Cell Structure and Organelles MCQs Quiz 5

Cell Structure and Organelles MCQs Quiz 5
Cell Biology Multiple Choice Questions

1. Endosomes are part of _______

 Cytoskeleton

 Endomembrane system

 Protein system

 DNA system

2. Lysosomes are primarily involved in __________

 DNA replication

 ATP synthesis

 Protein folding

 Intracellular digestion and recycling of biomolecules

3. The basic structural unit of chromatin is _______

 Nucleosome

 Centromere

 Gene

 Chromatid

4. Which feature is universally shared by cells of all known living organisms?

 Genetic code

 Nucleus

 Mitochondria

 Chloroplast

5. Histone proteins are characterized by a high content of _________

 Carbohydrates

 Basic amino acids

 Lipids

 Acidic amino acids

6. Euchromatin is characterized by __________

 Dense chromatin packing

 Absence of DNA

 Loose chromatin packing

 Transcriptional inactivity

7. Cells are considered functional units because they _______

 Have membranes

 Contain proteins

 Perform metabolic activities

 Contain DNA

8. __________ is the selective autophagy of mitochondria

 Lipophagy

 Phagocytosis

 Xenophagy

 Mitophagy

9. Which organelle provides membrane sources for autophagosome formation?

 Ribosome

 Cytoskeleton

 Nucleus

 Endoplasmic Reticulum

10. Autophagy is primarily activated under which cellular condition?

 High ATP levels

 Nutrient abundance

 DNA replication phase

 Nutrient starvation or cellular stress

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Cell Structure and Organelles MCQs Quiz 5

Cell Biology Multiple Choice Questions