GameChanger Academy

Cytology

1. Tools used in Cytology

2. Cell Biology

3. Cell cycle

4. Biomolecules

Genetics

5. Introduction

6. Inheritance

7. Mutation and Polypoidy

Plant Anatomy

8. Plant Anatomy

Plant Physiology

10. Respiration

11. Photosynthesis

12. Growth and Growth hormone

13. Mode of nutrition and Habitat in Plants

Classification and Biodiversity

14. Classification

15. Virus

16. Bacteria

17. Thallophyta

18. Bryophyta

19. Pteridophyta

20. Gymnosperm

21. Reproduction

22. Morphology of Angiosperm

Taxonomy, Ecology and Application of biology

23. Taxonomy

24. Ecology

25. Application of Biology

Plant Anatomy

1. Plasmolysis in plant cells occur when they are placed in: [IOM 1998]

[IOM 1998]

Isotonic solution
Hypertonic solution
Hypotonic
Distilled water

2. Fertilizers can kill plants due to: [IOM 1996]

[IOM 1996]

Endosmosis
Exosmosis
Plasmolysis
None

3. When the fluid outside a cell has greater concentration of a given molecule than the fluid inside the cell, the external fluid is: [BPKIHS 2004]

[BPKIHS 2004]

Isotonic
Hypertonic
Hypotonic
Ultratonic

4. The process of imbibition can be noticed when: [BPKIHS 2004]

[BPKIHS 2004]

Rubber is dipped in saturated solution
Rubber is dipped in ether
Rubber is dipped in water
Rubber is dipped in dilute acetic acid

5. An Amoeba survives in a hypotonic solution that destroys a human RBC. It is due to [BPKIHS 2004]

[BPKIHS 2004]

Membrane permeability of Amoeba is 100 times less permeable to H_2 O than the memebrane of RBC
Amoeba has water expelling contractile vacuoles
Both (a) and (b) are correct
Both are wrong

6. Imbibition demonstrates the process of: [BPKIHS 2006]

[BPKIHS 2006]

Absorption
Adsorption
Osmosis
Repulsion

7. When a cell is fully turgid its: [BPKIHS 1997]

[BPKIHS 1997]

SP=TP
DPD=0
OP=0
DPD=OP

8. The turgidity of the cell is maintained by: [MOE 2008]

[MOE 2008]

9. Plasmolysis is defined as: [MOE 2063]

[MOE 2063]

Process of throwing out water from cell
Shrinkage of protoplasm
Process of intake of water by cell
Process of absorption of water

10. Selective permeability identifies the process of: [MOE 2062]

[MOE 2062]

Imbibition
Diffusion
Osmosis
Plasmolysis

11. Imbibition theory for ascent of sap was given by: [MOE 2000]

[MOE 2000]

Sachs
J.C. Bose
Dixon and Jolly
Strasburger

12. Plant absorb water by: [MOE 2065]

[MOE 2065]

Root cap
Root hair
Zone of maturation
Zone of elongation

13. Transpiration is high during following condition: [IOM 2007]

[IOM 2007]

Low temperature and High humidity
High temperature and Low humidity
High humidity
High water in soil

14. Potometer is used to measure: [IOM 2006]

[IOM 2006]

Transpiration
Respiration
Photosynthesis
Growth of plants

15. Out of water absorbed by plants, water actually used by them is: [IOM 1997]

[IOM 1997]

1-2%
3-5%
20-285
90-95%

16. Opening of the stomata is because of: [IOM 1997]

[IOM 1997]

Starch forming in guard cell
Presence of CO_2 in the atmosphere
Presence of O_2 in the atmosphere
Turgidity of the guard cell

17. K+ exchange theory is concerned with: [IOM 1997]

[IOM 1997]

Photosynthesis
Opening and Closing of stomata
Transpiration
Guttation

18. Transpiration is highest for ……… transpiration: [IOM 1996]

[IOM 1996]

Stomatal
Cuticular
Lenticular
All

19. Loss of water in the form of vapour from the living tissue of aerial parts of the plant is termed as: [BPKIHS 2006]

[BPKIHS 2006]

Evaporation
Transpiration
Wilting
Dehydration

20. Rate of transpiration is affected by humidity in: [BPKIHS 2000]

[BPKIHS 2000]

Land plant only
Water plants only
Both
None

21. The pores specialized for guttation in plants are called: [BPKIHS 2001]

[BPKIHS 2001]

Lenticels
Stomata
Hydathodes
Guard cells

22. Cells in the root having power of division: [BPKIHS 2003]

[BPKIHS 2003]

Mucilage cells
Meristematic cells
Hypocotyl cells
Aerophoric cells

23. Which one keeps its stomata open during night and closed during day? [BPKIHS 2004]

[BPKIHS 2004]

Cactus
Water lily
Ivy
Hibiscus

24. The rate of transpiration during storm is [BPKIHS 1995]

[BPKIHS 1995]

