and Answers | Latest Version |
2025/2026 | Correct & Verified
Which organelle is responsible for producing ATP in eukaryotic cells?
A) Ribosome
✔✔B) Mitochondrion
C) Lysosome
D) Golgi apparatus
Which structure controls the movement of substances into and out of the cell?
A) Nucleus
✔✔B) Plasma membrane
C) Ribosome
D) Mitochondrion
Which process describes the movement of water across a semipermeable membrane?
A) Active transport
✔✔B) Osmosis
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,C) Diffusion
D) Endocytosis
Which type of RNA carries amino acids to the ribosome during protein synthesis?
A) mRNA
✔✔B) tRNA
C) rRNA
D) siRNA
Which organelle packages and ships proteins to their destinations?
A) Ribosome
B) Mitochondria
✔✔C) Golgi apparatus
D) Endoplasmic reticulum
What type of bond holds the two strands of DNA together?
✔✔A) Hydrogen bond
B) Ionic bond
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, C) Covalent bond
D) Peptide bond
Which phase of the cell cycle is characterized by DNA replication?
A) G1 phase
✔✔B) S phase
C) G2 phase
D) M phase
Which organelle contains digestive enzymes that break down waste?
A) Mitochondria
✔✔B) Lysosome
C) Ribosome
D) Nucleus
What is the main function of chloroplasts in plant cells?
A) Protein synthesis
B) DNA replication
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