Quiz PPT: Plants | Science Class 7 PDF Download

 Page 1


1 
 
 
                                  
   
 
 
 
   
 
 
 
 
 
I. VERY SHORT ANSWER (1M): 
 
1. Name the part of a flower which becomes a fruit. 
[Ovary] 
2. Name the tiny pores on the surface of a leaf.   
[Stomata] 
3. What are herbs? 
[Herbs are small plants having a soft and tender stem.] 
4. Define Petiole.  
[The stalk of a leaf by which it is attached to the stem is called petiole.] 
5. What is lamina?  
[The broad green flat part of a leaf is called lamina.] 
6. Define leaf venation.  
[The design made be veins in a leaf is called leaf venation.] 
7. What are the two types of Leaf venation? 
[Parallel venation and reticulate venation] 
8. Name the green pigment present in the leaves of a plant. 
[Chlorophyll] 
9. What is a midrib? 
[There is a thick vein in the middle of the leaf called midrib.] 
10. List two main functions of a leaf.  
[Photosynthesis; Transpiration.] 
11. Name the parts of a pistil.  
           [(i) Stigma; (ii) Style; (iii) Ovary] 
      12. What are ovules?  
           [Ovules are small bead-like structures inside the ovary.] 
     13. List the parts of stamen.  
           [(i) Anther; (ii) Filament.] 
 
Page 2


1 
 
 
                                  
   
 
 
 
   
 
 
 
 
 
I. VERY SHORT ANSWER (1M): 
 
1. Name the part of a flower which becomes a fruit. 
[Ovary] 
2. Name the tiny pores on the surface of a leaf.   
[Stomata] 
3. What are herbs? 
[Herbs are small plants having a soft and tender stem.] 
4. Define Petiole.  
[The stalk of a leaf by which it is attached to the stem is called petiole.] 
5. What is lamina?  
[The broad green flat part of a leaf is called lamina.] 
6. Define leaf venation.  
[The design made be veins in a leaf is called leaf venation.] 
7. What are the two types of Leaf venation? 
[Parallel venation and reticulate venation] 
8. Name the green pigment present in the leaves of a plant. 
[Chlorophyll] 
9. What is a midrib? 
[There is a thick vein in the middle of the leaf called midrib.] 
10. List two main functions of a leaf.  
[Photosynthesis; Transpiration.] 
11. Name the parts of a pistil.  
           [(i) Stigma; (ii) Style; (iii) Ovary] 
      12. What are ovules?  
           [Ovules are small bead-like structures inside the ovary.] 
     13. List the parts of stamen.  
           [(i) Anther; (ii) Filament.] 
 
2 
 
 
For the question numbers 14, 15 and 16, two statements are given- one labelled Assertion (A) 
and the other labelled Reason (R). 
Select the correct answer to these questions from the codes (i), (ii), (iii) and (iv) as given below  
i) Both A and R are true and R is correct explanation of the assertion.  
ii) Both A and R are true but R is not the correct explanation of the assertion.  
iii) A is true but R is false.  
iv) A is false but R is true 
 
 
14. Assertion (A): The minerals dissolved in water move up in stem along with water.  
      Reason (R): The stem bears leaves, flowers and fruits.  
i) Both A and R are true but R is not the correct explanation of the assertion.  
 
15. Assertion (A): Plants help in maintaining moisture conditions in the environment.  
      Reason (R): Plants release a lot of water into the air through the process of transpiration.  
ii) Both A and R are true and R is correct explanation of the assertion.  
 
16. Assertion (A): The parts of a typical flower are sepals and petals only.  
      Reason (R): The parts of stamen are filament and anther.  
 iii) A is false but R is true.  
 
II. PASSAGE BASED QUESTIONS: 
Read the following passage and answer the questions. 
 
Leaves prepared their food in the presence of sunlight and a green coloured substance present in 
them. For this, they use water and carbon dioxide from air. This process is called photosynthesis. 
Oxygen is given out in this process. The food prepared by leaves ultimately gets stored in different 
parts of plant as starch. Stem supplies leaf with water. The water and minerals go to leaves and 
other plant parts attached to the stem, through narrow tubes inside the stem. The leaf uses the water 
to make food. The leaves also lose water through transpiration. 
 
