Class 6 Science Chapter 7 MCQ Tests for 2020-2021
Class: 6 | Science |
Chapter: 7 | Getting to Know Plants |
Contents: | MCQ Online Tests with answers |
Class 6 Science Chapter 7 MCQ Test Free
Class 6 Science Chapter 7 MCQ Online Tests help to improve the concepts related to this chapter. Questions as well as answers are prepared from latest NCERT Books only issued for academic session 2020-2021. There are given more than 90 questions for a perfect practice of the chapter 7 of class 6 Science.
Q1
Paheli is writing some statements. She wants to know in which of the following statements is or are correct?
[A]. The swollen basal part of the pistil is the ovary which bears the ovules.
[B]. Root is the first part that comes out of a seed and provides anchorage to plant.
[C]. The leaf which has reticulate venation, the veins in leaf occur in an irregular way forming a net like structure.
[D]. All the above
Answer: Option D
Explanation:Here, all the statements are correct. Hence, your answer will be option [D].
Q2
Consider the following statement and choose the incorrect one:
[A]. Plants do not move around like animals do.
[B]. Most of the plants have green leaves.
[C]. Most of the plants bear flowers, called flowering plants.
[D]. The plants can be classified into three main group, as herbs, creepers and trees.
Answer: Option D
Explanation:The plants can be classified into three main group, as herbs, shrubs and trees.
Q3
Which of the following statement is or are incorrect?
[A]. Taproot is a straight tapering root which grows vertically down into the soil.
[B]. The fibrous roots spread out the soil and gives a film support to the plant.
[C]. Stem is the part of a plant which rises vertically up from the ground.
[D]. The root of a tree is the strongest part of the tree and it is known as trunk.
Answer: Option D
Explanation:The stem of a tree is the strongest part of the tree and it is known as trunk.
Most of the tree trunks are covered with a layer called bark. Bark protects the inner parts of a tree.
Q4
Boojho appeared in class test where he wrote some statements but he confused to know the correct statement. Would you help him to know that?
[A]. The fruits and seeds are formed from flowers by the process of pollination and fertilization.
[B]. Pollination is done by insects, winds and water.
[C]. After fertilization, the ovules grow and become seeds.
[D]. All the above.
Answer: Option D
Explanation:Here, all the statements are correct. Hence, your answer will be option [D].
Q5
Paheli is taking preparation for her final examination. She is writing some statements, but she confused to know whether the statements are correct or not? Would you help her?
[A]. The ovary contains tiny egg like structure called ovules.
[B]. The swollen part at the bottom of the pistil is called ovary.
[C]. The ovules contain male sex cells of a plant.
[D]. The female part of a flower called “pistil” is also known as carpel.
Answer: Option C
Explanation:The ovules contain female sex cells of a plant, not male cells. Rest of all statements are correct. Hence, your answer will be option [C] as incorrect.
Q6
Consider the following statements, choose the incorrect one(s):
[A]. Plants are considered as living organisms.
[B]. Leaves make food by the process of photosynthesis.
[C]. Green stems can also take part in the process of photosynthesis.
[D]. Grasses, mushrooms, sugarcane are the examples of non-flowering plants.
Answer: Option D
Explanation:Most of the plants bear flowers, they are called flowering plants. Some of the examples of flowering plants are sunflower plant, rose, mango, grass, lemon, wheat, chilli, tomato, tulsi, potato, sugarcane etc.
Some of the plants, do not bear flowers, they are called non-flowering plants. Some of the examples of non-flowering plants are pine trees, mushrooms or fungi, ferns, algae, etc.
Q7
Boojho is writing some statements about herbs, shrubs and trees. In which of the following statements is or are incorrect? Help him.
[A]. Herbs are non-woody plants and they do not grow more than one metre height.
[B]. Sunflower, cabbage, ginger, turnip, mustard are the examples of herbs.
[C]. Shrubs are medium-sized plants with a hard and woody stem branching out near the base.
[D]. Lemon, tomato, tulsi are the example of shrubs.
Answer: Option D
Explanation:Examples of herbs are tomato, mustard, turnip, radish, rice, cabbage, carrot, ginger etc. Examples of shrubs are lemon, henna, pomegranate, china rose, tulsi, croton, jasmine, rose etc.
Here, all the statements are correct except option [D]. Hence, your answer will be option [D].
Q8
Which of the following terms constituted the female part of the flower?
[A]. Sepals, petal and stamens
[B]. Stigma, style and ovary
[C]. Ovary, stamen and stigma
[D]. Ovary, style and stamen
Answer: Option B
Explanation:The Pistil or carpel is the female part of a flower. It is made up of three parts as:
Stigma: Top part of Pistil. It is sticky and receives Pollen.
Style: Middle part of pistil. It is a tube that connects stigma to ovary.
Ovary: Swollen part at the bottom of pistil that contains ovules.
Q9
Read the following sentences about photosynthesis and choose the correct pair of sentences that is true?
[A]. Leaves carry out photosynthesis and proteins are made during photosynthesis.
[B]. Sunlight, carbon dioxide, chlorophyll and water are necessary and leaves carry out photosynthesis.
[C]. Oxygen is absorbed and proteins are made during photosynthesis.
[D]. Sunlight, carbon dioxide, chlorophyll and water are necessary and proteins are made during photosynthesis.
Answer: Option B
Explanation:Photosynthesis is the process by which leaves prepare food. Sunlight, Carbon dioxide, Chlorophyll and Water are necessary for it.
The other sentences can be corrected as:
Oxygen is released (not absorbed) during this process and carbohydrates (not proteins) are made during photosynthesis.
Q10
In a final examination, you are given some statements in science paper where you have to choose incorrect statements:
[A]. The leaves make food for the plant by the process of photosynthesis.
[B]. The leaves of plants contain a green coloured pigment called chlorophyll.
[C]. There are minute pores on the surface of a leaf called stomata.
[D]. None of the above.
Answer: Option D
Explanation:Here, all the statements are correct. Hence, your answer should be option [D].
What is meant by secretion?
Plants excrete water vapour and carbon dioxide from small pores called stomata. They get rid of their waste by secreting substances which are not required. This process is known as secretion.
What are unicellular organisms?
Some plants and animals consist of single-cell and are called unicellular organisms. Examples: Amoeba,
parameci, bacteria and yeast.
What are multicellular organisms?
Some animals and plants have as many as billion of cells. They are known as multicellular organisms. Examples: Man, cat, dog, pine, rose plant etc.
What is meant by stimulus?
All living things respond to their surroundings. External factors like light and temperature make living being react to them. The change that produces a response in an organism is known as stimulus.
The differences between living and non-living things
- Living things need food but non-living things do not need food.
- Living things need a habitat but nonliving things do not need a particular habitat.
- Living things are made of cells while non-living things are made of atoms.
- Living thins reproduce while nonliving things cannot reproduce.
- Living things grow and develop while non-living things do not grow and develop.
- Living things have a definite life span while the life span of non-living things depend on maintenance and other factors.