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?

 High ATP levels

 Nutrient starvation or cellular stress

 DNA replication phase

 Nutrient abundance

2. Lysosomes are primarily involved in __________

 ATP synthesis

 Protein folding

 Intracellular digestion and recycling of biomolecules

 DNA replication

3. __________ is the selective autophagy of mitochondria

 Mitophagy

 Lipophagy

 Phagocytosis

 Xenophagy

4. The basic structural unit of chromatin is _______

 Gene

 Chromatid

 Centromere

 Nucleosome

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

 Nucleus

 Genetic code

 Chloroplast

 Mitochondria

6. Which organelle provides membrane sources for autophagosome formation?

 Endoplasmic Reticulum

 Ribosome

 Cytoskeleton

 Nucleus

7. Cells are considered functional units because they _______

 Contain proteins

 Perform metabolic activities

 Have membranes

 Contain DNA

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

 Lipids

 Acidic amino acids

 Basic amino acids

 Carbohydrates

9. Euchromatin is characterized by __________

 Transcriptional inactivity

 Absence of DNA

 Loose chromatin packing

 Dense chromatin packing

10. Endosomes are part of _______

 DNA system

 Endomembrane system

 Protein system

 Cytoskeleton

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Cell Structure and Organelles MCQs Quiz 5

Cell Biology Multiple Choice Questions