CHOOSE THE CORRECT ANSWER :-
1. The transfer of pollen from the anther to stigma is called
(a) Pollination
(b) Fertilization
(c) Adoption
(d) Diffusion
2. The fusion of female reproductive nucleus with the male reproductive nucleus
is known as
(a) Adoption
(b) Excretion
(c) Fertilization
(d) Regeneration
3. In yeasts reproduction occurs by
(a) fragmentation
(b) binary fission
(c) budding
(d) spore formation
4. Seeds of drumstick and maple are carried to long distances by wind because
they possess
(a) winged seeds
(b) large and hairy seeds
(c) long and ridged fruits
(d) spiny seeds
5. The eye of the potato plant is what
(a) the root is to any plant
(b) the bud is to a flower
(c) the bud is to Bryophyllum leaf
(d) the anther is to stamen
6. The ovaries of different flowers may contain
(a) only one ovule
(b) many ovules
(c) one to many ovules
(d) only two ovules
7. Vegetative propagation in potato takes place by
(a) leaves
(b) stem
(c) root
(d) seed
8. Lila observed that a pond with clear water was covered up with a green algae
within a week. By which method of reproduction did the algae spread so
rapidly ?
(a) Budding
(b) Sexual reproduction
(c) Fragmentation
(d) Pollination
9. Male reproductive part of a plant is
(a) pores
(b) pistil
(c) stamen
(d) ovary
10. Mature ovule forms
(a) buds
(b) endosperm
(c) seed
(d) fruit
11. A bus travels 54 km in 90 minutes. The speed of the bus is
(a) 0.6 m/s
(b) 10 m/s
(c) 5.4 m/s
(d) 3.6 m/s
12. Time period of a simple pendulum depends upon its
(a) weight of bob
(b) length
(c) both (a) and (b)
(d) None of these
13. Which of the following cannot be used for measurement of time?
(a) A leaking tap
(b) Simple pendulum
(c) Shadow of an object during the day
(d) Blinking of eyes
14. The correct symbol to represent the speed of an object is:
(a) 5 m/s
(b) 5 mp
(c) 5 m/s-1
(d) 5 s/m
15. The speed of the vehicle is recorded by
(a) Ammeter
(b) Odometer
(c) Speedometer
(d) Voltmeter
16. Time interval of 1000years is called
(a) A millennium
(b) Trillion
(c) Century
(d) Decade
17. Watch used to measure short interval of time is
(a) Stop watch
(b) Pendulum watch
(c) Atom watch
(d) Quartz watch
18. Speed-time graph is straight line for
(a) Non-uniform motion
(b) Discontinuous motion
(c) Uniform motion
(d) Accelerated motion
19. One Kilometer is equal to
(a) 100m
(b) 10m
(c) 10000m
(d) 1000m
20. If the velocity of a body does not change with time, its acceleration is
(a) zero
(b) infinite
(c) Unity
(d) None of these
Answers
Answer :
★ CHOOSE THE CORRECT ANSWER :-
1. The transfer of pollen from the anther to stigma is called
(a) Pollination ✓
(b) Fertilization
(c) Adoption
(d) Diffusion
2. The fusion of female reproductive nucleus with the male reproductive nucleus is known as
(a) Adoption
(b) Excretion
(c) Fertilization ✓
(d) Regeneration
3. In yeasts reproduction occurs by
(a) fragmentation
(b) binary fission
(c) budding ✓
(d) spore formation
4. Seeds of drumstick and maple are carried to long distances by wind because they possess
(a) winged seeds ✓
(b) large and hairy seeds
(c) long and ridged fruits
(d) spiny seeds
5. The eye of the potato plant is what
(a) the root is to any plant
(b) the bud is to a flower ✓
(c) the bud is to Bryophyllum leaf
(d) the anther is to stamen
6. The ovaries of different flowers may contain
(a) only one ovule
(b) many ovules
(c) one to many ovules
(d) only two ovules ✓
7. Vegetative propagation in potato takes place by
(a) leaves
(b) stem ✓
(c) root
(d) seed
8. Lila observed that a pond with clear water was covered up with a green algae within a week. By which method of reproduction did the algae spread so rapidly ?
(a) Budding
(b) Sexual reproduction
(c) Fragmentation ✓
(d) Pollination
9. Male reproductive part of a plant is
(a) pores
(b) pistil
(c) stamen ✓
(d) ovary
10. Mature ovule forms
(a) buds
(b) endosperm
(c) seed ✓
(d) fruit
11. A bus travels 54 km in 90 minutes. The speed of the bus is
(a) 0.6 m/s ✓
(b) 10 m/s
(c) 5.4 m/s
(d) 3.6 m/s
Explanation :
As we know that,
Speed = Distance / Time
» Speed = 54 / 90
» Speed = 0.6 m/s
12. Time period of a simple pendulum depends upon its
(a) weight of bob
(b) length ✓
(c) both (a) and (b)
(d) None of these
13. Which of the following cannot be used for measurement of time?
(a) A leaking tap
(b) Simple pendulum
(c) Shadow of an object during the day
(d) Blinking of eyes ✓
14. The correct symbol to represent the speed of an object is:
(a) 5 m/s ✓
(b) 5 mp
(c) 5 m/s-1
(d) 5 s/m
15. The speed of the vehicle is recorded by
(a) Ammeter
(b) Odometer
(c) Speedometer ✓
(d) Voltmeter
16. Time interval of 1000 years is called
(a) A millennium ✓
(b) Trillion
(c) Century
(d) Decade
17. Watch used to measure short interval of time is
(a) Stop watch ✓
(b) Pendulum watch
(c) Atom watch
(d) Quartz watch
18. Speed-time graph is straight line for
(a) Non-uniform motion
(b) Discontinuous motion
(c) Uniform motion
(d) Accelerated motion ✓
19. One Kilometer is equal to
(a) 100m
(b) 10m
(c) 10000m
(d) 1000m ✓
20. If the velocity of a body does not change with time, its acceleration is
(a) zero ✓
(b) infinite
(c) Unity
(d) None of these
More Information
- Distance = Speed × Time
- Ovules into seeds and ovary develop into a fruit after fertilization.
- 1 metre = 100 centimetre.
- A simple pendulum has a small but heavy mass called bob. This bob is tied to a thread whose other end is is tied to a rigid support.