Cell Structure and Organelles MCQs Quiz 5

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

1. Euchromatin is characterized by __________

 Absence of DNA

 Dense chromatin packing

 Loose chromatin packing

 Transcriptional inactivity

2. Autophagy is primarily activated under which cellular condition?

 Nutrient abundance

 DNA replication phase

 High ATP levels

 Nutrient starvation or cellular stress

3. __________ is the selective autophagy of mitochondria

 Phagocytosis

 Lipophagy

 Mitophagy

 Xenophagy

4. Endosomes are part of _______

 Cytoskeleton

 Endomembrane system

 DNA system

 Protein system

5. The basic structural unit of chromatin is _______

 Gene

 Chromatid

 Centromere

 Nucleosome

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

 Lipids

 Basic amino acids

 Acidic amino acids

 Carbohydrates

7. Lysosomes are primarily involved in __________

 DNA replication

 ATP synthesis

 Protein folding

 Intracellular digestion and recycling of biomolecules

8. Cells are considered functional units because they _______

 Contain DNA

 Contain proteins

 Have membranes

 Perform metabolic activities

9. Which organelle provides membrane sources for autophagosome formation?

 Endoplasmic Reticulum

 Nucleus

 Ribosome

 Cytoskeleton

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

 Chloroplast

 Mitochondria

 Genetic code

 Nucleus

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Cell Structure and Organelles MCQs Quiz 5

Cell Biology Multiple Choice Questions