6 practice sets · Page 1 of 1
Which of the following statements about mitochondria is true?
Mitochondria produce energy in the form of ATP
Mitochondria are not membrane-bound
Mitochondria lack their own DNA
Mitochondria are found only in animal cells
Correct Answer: A — Mitochondria produce energy in the form of ATP
Explanation:
Mitochondria generate ATP and contain their own DNA.
Which organelle is present in animal cells but absent in most plant cells?
Lysosome
Chloroplast
Cell wall
Vacuole
Correct Answer: A — Lysosome
Explanation:
Lysosomes are commonly found in animal cells and are rare in plant cells.
What is the primary function of the Golgi apparatus?
Cellular respiration
Photosynthesis
Protein synthesis
Packaging and transport of materials
Correct Answer: D — Packaging and transport of materials
Explanation:
The Golgi apparatus modifies, packages, and transports proteins and lipids.
Which organelle is known as the powerhouse of the cell?
Golgi apparatus
Mitochondria
Ribosome
Nucleus
Correct Answer: B — Mitochondria
Explanation:
Mitochondria produce ATP, which supplies energy for cellular activities.
Which organelle is responsible for photosynthesis in plants?
Mitochondria
Ribosome
Chloroplast
Lysosome
Correct Answer: C — Chloroplast
Explanation:
Chloroplasts contain chlorophyll and carry out photosynthesis in plants.
Which part of the cell controls all its activities?
Cytoplasm
Nucleus
Plasma membrane
Mitochondria
Correct Answer: B — Nucleus
Explanation:
The nucleus contains genetic material and controls cellular activities.