Very high
High
Low
Nil

25. There is accumulation of water drops at the leaf margin of Colocasia early in the morning, this is the result of [BPKIHS 1996]

[BPKIHS 1996]

Transpiration
Guttation
Respiration
None

26. If a plant kept in air free of CO_2 [BPKIHS 1998]

[BPKIHS 1998]

Stomata will open
Stomata will close
Stomata open and close alternatively
Stomata will not be affected

27. The translocation of food in plants occurs in the form of: [IE 2001]

[IE 2001]

Glucose
Starch
Sucrose
Galactose

28. Who proposed the 'Cohesion-Tension' and 'Transpiration pull theory'? [MOE 2062]

[MOE 2062]

J.C. Bose
Dixon and Jolly
Munch
Ganong

29. Root pressure is maximum when: [MOE 2062]

[MOE 2062]

Transpiration is slow and absorption is high
Transpiration is slow and absorption is slow
Transpiration is high and absorption is slow
Transpiration is high and absorption is high

30. The nature of dry cobalt chloride paper which is used in transpiration is: [MOE 2058]

[MOE 2058]

Deep red
Blue
Pink
Green

31. Minute pore-like opening found in cork that help in exchange of gases are called: [MOE 2052]

[MOE 2052]

Stomata
Hydathodes
Lenticels
None

32. The region just behind the root apex is: [MOE 2061]

[MOE 2061]

Maturation zone
Zone of elongation
Zone of division
Zone of differentiation

33. The maximum amount of solute present in the phloem sap is: [IE 2002]

[IE 2002]

Potassium ions
Starch
Sucrose
Glucose

34. In roots, the tissue which helps in the absorption of water and minerals is: [IE 2002]

[IE 2002]

Epidermal layer
Parenchyma
Collenchyma
Sclerenchyma

35. Root tip is more distant than any other apical part of plant due to: [IE 2005]

[IE 2005]

Pressure of water vacuoles
Triploid nuclei
Thick cell wall
Small size

36. The lowest water potential in the xylem are in the: [IE 2007]

[IE 2007]

Root hairs
Vascular cylinder of root
Tracheids of the stem
Leaves

37. Cell wall enlarges if kept in: [IE 2008]

[IE 2008]

Hypotonic solution
Hypertonic solution
Isotonic solution
Osmotic solution

38. Chlorophyll contains which metal ion: [IE 2008]

[IE 2008]

Al^(3+)
Mg^(2+)
Mn^(2+)
Fe

39. A micronutrient absorbed by foliage is [IE 2009]

[IE 2009]

Zinc
Phosphorus
Aluminium
Boron

40. The immediate effect of destruction of ATP inside cell is in [BPKIHS 2016]

[BPKIHS 2016]

Passive transport
Diffusion of gases
Active transport
None

41. When a plant cell is kept in water, water continues to move inside until the [BPKIHS 2016]

[BPKIHS 2016]

Water potential in both sides becomes same
Diffusion pressure in both sides becomes same
Salt concentration in both side becomes same
None

42. Bacteria can't grow in honey because [BPKIHS 2016]

[BPKIHS 2016]

Honey contains antibiotics
They get suffocation
They get plasmolysed
They can't consume

43. Common disease caused due to deficiency of P, K, Mg, Mn, Ca "and" N is [BPKIHS 2014]

[BPKIHS 2014]

Leaf tip curl
Grey spot in leaves
Wilting of leaf tip
Necrosis

44. Which of the following becomes difficult in absence of ATP? [BPKIHS 2012]

[BPKIHS 2012]

Osmosis
Active transport
Passive transport
None

45. Which of the following factors does not affect osmosis? [BPKIHS 2010]

[BPKIHS 2010]

Pressure
Temperature
Concentration
Density

46. The device which is used to nullify the effect of gravity is called [IOM 2014]

[IOM 2014]

Photometer
Auxanometer
Potometer
Clinostat

47. Plasmolysis is caused when cell is placed in [IOM 2016]

[IOM 2016]

Hyperthermic
Hypertonic
Hypotonic
None

48. Site of evaporation of water is [IOM 2012]

[IOM 2012]

Lenticels
Walls of mesophyll cell
Stomata
Epidermis

49. For plasmolysis, cell is placed in [IOM 2012]

[IOM 2012]

Isotonic
Hypothermic
Hypotonic
Hyperthermic

50. The cell becomes turgid when placed in [MOE 2014]

[MOE 2014]

Hypertonic solution
Isotonic solution
In air
Hypotonic solution

51. Ascent of sap in plants is due to [MOE 2014]

[MOE 2014]

Osmosis
Diffusion
Transpiration
Guttation

52. Guttation is the manifestation of [MOE 2012]

[MOE 2012]

Root pressure
Atmospheric pressure
Vapour pressure
Increased transpiration