BIOLOGY(WHOLE TOPIC)

BIOLOGY(Whole Topic)

1. who discovered and coined the term cell

a. Hooke, Harvey b. Hooked c. Hooke, Leeuwenhoek d. Schleiden, Schwann

2. A fish thrives better in an aquarium if green plants are growing in it. This is because

a. They can eat plants for their survival b. They like green surroundings

c. They get more oxygen d. They inhale CO2 released by plants

3. Agrostology is cultivation of

a. Crops b. Grasses c. Fruits d. None of these

4. Viruses are believed to be

a. Living organisms b. Non living entities

c. A transitional group between livings and non livings

d. Livings that have lost power of multiplication.

5. Who disproved abiogenesis by using microbes in his experiments with swan neck flasks??

a. Redi b. Spallanzani c. Pasteur d. Haldan

6. Who coined the term cell?

a. Janssen and Janssen b. Hooke c. Leeuwenhoek d. Schleiden Schwann.

7. Ribosomes can be observed in a cell only under

a. Light microscope b. Electron microscope c. Both of these d. None of these

8. A micelle is made up of

a. 250 microfibrils b. 100 cellulose chains c. 20 macrofibrils

d. 3000 cellulose chains

9. Suberin is a fatty substance and is impermeable to water. It forms covering on dead tissues

and is meant for

a. reducing transpiration b. protection from infection c. Providing stiffness

d. all correct

10. A phospholipid molecule is amphipathic and produces 2 layers coming in contact with H2O.

The head of phospholipid molecule is

a. at the outer surface b. Between the surfaces c. at an angle of 400

d. Embedded in protein molecules

11.Which is not having high energy phosphate bond?

a. Creatine phosphate b. GTP c. ATP d. AMP

12. ATP on hydrolysis yields

a. 7.3 Kcal b. 6.8 Kcal c. 11 Kcal d. 9 Kcal

13. Which is must for ATP synthesis

a. Cu++ and Ca++ b. Ca++ and K+ cNa+ and K+ d. N and P

14. Most effective pH for pepsin, typsin and amylase is

a. 2,8,5 and 7 b. 7, 8, 5 and 2 c. 6 to 7.5 d. All wrong

15. Lock and key theory (Template theory) of enzyme action was given by

a. Buchner b. Fischer c. Koshland d. Umberger.

16. The value of Km ( Michaelis- Menten constant) varies from 10-1 to 10-6 M but for allosteric

enzymes, there is no constant Km .value This Km is

a. Substrate concentration at which the reaction attains (1/2V max)

b. Enzyme concentration at which the reaction attains 1/2 V max

c. End product concentration at which reaction attains 1/2 V max

d. None of the above statements is correct.

17. Who demonstrated that animals take in O2 from air and give out CO2 + H2O?

a. Dutrochet b. Lavoisier c. Ingenhouz d. Sachs.

18. How many stages an aerobic breakdown of glucose requires?

a. 3 b. 4 c. 2 d. 1

19. Enzymes of glycolysis are restricted in

a. Cytosol b. Matrix of Mitochondira c. Glyoxysomes d. Anywhere in cell

20. The cell division was first studied by

a. Strasburger b. W. Flemming c. Wini Warter d. Farmer and Moore.

21. Number of meiosis required to produce 4 fruits of Banana or Rice

a. 4 b. 1 c. 5 d. 8

22. Nuclear membrane disappears at late psrophase and reappears at the end of telophase.

From where do these nuclear membranes arise?

a. Synthesized in cytoplasm b. Synthesized in nucleus c. From ER & old nuclear

membrane pieces d. From NOR

23. Protista are found chiefly in

a. Soil b. Water c. On hosts d. Air

24. Animals are mainly

a. Saprozoic b. Parasitic c. Autotrophic d. Holozoic

25. Mark the odd one in the following

a. Family b. Cohort c. Taxon d. Species


ANSWERS

1. b 2. c 3. b 4. c 5. c 6. b 7. b 8. b 9. d 10. a

11. d 12. a 13. d 14. a 15. b 16. a 17. b 18. b 19. a 20. a

21. c 22. c 23. b 24. d 25. c