Cell Structure and Organelles MCQs Quiz 5

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

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

 Nucleus

 Genetic code

 Chloroplast

 Mitochondria

2. Which organelle provides membrane sources for autophagosome formation?

 Nucleus

 Endoplasmic Reticulum

 Ribosome

 Cytoskeleton

3. The basic structural unit of chromatin is _______

 Nucleosome

 Centromere

 Chromatid

 Gene

4. Lysosomes are primarily involved in __________

 DNA replication

 ATP synthesis

 Intracellular digestion and recycling of biomolecules

 Protein folding

5. Endosomes are part of _______

 Protein system

 Endomembrane system

 DNA system

 Cytoskeleton

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

 Lipids

 Basic amino acids

 Acidic amino acids

 Carbohydrates

7. Cells are considered functional units because they _______

 Have membranes

 Contain DNA

 Contain proteins

 Perform metabolic activities

8. __________ is the selective autophagy of mitochondria

 Xenophagy

 Mitophagy

 Lipophagy

 Phagocytosis

9. Autophagy is primarily activated under which cellular condition?

 DNA replication phase

 Nutrient starvation or cellular stress

 Nutrient abundance

 High ATP levels

10. Euchromatin is characterized by __________

 Transcriptional inactivity

 Loose chromatin packing

 Dense chromatin packing

 Absence of DNA

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Cell Structure and Organelles MCQs Quiz 5

Cell Biology Multiple Choice Questions