Biology GK Questions Quiz-58

1141.Which one of the following is not a photosynthetic pigment ? (1) Chlorophyll  (2) Phycobilin (3) Carotenoid  (4) Anthocyanin Answer: 1141.(4) There are three basic classes of photosynthetic pigments: Chlorophylls (greenish pigments), Carotenoids (usually red, orange, or yellow pigments) and Phycobilins (water-soluble pigments found in the cytoplasm). Anthocyanins play no part in photosynthesis. 1142.Which of the following is a fibrous protein ? (1) Haemoglobin  (2) Albumin (3) Keratin  (4) Enzymes Answer: 1142.(3) Keratin is a family of fibrous structural proteins. It is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails. Another example of fibrous protein is collagen. 1143.Typhoid fever is caused by (1) Bacteria  (2) Virus (3) Protozoa  (4) Fungi Answer: 1143.(1) Typhoid fever is an infection that causes diarrhea and a rash. It is most commonly due to a type of bacterium called Salmonella typhi (S. typhi). S. typhi is sprea…