Test Your Knowledge - ZOOLOGY MCQ PRACTICE
by Saksham Chaudhry : Lancers Convent, Prashant Vihar, New Delhi 110085
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A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.
For each of the following multiple choice questions, choose the most appropriate answer :

1. Both corpus luteum and macula lutea are
A. Found in human ovaries 
B. A source of hormones 
C. Characterized by a yellow colour 
D. Contributory in maintaining pregnancy 

2. Which of the following men might have explained the auk's loss of the ability to fly with t'he following hypothesis? since the auk stopped using its wings, the wings became smaller, and this acquired trait was passed on to the offsprings
A. Darwin 
B. Mendel 
C. De Vries 
D. Lamarck 

3. Which cells have the shape of signet ring?
A. Mast cells 
B. Adipocytes 
C. Melanocytes 
D. Osteoblasts 

4. In which class of Echinodermata, a plurteus larva is formed?
A. Holothuroidea 
B. Asteroidea 
C. Echinoidea 
D. Crinoidea 

5. End product of anaerobic respiration is
A. Pyruvic acid 
B. Glucose 
C. Ethyl alcohol and CO2 
D. None of the above 

6. The reflex arc is of utmost importance to human beings. Which of the following is NOT a component of the reflex arc?
A. synapse 
B. medulla 
C. ventral horn cell effector 
D. dendrite receptor 

7. The stimulus that induces migration in animals is
A. chemotrophic 
B. hydroperiodic 
C. geotrophic 
D. photoperiodic 

8. Gaucher's disease is associated with
A. abnormal carbohydrate metabolism 
B. abnormal protein metabolism 
C. deficiency of ACTH 
D. abnormal fat metabolism 

9. The phase of menstrual cycle in humans that lasts for 7-8 days, is
A. Follicular phase 
B. Ovulatory phase 
C. Luteal phase 
D. Menstruation 

10. Which of the following is effective against mycoplasmal diseases
A. Chloramphenicol 
B. Penicillin 
C. Vanoomycine 
D. All the above 

11. An artificial pacemaker is implanted subcutanously and connected to the heart in patients
A. Having 90% blockage of the three main coronary arteries 
B. Having a very high blood pressure 
C. With iregularity in the heart rhythm 
D. Suffering from arteriosclerosis 

12. Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to
A. Vitamin A toxicity 
B. Kidney stones 
C. Hypercholesterolemia 
D. Urine laden with ketone bodies 

13. The contractile vacuole of protozoa functions to
A. remove surplus water 
B. secrete proteins 
C. regulate the pH of the intemal milieu 
D. digest food material 

14. Arthropods can be characterized by all of the following except
A. A hard exoskeleton 
B. A water vascular system 
C. Jointed appendages 
D. Moulting 

15. Which one of the following four glands is correctly matched with the accompanying description?
A. Thyroid Hyperactivity in young children causes cretinism 
B. Starts undergoing atrophy after puberty 
C. Secretes parathormone which promotes movement of calcium ions from blood into bones during calcification 
D. Pancreas Delta cells of the Islets of Langerhans secrete a hormone which stimulates glycolysis in liver 

16. Which one of the following four glands is correctly matched with the accompanying description ?
A. Pancreas - Delta cells of the Islets of Langerhans secrete a hormone which stimulates glycolysis in liver 
B. Parathyroid» ~ Secretes parathormone which promotes movement of calcium ions from blood into bones during calcification 
C. Thymus - starts undergoing atrophy alter puberty 
D. Thyroid - hyperactivity in young children causes cretinism 

17. Protective resemblance of animals with their environment and background is
A. batesian 
B. mimesis 
C. Mullerian mimicry 
D. mimicry 

18. Drinking of mineral water with very low levels of pesticides about 0.02 ppm for long periods may
A. Produce immunity against mosquito 
B. Cause leukemia blood cancer in most people 
C. Cause cancer of the intestine 
D. Lead to accumulation of pesticide residue in body fat 

19. The primitive condition of the cyclostomata is indicated by their
A. asexual reproduction 
B. jawless mouth 
C. possession of scales 
D. toothless jaws 

20. The functional role an organism plays in a community is referred to as its
A. niche 
B. home range 
C. habitat 
D. ecosystem 

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