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jolli1 [7]
3 years ago
7

Molecules A and B come in contact with the cell membrane of the same cell. Molecule A passes through the membrane readily, but m

olecule B does not. Which statement could describe molecules A and B?
Biology
1 answer:
aivan3 [116]3 years ago
3 0

Answer:

Molecule A is a simple sugar or amino acid, while molecule B is a starch or protein.

Explanation:

Molecule A, as a simple sugar or amino acid, consists of small molecules which can readily pass through the cell membrane, while Molecule B, as a starch or protein, consists of large molecules, thus, can't pass across the cell membrane.

This is the reason why the cell membrane is considered to be selectively permeable.

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Answer:

The correct answer is- digestion, absorption, transport, elimination

Explanation:

The process of digestion starts from the mouth with the help of enzymes called salivary amylase present in our saliva. The food then passes through the esophagus to the stomach.  

In the stomach, the food is broken down in small fragments by churning movement which mixes digestive enzymes and food to form chyme.  

This chyme is passed to the small intestine where several enzymes from the liver and pancreas digest the food in smaller particles and absorb these particles in the blood. Therefore absorption takes place in the small intestine.

Then the solid waste material left behind after absorption is transported from small intestine to the large intestine and from large intestine waste is eliminated out of the body.

Therefore the correct order are: digestion → absorption→ transport→ elimination.

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Answer:

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Explanation:

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