I. Study the diagram given below which labelled arrow represents 
the movement of oxygen? 
a.  P b.  Q  c. R  d. S 
II. In which of the following processes do plants lose water in the 
form of water vapour through the leaves? 
a. Transpiration b. Respiration   c. Photosynthesis d. Transportation. 
Page 3


1 
 
 
                                  
   
 
 
 
   
 
 
 
 
 
I. VERY SHORT ANSWER (1M): 
 
1. Name the part of a flower which becomes a fruit. 
[Ovary] 
2. Name the tiny pores on the surface of a leaf.   
[Stomata] 
3. What are herbs? 
[Herbs are small plants having a soft and tender stem.] 
4. Define Petiole.  
[The stalk of a leaf by which it is attached to the stem is called petiole.] 
5. What is lamina?  
[The broad green flat part of a leaf is called lamina.] 
6. Define leaf venation.  
[The design made be veins in a leaf is called leaf venation.] 
7. What are the two types of Leaf venation? 
[Parallel venation and reticulate venation] 
8. Name the green pigment present in the leaves of a plant. 
[Chlorophyll] 
9. What is a midrib? 
[There is a thick vein in the middle of the leaf called midrib.] 
10. List two main functions of a leaf.  
[Photosynthesis; Transpiration.] 
11. Name the parts of a pistil.  
           [(i) Stigma; (ii) Style; (iii) Ovary] 
      12. What are ovules?  
           [Ovules are small bead-like structures inside the ovary.] 
     13. List the parts of stamen.  
           [(i) Anther; (ii) Filament.] 
 
2 
 
 
For the question numbers 14, 15 and 16, two statements are given- one labelled Assertion (A) 
and the other labelled Reason (R). 
Select the correct answer to these questions from the codes (i), (ii), (iii) and (iv) as given below  
i) Both A and R are true and R is correct explanation of the assertion.  
ii) Both A and R are true but R is not the correct explanation of the assertion.  
iii) A is true but R is false.  
iv) A is false but R is true 
 
 
14. Assertion (A): The minerals dissolved in water move up in stem along with water.  
      Reason (R): The stem bears leaves, flowers and fruits.  
i) Both A and R are true but R is not the correct explanation of the assertion.  
 
15. Assertion (A): Plants help in maintaining moisture conditions in the environment.  
      Reason (R): Plants release a lot of water into the air through the process of transpiration.  
ii) Both A and R are true and R is correct explanation of the assertion.  
 
16. Assertion (A): The parts of a typical flower are sepals and petals only.  
      Reason (R): The parts of stamen are filament and anther.  
 iii) A is false but R is true.  
 
II. PASSAGE BASED QUESTIONS: 
Read the following passage and answer the questions. 
 
Leaves prepared their food in the presence of sunlight and a green coloured substance present in 
them. For this, they use water and carbon dioxide from air. This process is called photosynthesis. 
Oxygen is given out in this process. The food prepared by leaves ultimately gets stored in different 
parts of plant as starch. Stem supplies leaf with water. The water and minerals go to leaves and 
other plant parts attached to the stem, through narrow tubes inside the stem. The leaf uses the water 
to make food. The leaves also lose water through transpiration. 
 
I. Study the diagram given below which labelled arrow represents 
the movement of oxygen? 
a.  P b.  Q  c. R  d. S 
II. In which of the following processes do plants lose water in the 
form of water vapour through the leaves? 
a. Transpiration b. Respiration   c. Photosynthesis d. Transportation. 
3 
 
 
III. Which of the following is not taken by the leaf to prepare food? 
a. Sunlight b. Carbon dioxide c. Oxygen d. water. 
 
IV. The narrow tubes present in which among the following part transports water from the 
roots to leaves? 
a. fruit b. stem  c. flower d. bud 
 
V. The food produced by the leaves is stored in the form of 
a. Minerals  b. Proteins c. Vitamins d. starch. 
III.CASE STUDY BASED QUESTIONS: 
Read the following passage and answer the questions. 
 
