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Alexus [3.1K]
4 years ago
5

What does selectively permeable membrane mean

Biology
2 answers:
Yanka [14]4 years ago
7 0

Selective permeability membrane is the membrane that allows certain organisms to come in and out of the cell.
Anvisha [2.4K]4 years ago
6 0

Answer:

The answer is: <em><u> It means it is a membrane that will allow certain molecules or ions to pass through it by means of active or passive transport. </u></em>

Explanation:

All cells are enclosed with a cell membrane. The term, <u>selectively permeable</u>, refers to :

the membrane allows some substances or molecules to enter the cells, and others to be prevented from entering. It also allows substances to leave the cell.

This process can be done by :

Active transport -requires the cell to expend energy to move the materials.

Passive transport- it can be done without using cellular energy.

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valentinak56 [21]

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there is only option b is right with the respect to the question

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Where does glucose that is released into the blood ultimately end up
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If blonde hair is dominant and designated as "b" and brunette hair is recessive and designated as "b," probability would predict
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5 0
3 years ago
In an adult male, the body consists of about ________ percent water. 80 60 10 40 90
faltersainse [42]
An adult male body consists of about 60% of water.
4 0
4 years ago
Which describes the missing step?
Nimfa-mama [501]

Answer:

The missing step is oxygen is removed from the water after step 3.

Explanation:

The steps listed by Xavier are:

  1. <em>Water is drawn in trough pores and enters the central cavity. </em>
  2. <em>Food is filtered and digested. </em>
  3. <em>Water leaves trough an opening at the top of the body.</em>

Porifera or sponges are aquatic, immobile invertebrates whose structure is saccular with an upper opening, the osculus.

Sponges absorb water through their pores, where the porocytes are found, and through flagellated cells -the coanocytes- the movement that allows the entrance of water to the spongocele or atrium is produced, in addition to the phagocytosis of organic elements.

Once the water is in the interior chamber of the sponges, the organic particles are phagocyted to be digested, and the oxygen is removed from the water, and passes through diffusion into the cell.  The waste products, as well as carbon dioxide, are released into the water that will be expelled through the osculus.

<u><em>In Xavier's list, the missing step is the removal of oxygen from the water, before it is expelled from the body of the sponge</em></u><em>.</em>

<em />

Learn more:

Sponge structure brainly.com/question/11256747

6 0
4 years ago
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