Unit 3-Cell Structure and Function

Front

What is the primary function of chloroplasts in plant cells?

Back

Chloroplasts are responsible for photosynthesis, converting light energy into chemical energy in the form of glucose.

Front

What is endocytosis?

Back

Endocytosis is the process by which cells internalize substances from their external environment by engulfing them in a membrane.

Front

What is the function of the cell wall?

Back

The cell wall provides structural support and protection to the cell, maintaining its shape and preventing excessive water uptake.

Front

Define diffusion in the context of cellular processes.

Back

Diffusion is the movement of particles from an area of high concentration to an area of low concentration, resulting in an even distribution of particles.

Front

What is cytoplasm and what is its role in the cell?

Back

Cytoplasm is the gel-like fluid inside the cell that holds organelles in place and is the site for many metabolic reactions.

Front

What are the main differences between plant and animal cells?

Back

Plant cells have a cell wall, chloroplasts, and large central vacuoles, while animal cells do not have these structures.

Front

What is the role of the plasma membrane in a cell?

Back

The plasma membrane regulates what enters and exits the cell, maintaining homeostasis and protecting the cell's internal environment.

Front

Explain the process of osmosis.

Back

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

Front

What are organelles and why are they important?

Back

Organelles are specialized structures within a cell that perform distinct processes necessary for the cell's life and function.

Front

What is the significance of the nucleus in a cell?

Back

The nucleus contains the cell's genetic material (DNA) and controls cellular activities by regulating gene expression.