Top 1000+ Solved Biology (GK) MCQ Questions Answer
Q. A molecule in plants comparable to haemoglobin in animals is –
a. Cytochrome
b. Cellulose
c. Chlorophyll
d. Carotene
Q. An Antigen is –
a. the result of Antibody
b. the opposite of Antibody
c. the stimulus for Antibody formation
d. the residue of an Antibody
Q. Blood does not coagulate inside the body due to the presence of –
a. Plasma
b. Haemoglobin
c. Heparin
d. Fibrin
Q. Leech is an ectoparasite on cattle, which is –
a. Carnivorous
b. Omnivorous
c. Sangu1omus
d. Herbivorous
Q. Blood pressure may be increased by the excessive secretion of
a. Thyroxine
b. Testosterone
c. Estradiol
d. Estrol
Q. The Particulate Matter (PM-10) exhaled from the polluted atmosphere is often filtered out during the process of
a. Coughing
b. Sneezing
c. A and B
d. Urination
Q. Which of the following organelles are called the Protein Factories of the cell?
a. Chloroplasts
b. Lysosomes
c. Mitochondria
d. Ribosomes
Q. Which of the following structures present in mammalian skin directly helps in keeping the body warm?
a. Pigmented cells
b. Sweat glands
c. Lymph vessels
d. Blood capillaries
Q. Crude oil is sometimes termed sweet because it is –
a. sweet in taste due to dissolved sugars
b. mildly sweet due to low sulphur content
c. less acidic
d. less alkaline
Q. In coriander, the useful parts are –
a. roots & leaves
b. leaves & flowers
c. leaves & dried fruits
d. flowers & dried fruits
Q. Which of the following enzymes aids in coagulation of blood?
a. Tryptase
b. Pepsin
c. Rennin
d. Amylase
Q. Mushroom cultivation is not useful in –
a. Biogas production
b. Biological control of crop diseases
c. Recycling of agricultural wastes
d. Preventing cancer