

= 4155 Pa  

Now converting Pa to mmHg we get:  

4155 Pa × 760 mmHg / 1.01325 × 10⁵ Pa  

= 31.16 mmHg  

Thus, the pressure in the brain now is 120 - 31.16  

= 88.84 mmHg (hypotension)  

6 0
3 years ago
Describe the connection between limiting factors and invasive species
swat32

Answer:

Invasive species consume limited resources and become competitor of native species in a given ecosystem

Explanation:

Invasive species are the outsider species introduced in any given ecosystem. These invasive  species become a competitor with the native species of that ecosystem for limited resources and hence deplete the limited resources at a faster pace thereby leaving all other species at the risk of dying.

4 0
3 years ago
Other questions:
  • A synthesis reaction occurs between water and sucrose yielding the reduced form of glucose, the only sugar the human body can me
    13·1 answer
  • The researchers observed a random sample of mating pairs. The spiders had all been identified and measured before the mating occ
    5·1 answer
  • What is the difference between a light microscope and an electric microscope?
    10·1 answer
  • marrisa and seaan are in the process of adopting a baby. One of the documents the adoptionsgency provides is a full medical hist
    8·2 answers
  • In the system used to classify all organisms, which of the following is true? A: All groups have the same number of organisms.B:
    8·2 answers
  • Which word describes the amount of matter an object contains? altitude, density, mass,pressure
    12·2 answers
  • Which of the following describes the role of photosynthesis in the carbon cycle?
    7·1 answer
  • One rabbit run faster than other rabbits in a population. How will the ability to run fast most likely benefit the rabbit? pls h
    15·2 answers
  • WILL GIVE BRAINLIEST / Dora was asked to label the upwelling and downwelling locations on this map of the earth. Dora labeled A
    11·2 answers
  • After nitrogen is removed from the amino acids in protein-containing foods, the remainder of the amino acids can enter aerobic r
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!