Exploring Cell Structures and Functions

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

• To store nutrients

• To provide structural support

• To conduct photosynthesis

• To transport water

Which organelle is responsible for photosynthesis in plant cells?

• Mitochondria

• Ribosome

• Chloroplast

• Nucleus

What is a key difference between animal and plant cells?

• Animal cells have a cell wall

• Plant cells have chloroplasts

• Animal cells have chloroplasts

• Plant cells lack a nucleus

Which of the following is a feature of prokaryotic cells?

• They have a nucleus

• They have membrane-bound organelles

• They lack a nucleus

• They have a large central vacuole

Eukaryotic cells are characterised by:

• The absence of a nucleus

• The presence of a nucleus

• The absence of ribosomes

• The presence of a cell wall

What is diffusion?

• Movement of water across a membrane

• Movement of particles from high to low concentration

• Movement of particles from low to high concentration

• Movement of particles against a concentration gradient

Osmosis specifically refers to the movement of:

• Solutes

• Water

• Proteins

• Lipids

Active transport requires:

• No energy

• Energy in the form of ATP

• Only passive diffusion

• Osmosis

Which part of the microscope is used to focus the image?

• Stage

• Objective lens

• Coarse adjustment knob

• Light source

Chromosomes are made up of:

• Lipids

• Proteins

• DNA

• Carbohydrates