Plant Cells: Crash Course Biology #6

What do plants primarily use to create their own food and release oxygen?

• Soil nutrients and darkness

• Carbon dioxide, sunlight, and water

• Animal waste and shade

• Other plants and minerals

Which ancient plants formed vast forests that eventually turned into coal deposits?

• Angiosperms

• Green algae

• Scale trees

• Prokaryotes

What is the main difference between eukaryotic and prokaryotic cells?

• Eukaryotic cells are much smaller than prokaryotic cells.

• Prokaryotic cells have a cell wall, while eukaryotic cells do not.

• Eukaryotic cells have a nucleus, while prokaryotic cells do not.

• Prokaryotic cells can perform photosynthesis, but eukaryotic cells cannot.

What gives plant cells their rigid structure and protection, unlike animal cells?

• A flexible plasma membrane

• A large central vacuole

• A rigid cell wall

• Chloroplasts

What is the primary reason humans cannot obtain nutritional energy from cellulose and lignin?

• They are too strong and resistant to deterioration.

• Our digestive systems lack the specific bacteria needed to break them down.

• They are considered roughage and are not useful for our digestive system.

• The energy is released too quickly through oxidation, making it unusable.

Which statement accurately describes plastids and their role in plant cells?

• Plastids are organelles found in animal cells that store genetic information.

• Chloroplasts, a type of plastid, convert light energy from the sun into sugar and oxygen.

• Plastids are responsible for giving plant cells their rigid structure.

• Plastids and mitochondria evolved from fungi absorbed by plant cells.

What is the main function of the central vacuole in a plant cell?

• It acts as the control center, storing genetic information.

• It converts light energy into food and oxygen.

• It stores water and other compounds, creating turgor pressure to support the plant.

• It is primarily responsible for breaking down cellulose into glucose.

Which of the following structures are typically found in plant cells but not in animal cells?

• Nucleus, mitochondria, and cell membrane.

• Cell wall, chloroplasts, and a large central vacuole.

• Ribosomes, endoplasmic reticulum, and Golgi apparatus.

• Cytoplasm, DNA, and proteins.