The correct answer is Hyalin.

Here's a step-by-step explanation:

1. Polyspermy is the fertilization of an egg by more than one sperm, which can lead to death of the embryo in many species, including sea urchins.

2. To prevent polyspermy, a fast block and a slow block are initiated after the first sperm penetrates the egg.

3. The slow block involves the release of cortical granules from the egg, which leads to the lifting of the vitelline envelope away from the egg surface, forming a fertilization envelope that is impenetrable to other sperms.

4. The substance that attracts water into the space between the vitelline envelope and the egg surface, causing the envelope to lift away, is a macromolecule called hyalin.

5. Therefore, hyalin is the macromolecule that prevents polyspermy in sea urchins.

Glucose, cholesterol, and hyaluronic acid do not have this function.

Question

The correct answer is Hyalin.

Here's a step-by-step explanation:

1. Polyspermy is the fertilization of an egg by more than one sperm, which can lead to death of the embryo in many species, including sea urchins.

2. To prevent polyspermy, a fast block and a slow block are initiated after the first sperm penetrates the egg.

3. The slow block involves the release of cortical granules from the egg, which leads to the lifting of the vitelline envelope away from the egg surface, forming a fertilization envelope that is impenetrable to other sperms.

4. The substance that attracts water into the space between the vitelline envelope and the egg surface, causing the envelope to lift away, is a macromolecule called hyalin.

5. Therefore, hyalin is the macromolecule that prevents polyspermy in sea urchins.

Glucose, cholesterol, and hyaluronic acid do not have this function.

Knowee AI · Accepted Answer

The correct answer is Hyalin.

Here's a step-by-step explanation:

1. Polyspermy is the fertilization of an egg by more than one sperm, which can lead to death of the embryo in many species, including sea urchins.

2. To prevent polyspermy, a fast block and a slow block are initiated after the first sperm penetrates the egg.

3. The slow block involves the release of cortical granules from the egg, which leads to the lifting of the vitelline envelope away from the egg surface, forming a fertilization envelope that is impenetrable to other sperms.

4. The substance that attracts water into the space between the vitelline envelope and the egg surface, causing the envelope to lift away, is a macromolecule called hyalin.

5. Therefore, hyalin is the macromolecule that prevents polyspermy in sea urchins.

Glucose, cholesterol, and hyaluronic acid do not have this function.

Which of the following macromolecules attracts water into the space between the vitelline envelope and the egg surface, preventing polyspermy in sea urchins?Multiple choice question.HyalinGlucoseCholesterolHyaluronic acid

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