2024 AP Biology Ch 7 Cell Membrane & Transport

Front

What is the function of free ribosomes in a cell?

Back

Free ribosomes synthesize cytosolic proteins that function within the cytosol.

Front

What organelle is responsible for ATP synthesis and contains highly folded thylakoids?

Back

Chloroplasts are responsible for ATP synthesis and contain highly folded thylakoids.

Front

What molecule is necessary for myosin to release actin during muscle contraction?

Back

ATP is necessary for myosin to release actin.

Front

How does passive transport move substances across a membrane?

Back

Passive transport moves substances from high to low concentration.

Front

What is the significance of surface area to volume ratio in cells?

Back

A higher surface area to volume ratio allows for more efficient exchange of materials with the environment.

Front

What is the primary role of the Golgi apparatus in a cell?

Back

The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.

Front

What is the difference between rough ER and smooth ER?

Back

Rough ER is studded with ribosomes and synthesizes proteins, while smooth ER is involved in lipid synthesis and detoxification.

Front

What is osmosis?

Back

Osmosis is the passive movement of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the role of ATP in cellular processes?

Back

ATP serves as the primary energy currency of the cell, providing energy for various biochemical reactions.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of passive transport of molecules across a membrane via specific transmembrane integral proteins.