Biology MCQS

11. Which is involved in lipid synthesis?
A. RER
B. SER
C. Lysosomes
D. Peroxisomes

12. Ribosomes were first studied by:
A. Robert Hooke
B. Robert Brown
C. Palade
D. Antony Van Leeuwenhoek

13. Eukaryotic ribosomes are composed of almost equal amount of RNA and:
A. DNA
B. Lipids
C. Carbohydrates
D. Proteins

14. The two Ribosomal subunits on attachment with each other require:
A. K+ Ion
B. Ca++ Ion
C. Mg++ Ion
D. Fe++ Ion

15. Which one of the following in the leaf glands of some insectivorous Plants secretes sticky slims and enzymes which trap and digest the insects:
A. Golgi apparatus
B. Lysosomes
C. Glyoximes
D. Endoplasmic reticulum

16. The following is involved in autophagy:
A. Peroxisomes
B. Ribosomes
C. Lysosomes
D. Glyoximes

17. Blood clotting factor in a human body is produced by the:
(A) Hemoglobin
(B) white blood cells
(C) Platelets
(D) Cyloples

18. What is the function of the heart pacemaker?
A. It decreases the heart beat
B. It regulates the heart beat
C. It increases the heart beat
D. It accelerates blood supply to the heart

19. The disease Diphtheria affects the ———— in the human body.
A. Kidneys
B. Intestines
C. Throats
D. Joints

20. Which Vitamin helps blood clotting?
A. Vitamin D
B. Vitamin E
C. Vitamin A
D. Vitamin K