Cell Structure & Organelles MCQs with Answers

Ion carriers are located in _?

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

Sequence of physiological changes by which cell commit suicide?

• A.Necrosis
• B.Apoptosis
• C.Autophagy
• D.Metastasis

In mitochondrial electron transport chain, the oxidation of complex III and reduction of complex IV is mediated by ?

• A.Cytochrome-c
• B.Ubiquinone (Coenzyme Q)
• C.NADH dehydrogenase
• D.ATP synthase

Telophase events include _?

• A.Reformation of nuclear membrane
• B.Disappearance of spindle fibers
• C.Chromosomes decondense into chromatin
• D.All of these

Which molecule is the main energy currency of the cell produced in mitochondria?

• A.Glucose
• B.ATP
• C.NADH
• D.FADH₂

Nucleolus is mainly formed by ?

• A.Protein
• B.DNA
• C.RNA
• D.Lipids

Period of extensive metabolic activity, in which cell grows and enzymes are synthesized, is called?

• A.S phase
• B.G2 phase
• C.G1 phase
• D.M phase

Which structure have two residues?

• A.Ribosomes
• B.Lysosomes
• C.Mesosomes
• D.Centrosomes

The bulk movement of material into a cell by the formation of a vesicle is called?

• A.Exocytosis
• B.Endocytosis
• C.Osmosis
• D.Diffusion

Which of these are not embedded in the lipid bilayer at all?

• A.Integral proteins
• B.Peripheral proteins
• C.Transmembrane proteins
• D.Channel proteins