All the Following Are True of Companion Cells EXCEPT That

question 28

Multiple Choice

All the following are true of companion cells EXCEPT that they

• A) are connected to sieve- tube elements via plasmodesmata.
• B) cooperate with sieve- tube elements in conducting sugar- rich solutions.
• C) fuse together to form the sieve plates of sieve- tube elements.
• D) supply materials to repair the plasma membrane of sieve- tube elements.
• E) provide proteins and ATP to sieve- tube elements.

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Definitions:

Thymus

An unpaired organ located in the mediastinal cavity anterior to and above the heart.

Adrenal

Pertaining to adrenal glands, which are small glands located above the kidneys that produce hormones like adrenaline and cortisol.

Muscular System

The organ system that allows movement of the body, maintains posture, and circulates blood throughout the body through contraction.

Diabetes

A chronic condition that affects the way the body processes blood sugar (glucose), characterized by high blood sugar levels.