Available Answers

1. 1.

   Label the different parts of the plant.

   
   Why are leaves of a plant green in colour? 

2. 2.

   State true or false.

   1. Chlorophyll gives green colour to leaves.
   2. A leaf blade is flat so that it can absorb maximum amount of sunlight.
   3. Gas released by plants during preparation of food is known as oxygen.
   4. Plants and animals are not dependent upon each other.
   5. Plants release carbon dioxide for animals and humans to breathe in.
3. 3.

   Tick (√) the correct answer.

   1. The green colour pigment present in leaves of a plant is called
      1. chlorophyll
      2. lamina
      3. midrib
      4. none of these
   2. The flat part of leaves is called
      1. side vein
      2. midrib
      3. stomata
      4. leaf blade
   3. In plants, __________ takes in carbon dioxide and releases oxygen.
      1. chlorophyll
      2. leaf vein
      3. midrib
      4. stomata
   4. What is the food prepared by plants called?
      1. Carbon dioxide
      2. Oxygen
      3. Glucose
      4. Photosynthesis
   5. This plant has its leaves reduced to spines.
      1. Cactus
      2. Venus flytrap
      3. Mushroom
      4. Molds
   6. Some bread was left in a sealed box for two weeks. When it was opened, it had a green/ blue fuzz all over it. What do you think is the fuzz made from?
      1. Small dots
      2. Type of cheese
      3. Mold
      4. Tiny insects
4. 4.

   Fill in the blanks

   1. Plants use __________, __________, __________ and __________ to make food.
   2. The process in which plants use sunlight to convert water and carbon dioxide into food is known as __________.
   3. A series of living things that are dependent on each other for their food is known as __________.
   4. __________ is an insectivorous plant.
   5. __________ and __________ get their food from dead and decaying plants and animals.
5. 5.

   Complete the concept map.

   

6. 6.

   Define stomata.