7th Grade Life Science Cells

Front

What is the function of the cell wall in plant cells?

Back

The cell wall provides structure and support to the plant cell, maintaining its shape and protecting it from external stress.

Front

What organelle is responsible for photosynthesis in plant cells?

Back

Chloroplasts are the organelles that use sunlight to produce food (glucose) for the plant through photosynthesis.

Front

What is the primary role of chloroplasts?

Back

Chloroplasts convert light energy into chemical energy in the form of glucose during photosynthesis.

Front

What is the cytoskeleton and what is its function?

Back

The cytoskeleton is a network of fibers that provides structural support, shape, and facilitates movement within the cell.

Front

What are the main components of the cell membrane?

Back

The cell membrane is primarily composed of a phospholipid bilayer, proteins, cholesterol, and carbohydrates.

Front

How do plant cells differ from animal cells in terms of organelles?

Back

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

Front

What is the role of the central vacuole in plant cells?

Back

The central vacuole stores nutrients, waste products, and helps maintain turgor pressure against the cell wall.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and organelles.

Front

What is the function of ribosomes in a cell?

Back

Ribosomes are responsible for protein synthesis, translating messenger RNA into polypeptide chains.

Front

What is the significance of the plasma membrane?

Back

The plasma membrane regulates the movement of substances in and out of the cell, maintaining homeostasis.