Year 9 - Understanding Cells and Organ Systems (level 8)

What is the basic unit of life according to cell theory?

• Atom

• Cell

• Tissue

• Organ

Which of the following is a specialised structure found in plant cells but not in animal cells?

• Mitochondria

• Ribosomes

• Chloroplasts

• Nucleus

What is the primary function of the mitochondria in a cell?

• Photosynthesis

• Protein synthesis

• Energy production

• DNA replication

Which organelle is responsible for protein synthesis?

• Ribosomes

• Vacuoles

• Chloroplasts

• Cell wall

What is the function of the cell membrane?

• Provides structural support

• Controls the movement of substances in and out of the cell

• Stores nutrients

• Produces energy

Which of the following structures contains the cell's genetic material?

• Cytoplasm

• Nucleus

• Cell wall

• Ribosomes

What is the main function of vacuoles in plant cells?

• Photosynthesis

• Storage of nutrients and waste products

• Protein synthesis

• Energy production

Which of the following is NOT a component of the cell theory?

• All living things are composed of cells

• Cells are the basic units of life

• All cells arise from pre-existing cells

• Cells can spontaneously generate

What is the role of chloroplasts in plant cells?

• Energy production

• Photosynthesis

• Protein synthesis

• DNA replication

Which of the following is a characteristic of multicellular organisms?

• Composed of a single cell

• Lack specialised structures

• Have specialised cells and tissues

• Do not have organ systems