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

 Genetic code

 Nucleus

 Mitochondria

 Chloroplast

3. __________ is the selective autophagy of mitochondria

 Lipophagy

 Phagocytosis

 Mitophagy

 Xenophagy

4. The basic structural unit of chromatin is _______

 Gene

 Chromatid

 Centromere

 Nucleosome

5. Cells are considered functional units because they _______

 Contain proteins

 Contain DNA

 Have membranes

 Perform metabolic activities

6. Autophagy is primarily activated under which cellular condition?

 Nutrient abundance

 High ATP levels

 DNA replication phase

 Nutrient starvation or cellular stress

7. Endosomes are part of _______

 DNA system

 Endomembrane system

 Protein system

 Cytoskeleton

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

 Lipids

 Basic amino acids

 Carbohydrates

 Acidic amino acids

9. Which organelle provides membrane sources for autophagosome formation?

 Cytoskeleton

 Endoplasmic Reticulum

 Nucleus

 Ribosome

10. Lysosomes are primarily involved in __________

 DNA replication

 Intracellular digestion and recycling of biomolecules

 Protein folding

 ATP synthesis

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Cell Structure and Organelles MCQs Quiz 5

Cell Biology Multiple Choice Questions