. Name the largest cell
Ostrich egg
Required
2. Sponge is easily compressed but it is solid because it has
both A and B
fixed volume
fixed shape and size
It is not solid
Required
3. Amount of water vapour present in air is called
hydration
hydrolysis
wind
humidity
Required
4. In uniform motion
Speed is constant
acceleration is constant
distance is constant
none of these
Required
5. Slope of distance - time graph gives
speed
accelaration
distance
time
Required
6. Nucleus is surrounded by a membrane known as _________ .
Required
7. ________ are known as kitchen of the cell.
Required
8. Area of speed -time graph gives
speed
distance
plane
accelaration
Required
9. When a solid melts it's temperature
first increases then decreases
remains same
decreases
increases
Required
10. Which of the following is not a sublime
solid CO2 (Carbon dioxide)
nephthalene
butene
camphor
Required
11. The endoplasmic reticulum is rough because of
lysosome
dictyosomes
peroxisome
ribosome
Required
12. The powerhouse of a cell is
nucleolus
lysosome
mitochondrion
nucleus
Required
13. The distance-time graph of uniform motion is always
straight line parallel to time axis
straight line parallel to distance axis
Not a straight line
straight line in any direction except option C
Required
14. A gas can be liquifed by
decreasing pressure only
increasing temperature and decreasing pressure
increasing temperature only
increasing pressure and decreasing temperature
Required
15. Name the scientist who discovered cell.
Robert Brown
Robert Hooke
Christian de Duve
Antonie van Leeuwenhoek
Required
16. Name the smallest cell
Required
17. The plasma membrane is made up of
carbohydrates and proteins
cellulose
lipids and proteins
suberin and lipids
Required
18. Evaporation occurs
temperature below boiling point
at boiling point
temperature above boiling point
all of the above
Required
19. Scalar quantities can be discribed by
magnitude and direction both
magnitude only
none of these
direction only
Required
20. Velocity will decrease when accelaration is
0
positive
negative
1
Required
21. The cell organelle involved in the formation of lysosome is
Golgi complex
endoplasmic reticulum
mitochondrion
plastids
Required
22. Intermixing of particles of two different types of matter on their own is called
dissociation
diffraction
diffusion
decomposition
Required
23. Distance is always
greater than or equal to the displacement
less than the displacement
less than or equal to the displacement
greater than the displacement
Required
24. Rate of change of velocity with respect to time is called
accelaration
distance
speed
force
Required
25. Rate of evaporation increases by
increasing temperature
increasing surface area
decreasing wind speed
increasing humidity
Answers
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Answer:
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Answer:
1. ostrich egg
2. both a and b
3. humidity
4. speed is constant
5. speed
6. nuclear membrane
7. plastids
8. acceleration
9. increases
10. butene
11. ribosome
12. mitochondrion
13. straight line in any direction except option C
14. increasing temperature and decreasing pressure
15. Robert Hooke
16. Mycoplasma
17. lipids and proteins
18. temperature above boiling point
20. negative
21. endoplasmic reticulum
22. diffusion
23. greater than or equal to the displacement
24. accelaration
25. increasing temperature
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