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Serhud [2]
2 years ago
14

Why is the cell membrane called a semi-permeable membrane

Biology
1 answer:
GREYUIT [131]2 years ago
4 0

Answer:

The plasma membrane is called a selectively permeable membrane as it permits the movement of only certain molecules in and out of the cells. ... It allows hydrophobic molecules and small polar molecules diffuse through the lipid layer, but does not allow ions and large polar molecules cannot diffuse through the membrane.

Explanation:

<h2><u><em>This is all I know.</em></u></h2><h2><u><em>Hope it helps~</em></u></h2><h2><u><em>Good luck with your work!!~</em></u></h2>
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Somebody help me so I can give y’all some points
Fynjy0 [20]

Answer:

d is the correct answer

Explanation:

an ionic bond forms when positively charged metal ion attract to negatively charged ones

hope this helps !

5 0
2 years ago
Read 2 more answers
If someone can just give me an idea of what the answer is you don’t have to type out a full crq
saveliy_v [14]

Explanation:

Actually, two organelles transport protein in a eukaryotic cell (multicellular organisms): (rough) Endoplasmic Recticulum and Golgi Apparatus.

The (rough) endoplasmic recticulum transport the newly synthesized proteins to the golgi apparatus from where they are transported to the various regions of the cell or outside the cell. Smooth endoplasmic recticulum is not associated with protein transport.

Proteins, carrying a signaling sequence, are transported from the endoplasmic recticulum, packaged into vesicles, to the golgi apparatus (or golgi complex or golgi bodies). These proteins are modified by enzymatic reactions as they move through the golgi apparatus. After processing, these proteins are either excreted from the cell or are sent to various locations within the cell. 

It is difficult to pinpoint the location of these organelles within the cell as locations are different for mammals, plants, yeasts, etc. Generally, the golgi apparatus is found adjacent to the endoplasmic recticulum, which in turn is found throughout the cell but has a higher density near the nucleus.  

3 0
3 years ago
Given a population that contains genetic variation, what is the correct sequence of the following events under the influence of
GuDViN [60]

Answer:

2. A change occurs in the environment.

4. Poorly adapted individuals have decreased survivorship.

1. Well-adapted individuals leave more offspring than do poorly adapted individuals.

3. Genetic frequencies within the population change.

Explanation:

The natural selection theory was developed by Darwin to explain how evolution occur within a population. The environment is in constant state of changes and always select for organisms that are better adapted to it.

Poorly adapted organisms gradually reduce from the population as a result of decreased survival while well-adapted individuals multiply and contribute more to successive generation.

Well-adapted individuals pass on the adaptive alleles to their offspring, eventually leading to a change in gene frequencies within the population.

Hence, the sequence of events is 2, 4, 1 and 3.

8 0
3 years ago
A nurse is preparing to administer an intravenous piggyback medication to a client who is receiving a continuous infusion of int
sergij07 [2.7K]
T<span>he nurse should assess the patient's prior knowledge and his ability to participate in any education sessions. The nurse should explain to the patient the possible outcomes of each medication. The patient should also be well instructed of the symptoms and other reactions brought about by medication.</span>
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3 years ago
Most animals use a circulatory system in which blood or a similar fluid is circulated among body tissues. Which animals do NOT d
zimovet [89]

Answer:

B

Explanation:

3 0
3 years ago
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