Cell Structure and Organelles MCQs Quiz 5

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

1. Which organelle provides membrane sources for autophagosome formation?

 Ribosome

 Nucleus

 Endoplasmic Reticulum

 Cytoskeleton

2. __________ is the selective autophagy of mitochondria

 Mitophagy

 Xenophagy

 Phagocytosis

 Lipophagy

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

 Carbohydrates

 Basic amino acids

 Lipids

 Acidic amino acids

4. Cells are considered functional units because they _______

 Perform metabolic activities

 Contain DNA

 Have membranes

 Contain proteins

5. Autophagy is primarily activated under which cellular condition?

 Nutrient starvation or cellular stress

 Nutrient abundance

 DNA replication phase

 High ATP levels

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

 Chloroplast

 Nucleus

 Mitochondria

 Genetic code

7. Euchromatin is characterized by __________

 Dense chromatin packing

 Absence of DNA

 Transcriptional inactivity

 Loose chromatin packing

8. Endosomes are part of _______

 DNA system

 Protein system

 Endomembrane system

 Cytoskeleton

9. Lysosomes are primarily involved in __________

 Intracellular digestion and recycling of biomolecules

 Protein folding

 ATP synthesis

 DNA replication

10. The basic structural unit of chromatin is _______

 Chromatid

 Centromere

 Gene

 Nucleosome

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Cell Structure and Organelles MCQs Quiz 5

Cell Biology Multiple Choice Questions