1] Take a white flower with a part of its stem. In a glass of water, add a few 
drops of red ink. Put the flower with its stem in the glass undisturbed for 12 
hours.  You will see that the white flower is not white anymore. 
 
I. What will be the colour of the flower after 12 hours? 
a. Half red and half blue   
b. Red   
c. Blue                           
d. No change 
II. What is the inference of the experiment? 
a. Stem conducts water. 
b. Root carries water. 
c. Leaf produces food. 
d. Leaf stores food. 
 
III. Which of the following substances are transported by the arrows shown in the given 
plant? 
i) Water  ii) Carbon dioxide iii) Mineral salts  
a. (i)  b. (i) & (ii)  c. (i) & (iii) d. (ii) & (iii) 
 
 
 
 
IV. Paheli splits the stem halfway along its length and drops the two ends in the water in 
glasses A and B as shown in the picture. She put a few drops of red ink in glass A and 
Page 4


1 
 
 
                                  
   
 
 
 
   
 
 
 
 
 
I. VERY SHORT ANSWER (1M): 
 
1. Name the part of a flower which becomes a fruit. 
[Ovary] 
2. Name the tiny pores on the surface of a leaf.   
[Stomata] 
3. What are herbs? 
[Herbs are small plants having a soft and tender stem.] 
4. Define Petiole.  
[The stalk of a leaf by which it is attached to the stem is called petiole.] 
5. What is lamina?  
[The broad green flat part of a leaf is called lamina.] 
6. Define leaf venation.  
[The design made be veins in a leaf is called leaf venation.] 
7. What are the two types of Leaf venation? 
[Parallel venation and reticulate venation] 
8. Name the green pigment present in the leaves of a plant. 
[Chlorophyll] 
9. What is a midrib? 
[There is a thick vein in the middle of the leaf called midrib.] 
10. List two main functions of a leaf.  
[Photosynthesis; Transpiration.] 
11. Name the parts of a pistil.  
           [(i) Stigma; (ii) Style; (iii) Ovary] 
      12. What are ovules?  
           [Ovules are small bead-like structures inside the ovary.] 
     13. List the parts of stamen.  
           [(i) Anther; (ii) Filament.] 
 
2 
 
 
For the question numbers 14, 15 and 16, two statements are given- one labelled Assertion (A) 
and the other labelled Reason (R). 
Select the correct answer to these questions from the codes (i), (ii), (iii) and (iv) as given below  
i) Both A and R are true and R is correct explanation of the assertion.  
ii) Both A and R are true but R is not the correct explanation of the assertion.  
iii) A is true but R is false.  
iv) A is false but R is true 
 
 
14. Assertion (A): The minerals dissolved in water move up in stem along with water.  
      Reason (R): The stem bears leaves, flowers and fruits.  
i) Both A and R are true but R is not the correct explanation of the assertion.  
 
15. Assertion (A): Plants help in maintaining moisture conditions in the environment.  
      Reason (R): Plants release a lot of water into the air through the process of transpiration.  
ii) Both A and R are true and R is correct explanation of the assertion.  
 
16. Assertion (A): The parts of a typical flower are sepals and petals only.  
      Reason (R): The parts of stamen are filament and anther.  
 iii) A is false but R is true.  
 
II. PASSAGE BASED QUESTIONS: 
Read the following passage and answer the questions. 
 
Leaves prepared their food in the presence of sunlight and a green coloured substance present in 
them. For this, they use water and carbon dioxide from air. This process is called photosynthesis. 
Oxygen is given out in this process. The food prepared by leaves ultimately gets stored in different 
parts of plant as starch. Stem supplies leaf with water. The water and minerals go to leaves and 
other plant parts attached to the stem, through narrow tubes inside the stem. The leaf uses the water 
to make food. The leaves also lose water through transpiration. 
 
