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Maru [420]
3 years ago
13

4. What do complement proteins do?

Biology
1 answer:
FrozenT [24]3 years ago
5 0

Answer:

They signal phagocytes.

Explanation:

hope this helps

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What elements make up carbohydrates, nucleic acids, proteins, and lipids?
Mamont248 [21]
Carbohydrates = carbon, hydrogen, and oxygen
proteins = carbon, hydrogen, oxygen and nitrogen
nucleic acid =  phosphorus, carbon, hydrogen, nitrogen, and oxygen
lipids = carbon, hydrogen, and oxygen
4 0
4 years ago
The rough endoplasmic reticulum is a cell structure that consists of folded membranes that contain ribosomes. What is the advant
attashe74 [19]

Answer:

B

Explanation:

The folds contain ribosomes attached to the membrane. The more the folds the more the surface area to which more ribosomes can attach. The ribosomes are organelles responsible for the manufacture of protein in cells. Thereafter, the proteins are properly folded by the mediation of chaperones in the lumen of the RER.

6 0
4 years ago
14. What two things limit the size of cells?
sergiy2304 [10]
14. Surface Area , and Volume Area limits the size of cells.

15 .A cell is a metabolic compartment where a multitude of chemical reactions occur. The number of reactions increase as the volume of metabolic volume within a cell increases. (The larger the volume the larger the number of reactions)  
All raw materials necessary for metabolism can enter the cell only through its cell membrane.  
The greater the surface area the larger the amount of raw materials that can enter at only one time.  
Each unit of volume requires a specific amount of surface area to supply its metabolism with raw materials. The amount of surface area available to each unit of volume varies with the size of a cell.  
As a cell grows its SA/V decreases.  
At some point in its growth its SA/V becomes so small that its surface area is too small to supply its raw materials to its volume. At this point the cell cannot get larger.

16. Cells only divide when they receive specific signals from proteins called mitogens,the presence of mitogens can limit cell division. Mitogens are needed for cell division in healthy cells and are released depending on what cells the body needs.
4 0
4 years ago
What role do the mountains play in creating biome?
ASHA 777 [7]
Mountains determine wind flow, as well as serving as a cloud break. Depending on which side of the mountain you’re on, you will either have a mostly dry, dead region. Or a moist, fertile region.
4 0
4 years ago
Help me check my answer! And rephrase if needed
Alexus [3.1K]

Answer:

it looks pretty good. weve been doing this for like 3 days now.

4 0
2 years ago
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