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
rusak2 [61]
3 years ago
10

Explain why ions do not move through ion channels by only simple diffusion, whereas water does move through water channels by si

mple diffusion.
Specifically, what, in addition to the concentration gradient, affects the movement of ions through ion channels?
Biology
1 answer:
cluponka [151]3 years ago
3 0

Answer:

Electrical gradient.

Explanation:

Ions DO NOT move in Ion channels by simple diffusion because most ion channels can be:

I) selective of ions pass through it.

II) operating on a "open and close" principle. Where it opens or close on its own accord OR does so ONLY when induced by a specific influence like change in voltage of ion channels.

IN ADDITION to the concentration gradient, ELECTRICAL GRADIENTS (change in membrane voltage) affects the movement of ions through ion channels

You might be interested in
The membrane that lines the thoracic cavity walls is the
topjm [15]
It is the serous membrane
8 0
3 years ago
Read 2 more answers
What is NOT true about the evidence that fossils provide?
aleksandrvk [35]

Answer:

C. All fossils contain intact DNA that can be sequenced.

Explanation:

Fossils are the impression, trace or preserved remains of once-living thing from past thousands of years such as bones, exoskeletons, objects preserved in amber, and stone imprints of animals or microbes.

Fossils provide evidence about seevral characteristics and features of extinct organism such as evolutionary relationship between organisms and  transitional forms between groups of organisms. but all the fossil do not provide evidence about the intact DNA that can be sequenced because some fossils carry DNA rumnants which do not have the ability to get sequenced.

Hence, the correct option is C.

6 0
3 years ago
Drag each tile to the correct box.
Talja [164]
1. Sun (heat on the water)
2. Body of water
3. Evaporation( the specks going up to the sky)
4. The cloud
5 rain cloud
6. Rainfall (becoming a runoff)-> sent back into the cycle
7 0
2 years ago
Which countries have the largest carbon footprints in the Oceanic, Asian, European, Caribbean/Central American, South American,
Dmitrij [34]

Answer:

Asia - China (followed by India)

north America - USA (closely followed by canada)

european - Russia ( followed by Germany)

oceanic - Australia

8 0
3 years ago
The term "diarthrosis" refers to a joint that is
evablogger [386]
A synovial joint, also known as diarthrosis, joins bones with a fibrous joint capsule that is continuous with the periosteum of the joined bones, constitutes the outer boundary of a synovial cavity, and surrounds the bones' articulating surfaces. The synovial cavity/joint is filled with synovial fluid.
6 0
3 years ago
Other questions:
  • For which of the following reasons do small, isolated islands have a greater rate of
    9·1 answer
  • C4 plants are thought to be more efficient than c3 plants because they
    15·2 answers
  • Gases pass in and out of a leaf through the what?
    7·1 answer
  • Which sets of traits correctly identifies those that are most likely to be considered inherited?
    13·1 answer
  • What metric unit would you use to measure the length of a paper clip?
    12·1 answer
  • The total number of electrons in a neutral atom of every element is always equal to the atom’s
    11·1 answer
  • Are viruses alive? The scientific debate continues. Viruses exhibit some characteristics of life, but others are missing. The MO
    6·2 answers
  • How does a cells surface area change compared to its volume when the cell grows
    7·1 answer
  • How is physical and chemical change the same?
    14·2 answers
  • What is the Cell Theory , and what is it about ?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!