I. Study the diagram given below which labelled arrow represents 
the movement of oxygen? 
a.  P b.  Q  c. R  d. S 
II. In which of the following processes do plants lose water in the 
form of water vapour through the leaves? 
a. Transpiration b. Respiration   c. Photosynthesis d. Transportation. 
3 
 
 
III. Which of the following is not taken by the leaf to prepare food? 
a. Sunlight b. Carbon dioxide c. Oxygen d. water. 
 
IV. The narrow tubes present in which among the following part transports water from the 
roots to leaves? 
a. fruit b. stem  c. flower d. bud 
 
V. The food produced by the leaves is stored in the form of 
a. Minerals  b. Proteins c. Vitamins d. starch. 
III.CASE STUDY BASED QUESTIONS: 
Read the following passage and answer the questions. 
 
1] Take a white flower with a part of its stem. In a glass of water, add a few 
drops of red ink. Put the flower with its stem in the glass undisturbed for 12 
hours.  You will see that the white flower is not white anymore. 
 
I. What will be the colour of the flower after 12 hours? 
a. Half red and half blue   
b. Red   
c. Blue                           
d. No change 
II. What is the inference of the experiment? 
a. Stem conducts water. 
b. Root carries water. 
c. Leaf produces food. 
d. Leaf stores food. 
 
III. Which of the following substances are transported by the arrows shown in the given 
plant? 
i) Water  ii) Carbon dioxide iii) Mineral salts  
a. (i)  b. (i) & (ii)  c. (i) & (iii) d. (ii) & (iii) 
 
 
 
 
IV. Paheli splits the stem halfway along its length and drops the two ends in the water in 
glasses A and B as shown in the picture. She put a few drops of red ink in glass A and 
4 
 
blue ink in glass B and left the setup undisturbed for 8 hours. 
She wants to know what would be the colour of the flower? 
a. No change  
b. Red   
c. Blue  
d. Half red and half blue. 
 
 
2] Rima kept some soaked gram seeds for sprouting. But she forgot about this. On fifth day she 
suddenly remembered and opened the container having seeds. She found that small leaves along 
with white sprouts have grown out of the seed. 
 
I. What does the white structure of sprout give rise to? 
[White structure of the sprout give rise to root of the plant.] 
 
II. What kind of root system  is found in gram plant? 
[Taproot.] 
 
3] Rakesh while walking in his terrace garden found many types of bees wandering around the 
flowers. He thought that these insects are spoiling his flower and immediately took out the insect 
collecting net to get rid of them. On seeing this Rakesh’s elder brother stopped him from doing 
this and said that these bees are flower’s friends. 
 
I.  What do these bees get from the flowers? 
[Bees get pollen and nectar from the flowers.] 
 
II.  Why Rakesh’s elder brother call these bees as ‘flower’s friend’? 
[Bees help in transfer of pollen grains from anther to stigma. Thus, it helps in pollination.] 
 
III. What is pollination? 
[Pollination is the transfer of pollen grains from anther to stigma of a flower.] 
 
 
IV. a) SHORT ANSWER TYPE QUESTIONS (2 M): 
 
1. What are lateral roots?  
[The smaller roots that grow on the main tap root are called lateral roots.] 
 
2. What is transpiration?  
[Transpiration is the loss of water from the aerial parts of the plant in the form of vapour.] 
 
3. Why are leaves generally green?  
[The green colour of leaves is because of the presence of chlorophyll.] 
 
 
 
Page 5


1 
 
 
                                  
   
 
 
 
   
 
 
 
 
 
