CBSE Class 10 Science Worksheet
Unit II: World of Living - Reproduction
1.
When does pollen tube develop in a flower?
3.
Choose the correct answer: All sepals taken together are called ____________________.
A)
Petals
B)
Stamen
C)
Corolla
D)
Calyx
4.
Choose the correct answer: Amoeba reproduce by ____________.
A)
Budding
B)
Binary fission
C)
Multiple fission
D)
None of these
5.
Choose the correct answer: The artificial vegetative prpagation used to grow plants like jasmine is ____________.
A)
Grafting
B)
Layering
C)
Both 1 and 2
D)
None of these
6.
Give two examples of unisexual flower plants.
7.
Choose the correct answer: The part of onion which is used for vegetative propagation is ______________.
A)
Tuber
B)
Rhizome
C)
Bulb
D)
Leaf buds
8.
Choose the correct answer: The portion of the plant which is grafted on other plant is called ______________.
A)
Stock
B)
Scion
C)
Stucker
D)
None of these
9.
What is the mode of reproduction in Planaria?
A)
Regeneration
B)
Budding
C)
Binary fission
D)
Multiple fission
10.
Where is the zygote located in the flower after fertilisation?
11.
Choose the correct answer: Plasmodium reproduce by ______________________.
A)
Budding
B)
Binary fission
C)
Multiple fission
D)
None of these
12.
Choose the correct answer: Hydra reproduce by ___________________.
A)
Budding
B)
Binary fission
C)
Multiple fission
D)
Vegetative propagation
13.
What is the function of the umbilical cord?
14.
State True or False: Unisexual flowers possessing only stamens cannot produce fruits.
A)
TRUE
B)
FALSE
15.
Choose the correct answer: The anther contains _________________.
A)
Sepals
B)
Ovules
C)
Pollen grains
D)
Stigma
16.
State True or False: Hibiscus is a unisexual flower.
A)
TRUE
B)
FALSE
17.
Which of the following is release gametes in the surrounding medium?
A)
Mammals
B)
Amphibians
C)
Earthworm
D)
None of these
18.
Fill in the blanks: _______________ is the transfer of pollen grains from anther to the stigma of a flower.
19.
Which glands provide fluids to the semen?
20.
Choose the correct answer: Bud of Bryophyllum is present on ______________________.
A)
Stem
B)
Roots
C)
Leaf
D)
Fruit
CBSE Class 10 Science Worksheet
Unit II: World of Living - Reproduction
Answers
1.
When pollen grain falls over stigma during pollination, the pollen grain absorbs water and nutrients and produces a tube known as pollen tube.
2.
Human Immunodeficiency Virus.
3.
Option D
4.
Option B
5.
Option B
6.
Papaya and Watermelon
7.
Option C
8.
Option B
9.
Option A
10.
Inside the ovule which is present in the ovary.
11.
Option C
12.
Option A
13.
It contains blood vessels which supply blood between the foetus and the placenta.
14.
Option A
15.
Option C
16.
Option B
17.
Option B
18.
Pollination
19.
Seminal vesicles and prostate gland
20.
Option C
