AP Biology Unit 2 Review

Front

During osmosis, water always moves from an area of ____ solute concentration to ____ solute concentration.

Back

low, high

Front

Which organelle produces the energy a cell needs to carry out its function?

Back

Mitochondria

Front

What is the ratio equivalent to 24 : 8?

Back

3 : 1

Front

What is the primary role of aquaporins?

Back

To transport water across the membrane.

Front

_____ and _____ are organelles that arose from endosymbiosis.

Back

mitochondria and chloroplasts

Front

Define osmosis.

Back

The movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the function of mitochondria?

Back

To produce ATP, the energy currency of the cell, through cellular respiration.

Front

What is endosymbiosis?

Back

A theory that explains how certain organelles, like mitochondria and chloroplasts, originated from free-living prokaryotes that were engulfed by ancestral eukaryotic cells.

Front

What is the structure of a cell membrane?

Back

A phospholipid bilayer with embedded proteins, cholesterol, and carbohydrates.

Front

What is the function of chloroplasts?

Back

To conduct photosynthesis, converting light energy into chemical energy in the form of glucose.