Biology GK MCQ Questions SET-6 with Answers free PDF Download

We have provide GK MCQ Questions for Biology GK questions with Answers free PDF. Download based on the important concepts and topics given in the textbook as per new exam pattern. All these Biology GK MCQs Multiple Choice Questions with Answers provided here with detailed solutions. Use them as reference and be confident in the actual exam by practicing the MCQ Quiz Questions of Biology GK as much as you can. Each question has four options followed by the right answer.

MCQ Questions for Biology GK with Answers

Q1. Karl Landsteiner discovered

(i) Blood corpuscles
(ii) Blood groups
(iii) Blood vessels
(iv) Proteins in Blood

(ii) Blood groups

Q2. Which is a homologous chromosome pair?

(i) Tetrad
(ii) Gamate
(iii) Chromatid
(iv) Zygote

(i) Tetrad

Q3. When the diaphragm and external intercostal muscles contract,

(i) The volume of the thorax decreases
(ii) The volume of the lungs decreases
(iii) The volume of the thorax increases
(iv) The lungs shrink

(iii) The volume of the thorax increases

Q4. In plants which one of the following tissues is dead ?

(i) Parenchyma
(ii) Collenchyma
(iii) Sclerenchyma
(iv) Phloem

(iii) Sclerenchyma

Q5. The bone humerus is found in

(i) Thigh
(ii) Upper arm
(iii) Fore arm
(iv) Leg

(ii) Upper arm

Q6. The plant body not differentiated into root, shoot and stem is termed as

(i) Rihazome
(ii) Thallus
(iii) Lysosome
(iv) None of the above

(ii) Thallus

Q7. Infection of salivary glands by a virus leads to

(i) Tetanus
(ii) Mumps
(iii) Pyorrhoea
(iv) Ulcers

(ii) Mumps

Q8. Lichens are the best indicator of

(i) Air pollution
(ii) Water pollution
(iii) Soil pollution
(iv) Noise pollution

(i) Air pollution

Q9. Which among the following does not have a cell wall?

(i) Euglena
(ii) Paramecium
(iii) Gonyaulax
(iv) Mycoplasma

(iv) Mycoplasma

Q10. In 1910, who proved the idea of W.S.Sutton that genes are located on chromosomes?

(i) T.H.Morgan
(ii) De Duve
(iii) Palade
(iv) Waldeyer

(i) T.H.Morgan

Q11. What is the effect of oversecretion of hormone from pituitary gland?

(i) Increase growth in length
(ii) Unbalanced development of body
(iii) Body became curve
(iv) None of the above

(i) Increase growth in length

Q12. The colour of Hemoglobin is

(i) Red
(ii) Yellow
(iii) White
(iv) Colorless

(i) Red

Q13. Pollen grains in plants are produced in

(i) roots
(ii) leaves
(iii) flower
(iv) stem

(iii) flower

Q14. Movement of cell against concentration gradient is called

(i) osmosis
(ii) active transport
(iii) diffusion
(iv) passive transport

(ii) active transport

Q15. Enzyme secreted by stomach digests the food but stomach is not digested by this digestive juice because

(i) Wall of stomach is lined with mucus
(ii) This is made up of hard cells
(iii) It is made up of steel
(iv) None of the above

(i) Wall of stomach is lined with mucus

Q16. Plant bends towards the source of light on account of the movement of curvature known as

(i) geotropism
(ii) thigmotropism
(iii) chemotropism
(iv) phototropism

(iv) phototropism

Q17. Mammalian lungs have an enormous number of minute alveoli (air sacs). This provides:

(i) more surface area for diffusion of gases
(ii) more space for increasing the volume of inspired air
(iii) more nerve supply to keep the lungs working
(iv) more spongy texture for keeping lung in proper shape

(i) more surface area for diffusion of gases

Q18. The kidneys are stimulated to produce renin

(i) When the pH of the urine decreases
(ii) When the specific gravity of urine rises above 1.10
(iii) When the peritubular capillaries are dilated
(iv) By a decrease in the blood pressure

(iv) By a decrease in the blood pressure

Q19. Poison glands of snakes are homologous to

(i) electric organs of fishes
(ii) stings of rays
(iii) sebaceous glands of mammals
(iv) salivary glands of vertebrates

(iv) salivary glands of vertebrates

Q20. The nutritional supplements Spirulina, Chorella and the Vitamin-C supplement, Dunaliella are actually :

(i) Algae
(ii) Lichens
(iii) Probiotics
(iv) Bryophytes

(i) Algae

Q21. Eustachian Tube is located in which part of human body?

(i) Nose
(ii) Ear
(iii) Eyes
(iv) Throat

(ii) Ear

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