In the Center of the Embryo Sac Are The

question 41

Multiple Choice

In the center of the embryo sac are the:

• A)ovules.
• B)synergids.
• C)eggs.
• D)polar nuclei.
• E)antipodals.

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Definitions:

Active Transport

The movement of molecules across a cell membrane from a lower to a higher concentration, requiring energy.

Mitochondria

Organelles within cells that are the sites of aerobic respiration, providing energy for cellular functions.

Concentration Gradient

A variation in the concentration of a substance across a distance, leading to the movement of particles from an area of high concentration to one of lower concentration.

Carrier Molecules

Proteins that facilitate the transport of substances across a cell membrane without modification of the transported substance.