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SashulF [63]
3 years ago
15

3. Define or describe a cell.

Biology
1 answer:
lbvjy [14]3 years ago
5 0

Answer:A cell is the smallest unit of a single or multicellular organism. They provide energy for the body of a multicellular organism, and can be specialized by the body for 1 specific task or many.

Explanation:

Hoped this helped!

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Nucleic acids are long chainlike molecules that carry genetic information which is read in cells to make RNA and proteins by which living things function.
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3 years ago
State two examples of situations where active transport occurs
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When something needs to be transported against its concentration gradient, or a molecule is too big to simply diffuse through a membrane, active transport has to be used. So active transport requires energy (ATP).

Examples:

1. Antiport pumps: transport one substance in one direction while transporting another substance the other way. An example of this is the sodium-potassium pump.

2. Symport pumps - uses a substance that wants to move from an area of high concentration to low concentration and carries another substance against its concentration gradient. An example of this is the sodium-glucose transport protein

3. Endocytosis - large amounts of extra cellular fluid can be taken into a cell - needs ATP to bind proteins in the cell membrane and causes them to change their shape...which eventually causes the surrounding of the fluid to be brought in (a vesicle).

4.exocytosis - opposite of above

8 0
3 years ago
The _________________ is a protists, not a fungus. However, it has a similar appearance as a fungus but a different cell wall co
lidiya [134]

Answer:

The slime mold is a protists, not a fungus. However, it has a similar appearance as a fungus but a different cell wall composition.

Explanation:

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8 0
4 years ago
Although most DNA mutations are harmful, some can be beneficial to an organism. true or false
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True. diphallia is a rare condition where a male has two functioning phallic organs, and it can help (if you know what i mean) sorry  this was only example i could think of
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