Science- Biology Quiz on Cells and Ecosystems

Which organelle is correctly paired with its function?

• Mitochondrion – Photosynthesis

• Ribosome – Protein synthesis

• Chloroplast – Cellular respiration

• Nucleus – Lipid storage

Which feature distinguishes a plant cell from an animal cell?

• Presence of cytoplasm

• Presence of a cell wall composed of cellulose

• Presence of mitochondria

• Presence of a cell membrane

Root hair cells are specialised for water uptake because they have:

• A thick cell wall to prevent water loss

• A very large central vacuole for water storage

• A long, thin extension that increases surface area

• Chloroplasts to produce glucose for osmosis

Which statement about palisade mesophyll cells is correct?

• They contain many mitochondria to release energy during photosynthesis

• They have a large vacuole for storing starch

• They are located next to the lower epidermis

• They contain numerous chloroplasts to maximise light absorption

Which of the following is NOT one of the seven characteristics of living organisms?

• Respiration

• Excretion

• Circulation

• Sensitivity

Viruses are often considered non‐living because they:

• Lack of genetic material

• Cannot reproduce independently of a host cell

• Perform photosynthesis

• Undergo respiration autonomously

Which of these best defines a species?

• A group of organisms living in the same habitat

• A group of organisms that share the same diet

• A group of organisms that can interbreed to produce fertile offspring

• A group of organisms with identical DNA sequences

Which of the following is a correct pairing of tissue to function?

• Muscle tissue – Transports water in plants

• Palisade mesophyll tissue – Photosynthesis

• Epithelial tissue – Conducts nerve impulses

• Connective tissue – Captures light energy

Which pair of organisms correctly illustrates a food chain?

• Grass → Cow → Grasshopper → Hawk

• Maize → Hen → Snake → Eagle

• Mouse → Grass → Snake → Eagle

• Maple Tree → Deer → Sun → Wolf

Which describes the role of decomposers in an ecosystem?

• Producing energy from sunlight

• Breaking down dead organic matter and returning nutrients to soil

• Consuming producers to obtain energy

• Providing shelter for small animals