I. VERY SHORT ANSWER (1M): 
 
1. Name the part of a flower which becomes a fruit. 
[Ovary] 
2. Name the tiny pores on the surface of a leaf.   
[Stomata] 
3. What are herbs? 
[Herbs are small plants having a soft and tender stem.] 
4. Define Petiole.  
[The stalk of a leaf by which it is attached to the stem is called petiole.] 
5. What is lamina?  
[The broad green flat part of a leaf is called lamina.] 
6. Define leaf venation.  
[The design made be veins in a leaf is called leaf venation.] 
7. What are the two types of Leaf venation? 
[Parallel venation and reticulate venation] 
8. Name the green pigment present in the leaves of a plant. 
[Chlorophyll] 
9. What is a midrib? 
[There is a thick vein in the middle of the leaf called midrib.] 
10. List two main functions of a leaf.  
[Photosynthesis; Transpiration.] 
11. Name the parts of a pistil.  
           [(i) Stigma; (ii) Style; (iii) Ovary] 
      12. What are ovules?  
           [Ovules are small bead-like structures inside the ovary.] 
     13. List the parts of stamen.  
           [(i) Anther; (ii) Filament.] 
 
2 
 
 
For the question numbers 14, 15 and 16, two statements are given- one labelled Assertion (A) 
and the other labelled Reason (R). 
Select the correct answer to these questions from the codes (i), (ii), (iii) and (iv) as given below  
i) Both A and R are true and R is correct explanation of the assertion.  
ii) Both A and R are true but R is not the correct explanation of the assertion.  
iii) A is true but R is false.  
iv) A is false but R is true 
 
 
14. Assertion (A): The minerals dissolved in water move up in stem along with water.  
      Reason (R): The stem bears leaves, flowers and fruits.  
i) Both A and R are true but R is not the correct explanation of the assertion.  
 
15. Assertion (A): Plants help in maintaining moisture conditions in the environment.  
      Reason (R): Plants release a lot of water into the air through the process of transpiration.  
ii) Both A and R are true and R is correct explanation of the assertion.  
 
16. Assertion (A): The parts of a typical flower are sepals and petals only.  
      Reason (R): The parts of stamen are filament and anther.  
 iii) A is false but R is true.  
 
II. PASSAGE BASED QUESTIONS: 
Read the following passage and answer the questions. 
 
Leaves prepared their food in the presence of sunlight and a green coloured substance present in 
them. For this, they use water and carbon dioxide from air. This process is called photosynthesis. 
Oxygen is given out in this process. The food prepared by leaves ultimately gets stored in different 
parts of plant as starch. Stem supplies leaf with water. The water and minerals go to leaves and 
other plant parts attached to the stem, through narrow tubes inside the stem. The leaf uses the water 
to make food. The leaves also lose water through transpiration. 
 
I. Study the diagram given below which labelled arrow represents 
the movement of oxygen? 
a.  P b.  Q  c. R  d. S 
II. In which of the following processes do plants lose water in the 
form of water vapour through the leaves? 
a. Transpiration b. Respiration   c. Photosynthesis d. Transportation. 
3 
 
 
III. Which of the following is not taken by the leaf to prepare food? 
a. Sunlight b. Carbon dioxide c. Oxygen d. water. 
 
IV. The narrow tubes present in which among the following part transports water from the 
roots to leaves? 
a. fruit b. stem  c. flower d. bud 
 
V. The food produced by the leaves is stored in the form of 
a. Minerals  b. Proteins c. Vitamins d. starch. 
III.CASE STUDY BASED QUESTIONS: 
Read the following passage and answer the questions. 
 
1] Take a white flower with a part of its stem. In a glass of water, add a few 
drops of red ink. Put the flower with its stem in the glass undisturbed for 12 
hours.  You will see that the white flower is not white anymore. 
 
I. What will be the colour of the flower after 12 hours? 
a. Half red and half blue   
b. Red   
c. Blue                           
d. No change 
II. What is the inference of the experiment? 
a. Stem conducts water. 
b. Root carries water. 
c. Leaf produces food. 
d. Leaf stores food. 
 
