MCQs on Cell Organelles for ICAR (SRF or JRF) /ASRB /CSIR NET/BET Exams #1

 

1. Two functions of rough endoplasmic reticulum are to:
   (A) Detoxify and transport drugs
   (B) Modify and activate hormones
   (C) Synthesize and transport enzymes
   (D) Join with and hydrolyze food vacuoles

2. Most of the cell membrane is made from:
   (A) Steroids
   (B) Proteins
   (C) Phospholipids
   (D) Polysaccharides

3. Which organelle contains enzymes that digest old cells?
   (A) Nucleus
   (B) Ribosome
   (C) Lysosome
   (D) Golgi body

4. Specialized vacuoles containing molecules that catalyze the hydrolysis of macromolecules are:
   (A) Nucleoli
   (B) Ribosomes
   (C) Lysosomes
   (D) Chromosomes

5. Lysosomes can be expected to be present in large numbers in cells which:
   (A) Have cilia
   (B) Produce centrioles
   (C) Are actively dividing
   (D) Carry out phagocytosis

6. Microfilaments are composed mainly of protein:
   (A) Actin
   (B) Tubulin
   (C) Myosin
   (D) Pectin

7. The term cell was coined by:
   (A) Schwan
   (B) Robert Hook
   (C) De Bery
   (D) Tautam

8. The cell theory is not applicable to:
   (A) Bacteria
   (B) Fungi
   (C) Viruses
   (D) Algae

9. The membrane around the vacuole is called:
   (A) Tonoplast
   (B) Cytoplast
   (C) Amyloplast
   (D) Elioplast

10. Identify the non-membranous organelle:
    (A) Ribosome
    (B) ER
    (C) Nucleus
    (D) Chloroplast

11. The DNA–protein ratio in chromatin is:
    (A) 3:1
    (B) 2:1
    (C) 1:1
    (D) 4:1

12. Golgi apparatus is absent in:
    (A) Higher plants
    (B) Bacteria
    (C) Yeast
    (D) Bacteria & Blue-green algae

13. The term endoplasmic reticulum was coined by:
    (A) Reinert
    (B) Porter
    (C) Pomaret
    (D) Johnson

14. Lysosomes involved in extracellular digestion are present in:
    (A) Cardiac cell
    (B) Sperm
    (C) Zygote
    (D) All of the above

15. The plastid responsible for photosynthesis is:
    (A) Leucoplast
    (B) Chromoplast
    (C) Chloroplast
    (D) All of the above

16. Which of the following is abundant in green plants?
    (A) Chlorophyll A
    (B) Chlorophyll B
    (C) Carotene
    (D) Xanthophylls