Cell Structure and Organelles MCQs Quiz 5

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

1. Autophagy is primarily activated under which cellular condition?

 Nutrient abundance

 High ATP levels

 DNA replication phase

 Nutrient starvation or cellular stress

2. __________ is the selective autophagy of mitochondria

 Lipophagy

 Phagocytosis

 Mitophagy

 Xenophagy

3. Lysosomes are primarily involved in __________

 DNA replication

 Intracellular digestion and recycling of biomolecules

 Protein folding

 ATP synthesis

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

 Genetic code

 Chloroplast

 Mitochondria

 Nucleus

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

 Acidic amino acids

 Lipids

 Carbohydrates

 Basic amino acids

6. Which organelle provides membrane sources for autophagosome formation?

 Cytoskeleton

 Ribosome

 Nucleus

 Endoplasmic Reticulum

7. Euchromatin is characterized by __________

 Absence of DNA

 Dense chromatin packing

 Loose chromatin packing

 Transcriptional inactivity

8. The basic structural unit of chromatin is _______

 Centromere

 Nucleosome

 Chromatid

 Gene

9. Cells are considered functional units because they _______

 Contain DNA

 Contain proteins

 Perform metabolic activities

 Have membranes

10. Endosomes are part of _______

 DNA system

 Cytoskeleton

 Endomembrane system

 Protein system

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Cell Structure and Organelles MCQs Quiz 5

Cell Biology Multiple Choice Questions