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
kupik [55]
3 years ago
15

Compare and contrast the mechanisms of getting material across the plasma membranes of cells. Tells me what the mechanisms are i

f they are active or passive transport, how do they function and give me an example of where you would find that mechanisms.
Biology
1 answer:
stepladder [879]3 years ago
8 0

Answer:

Materials get transported from the cell by some mechanisms such as Active Transport, Passive Transport, Diffusion, etc.

Explanation:

Active Transport :

It is a process by which, materials are transported from the extracellular membrane to the intracellular membrane with the help of ATP. It has a few types :  

Primary Active Transport :  

This system is standing upon the sodium-potassium pump. It moves out   Na⁺ from the cell and allows the entry of K⁺ into the cell. In this process ATP is a source of energy. E.g, Sodium-potassium pump.

Secondary Active Transport :

It is mainly standing upon Primary Active Transport. In this process, the main key point is the concentration gradient. There is already a concentration gradient set up by the primary active transport. This system uses that up and moves other substances against their own gradient concentration. E.g, assuming, there is a high concentration of sodium outside the cell,  if a route such as a channel or a carrier protein is open then sodium ions will move into the cell.  In this transport system, some cotransporters are used who move in the sodium ion into the sodium gradient.  

Passive transport :

It is a process by which, substances cross the plasma membrane without acquiring any energy from the cell. Here, no energy is needed because the substances are moving from higher concentration to its lower concentration. E.g, cell membrane or plasma membrane works as a permeable or semipermeable membrane.  

Diffusion :

It is the movement of a substance across a membrane, due to the concentration gradient, without any help from other molecules. E.g, movement of the gaseous molecule from cell to cell.

You might be interested in
A student has several pet hermit crabs. He wants to determine how the hermit crabs choose which shell they inhabit. He thinks th
julsineya [31]
A. He should add shells that are different colors, but the same size and type, to the tank and observe which shells the hermit crabs choose.

Durning an experiment you need to keep everything the same but only change the certain things based on your theory.
Such as how the student wanted to see if the color attracted the crab. If he had changed the size and type of the shell then the crab would have chosen the bigger one as they tend to grow into larger shells.
7 0
2 years ago
In the chart above, which of the sequences describes a negative consequence of deforestation?
Shalnov [3]

Answer:

C. Sequence C

Explanation:

Deforestation means cutting down of trees so it will lead to soil erosion and flooding

6 0
2 years ago
Which organism is most related to birds?
Lesechka [4]

Answer:

Crocodiles are actually the closest living relatives to birds

6 0
2 years ago
Iron reacts with atmospheric oxygen to form iron oxide or ferric oxide. Look at the chemical equation for this reaction:
kondaur [170]

Answer:

4 Fe + 3 O₂ → 2 Fe₂O₃

Explanation:

Let's start with the oxygen.

Reactants - 2

Products - 3

What number do 2 and 3 have in common? 6.

Put a 3 in the reactants and a 2 in the products to balance the oxygen.

Fe + 3 O₂ → 2 Fe₂O₃

Now let's look at the iron.

Reactants - 1

Products - 4

Put a 4 in the reactants to balance the iron.

4 Fe + 3 O₂ → 2 Fe₂O₃

The equation is balanced. Hope that helps.

8 0
3 years ago
What is the function of cartilage in adult bones?
d1i1m1o1n [39]

Answer:

preventing friction between bones

8 0
3 years ago
Read 2 more answers
Other questions:
  • Q - Today there are now at least thirteen species of finches on the Galapagos Islands and all of them evolved from one ancestral
    7·1 answer
  • What is the population of beijing now?
    12·2 answers
  • What two features make hair a good subject for establishing individual identity? to which layer of the hair shaft are much of th
    15·1 answer
  • Glucose is used to make ATP energy.​
    11·1 answer
  • Where does the first stage of cellular respiration, glycolosis, occur? A. cell cytoplasm B. mitochondrial matrix C. mitochondria
    15·2 answers
  • Which position shows the Moon at Last Quarter?<br><br> A<br><br> E<br><br> C<br><br> F
    6·1 answer
  • Explain how scientist might use a Dichotomas key/chart
    9·2 answers
  • A pot of water is heated on an electric stove. Which of the following best describes
    7·1 answer
  • How did Charles Darwin describe the process of natural selection
    7·1 answer
  • Observations:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!