Test Your Knowledge - BIOLOGY MCQ PRACTICE
by Saksham Chaudhry : Paschim Vihar, New Delhi 110063 T: 01147244724, 9810315579
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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. A spore is
A. a commonly-used medicine for cultivating bacteria 
B. a common seaweed found in tropical regions 
C. a reproductive unit of plants, protozoa, and bacteria 
D. a pore in the human skin 

2. Occurrence of more than four spores from a spore mother cell is called
A. Polysiphony 
B. Polyembryony 
C. Polyspory 
D. Polyspermy 

3. The developing embryo is a hollow sphere of cells, one cell thick during the stage of
A. cleavage 
B. polar body 
C. gastrula 
D. blastula 

4. Which of the following fungi has been extensively used for genetical studies?
A. bread mo1d 
B. green mold 
C. pink bread mold 
D. mushroom 

5. Hemophilia, a human disease, is caused by
A. bacterial infection 
B. fungal infection 
C. mutant gene 
D. viral infection 

6. Krebs was awarded Nobel Prize in 1953 for explaining
A. Oxidation of cytoplasm 
B. Respiration chain 
C. ATP metabolism 
D. Energy forming process in the cell 

7. An aggregation of nerve cell bodies inside the CNS central nervous system is typically called a
A. colony 
B. nissl zone 
C. clone 
D. nucleus 

8. The average length of human pregnancy is
A. 34-36 weeks 
B. 36-38 week 
C. 38-40 weeks 
D. 34-40 weeks 

9. 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 

10. One of the digestive juices that lacks enzymes but aids digestion is
A. bile 
B. succus entericus 
C. chyme 
D. chyle 

11. Ptyalin is an enzyme produced in the
A. salivary glands 
B. pituitary glands 
C. thyroid glands 
D. pancreas 

12. The approximate percent of oxygen content in air is
A. 1 
B. 20 
C. 60 
D. 80 

13. A liverwort is
A. an animal parasite infecting the liver 
B. a land plant without differentiation into root, stem, and leaves 
C. a kind of bacterium infecting we liver 
D. a plant with its flowers shaped like the human liver 

14. In the heart of rabbit the bicuspid mitral valve is situated between
A. right ventricle and pulmonary aorta 
B. left auricle and left ventricle 
C. right auricle and right ventricle 
D. postcaval and right auricle 

15. which of the following sugars are components of cane sugar?
A. glucose and fructose 
B. glucose and galactose 
C. glucose and mannose 
D. glucose and ribose 

16. Which one of the following wavelengths of light is most effective in photosynthesis?
A. blue 
B. green 
C. orange 
D. yellow 

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

18. The number of chromosomes in a normal human cell is
A. 43 
B. 44 
C. 45 
D. 46 

19. The National Bureau of Plant Genetic Resources is located at
A. Bangalore 
B. Jammu 
C. New Delhi 
D. Shillong 

20. Which of the following is most important for the growth of children up to the age of 14
A. protein 
B. vitamins 
C. fat 
D. milk 

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