III. Which of the following substances are transported by the arrows shown in the given 
plant? 
i) Water  ii) Carbon dioxide iii) Mineral salts  
a. (i)  b. (i) & (ii)  c. (i) & (iii) d. (ii) & (iii) 
 
 
 
 
IV. Paheli splits the stem halfway along its length and drops the two ends in the water in 
glasses A and B as shown in the picture. She put a few drops of red ink in glass A and 
4 
 
blue ink in glass B and left the setup undisturbed for 8 hours. 
She wants to know what would be the colour of the flower? 
a. No change  
b. Red   
c. Blue  
d. Half red and half blue. 
 
 
2] Rima kept some soaked gram seeds for sprouting. But she forgot about this. On fifth day she 
suddenly remembered and opened the container having seeds. She found that small leaves along 
with white sprouts have grown out of the seed. 
 
I. What does the white structure of sprout give rise to? 
[White structure of the sprout give rise to root of the plant.] 
 
II. What kind of root system  is found in gram plant? 
[Taproot.] 
 
3] Rakesh while walking in his terrace garden found many types of bees wandering around the 
flowers. He thought that these insects are spoiling his flower and immediately took out the insect 
collecting net to get rid of them. On seeing this Rakesh’s elder brother stopped him from doing 
this and said that these bees are flower’s friends. 
 
I.  What do these bees get from the flowers? 
[Bees get pollen and nectar from the flowers.] 
 
II.  Why Rakesh’s elder brother call these bees as ‘flower’s friend’? 
[Bees help in transfer of pollen grains from anther to stigma. Thus, it helps in pollination.] 
 
III. What is pollination? 
[Pollination is the transfer of pollen grains from anther to stigma of a flower.] 
 
 
IV. a) SHORT ANSWER TYPE QUESTIONS (2 M): 
 
1. What are lateral roots?  
[The smaller roots that grow on the main tap root are called lateral roots.] 
 
2. What is transpiration?  
[Transpiration is the loss of water from the aerial parts of the plant in the form of vapour.] 
 
3. Why are leaves generally green?  
[The green colour of leaves is because of the presence of chlorophyll.] 
 
 
 
5 
 
4. What are shrubs? 
[Shrubs are medium-sized plants with a hard and woody stem branching out near the 
base.] 
 
5.Write the functions of sepals and petals. 
[Functions of sepals: Sepals protect the inner parts of flower when it is a bud. 
Function of petals: Petals attract the insects which are the agents  of pollination by colour 
and fragrance.] 
6. Name the reproductive part of a plant. What are the specialised reproductive parts in it?  
[Flower is the reproductive part of a plant. Stamen is the male reproductive part of the 
flower. Pistil is the female reproductive part of the flower.] 
 
7. The sapling of a tree can/ cannot be considered as herb. Justify the statement.  
[The sapling of a tree cannot be considered as a herb since herbs are the plants that have 
short length with tender stem and leaves.] 
 
8. Potatoes do not produce starch. Yet, they are full of it. Justify.  
[Potato is an underground stem which is modified to store starch produced by the plant 
during photosynthesis.] 
 
9. Rohit tries to pull out a grass and a rose plant from the soil. Which one will he be able to pull 
out more easily and why?  
[He will be able to pull out grass more easily as compared to rose plant because fibrous 
roots are found in grass which does not go down much deep in soil.] 
 
IV. b) SHORT ANSWER TYPE QUESTIONS (3 M): 
 
1. How do you identify the root system of a plant without pulling it out of soil?  
[By looking at the venation of the leaves, we can identify the root system of plants. Plants 
with leaves having parallel venation have fibrous root and leaves having reticulate venation 
have taproot.] 
 
2. What are the main functions of roots?  
[i) Roots absorb water and minerals from the soil.  
ii) Roots help in holding the plant firmly in the soil. 
 
3. Transpiration lead  to loss of water in plants. Yet, it is a useful process, both for the plant and 
the environment. Justify.  
[The loss of water vapour from the plant cools down the plant when the weather is hot and 
helps the plant to absorb water and minerals from the soil. Transpiration is very important 
for maintaining moisture conditions in the environment. ] 
 
4. Will a leaf taken from a potted plant kept in a dark room for a few days turn blue-black when 
tested for starch? Give reasons for your answer.