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Question 6 • CMS 2026-2027 Biology CREDIT RECOVERY

Why is it important for scientists to develop a way to grow tissues that have a built-in system to supply blood?

Answer

A lack of blood flow determines the number of cell layers that can survive when they are transplanted.

A lack of blood flow determines the amount of culture medium that is needed to keep a tissue alive.

A lack of blood flow determines the types of tissues that can be grown in culture.

A lack of blood flow determines the amount of time a tissue can be kept alive in culture.

Explanation

Without blood vessels, oxygen and nutrients can only reach cells near the surface of a tissue, while waste products build up farther inside. This limits how many cell layers can stay alive after the tissue is transplanted. Therefore, the correct choice is D, which describes the limit on surviving cell layers.

AI-written and checked against the verified answer.

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