Cell Structure & Organelles MCQs with Answers

The purpose of cell fractionation is to ?

• A.Measure the size of a single cell
• B.Observe living cells under a microscope
• C.Stain cells for better visibility
• D.Separate the organelles to determine their functions

The structure in a cell which differentiates between prokaryotes and eukaryotes is _?

• A.Cytoplasm
• B.Cell membrane
• C.Ribosome
• D.Nucleus

Special type of movement of specific substances through carrier protein is _?

• A.Osmosis
• B.Facilitated diffusion
• C.Active transport
• D.Simple diffusion

Which of the following triggers the cell's passage past the G2 checkpoint into mitosis?

• A.Cyclin D
• B.MPF
• C.p53 protein
• D.Cdk inhibitor

Each mole of ATP stores how much energy?

• A.5.5 kcal/mole
• B.7.3 kcal/mole
• C.9.2 kcal/mole
• D.10.1 kcal/mole

Nucleus is responsible for cell division because it contains nuclear material called?

• A.Cytoplasm
• B.Chromosomes
• C.Ribosomes
• D.Mitochondria

The final electron acceptor in respiratory electron transport chain in mitochondria is?

• A.NAD⁺
• B.FAD
• C.O₂
• D.Cytochrome c

In the bacterial cell, the DNA is found floating in the ?

• A.Nucleus
• B.Cytoplasm
• C.Mitochondria
• D.Cell membrane

The property of water that is important to biological membrane stability is ?

• A.Hydrophobic exclusion
• B.High specific heat capacity
• C.Cohesion and adhesion
• D.Universal solvent property

The function of centromere is _?

• A.Movement of chromosomes
• B.Protein synthesis
• C.Energy production
• D.Lipid storage