List in tabular form three distinguishing features between autotrophic nutrition and heterotrophic nutrition.

Features Autotrophic nutrition Heterotrophic nutrition Definition Autotrophic nutrition is a mode of nutrition where organisms manufacture their own food from inorganic materials carbon dioxide and water in the presence of chlorophyll and sunlight. Heterotrophic nutrition is a mode of nutrition where organisms depend upon other organisms for their organic food. Definition The organisms that undergo autotrophic nutrition is called autotrophs. The organisms that undergo autotrophic nutrition is called heterotroph. Example Green plants are example of autotrophs. Animals.

List four precautions which a student should observe while preparing a temporary mount of a leaf peel to show stomata in his school laboratory.

The four precautions which a student should observe while preparing a temporary mount of a leaf peel to show stomata in his school laboratory are listed below: Student should cut the peel to a proper size and avoid folding it. Always place the peel at the centre of the slide and hold the slide at the edges. Student should not overstrain or under strain the peel. We should remove excess stain and glycerin with a blotting paper.

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 6 - Life Processes>CBSE-2019>Q 11

MEDIUM

10th CBSE

IMPORTANT

Earn 100

What is transpiration? List its two functions.

Important Questions on Life Processes

MEDIUM

10th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 6 - Life Processes>CBSE-2019>Q 12

Where do the substances in plants reach as a result of translocation?

MEDIUM

10th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 6 - Life Processes>CBSE-2019>Q 13

What is translocation? Why is it essential for plants?

HARD

10th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 6 - Life Processes>CBSE-2020>Q 14

Draw a diagram of human respiratory system and label- pharynx, trachea, lungs, diaphragm and alveolar sac on it.

EASY

10th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 6 - Life Processes>CBSE-2020>Q 15

Why is there a difference in the rate of breathing between aquatic organisms and terrestrial organisms? Explain.

MEDIUM

10th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 6 - Life Processes>CBSE-2020>Q 16

Name the organs that form the excretory system in human beings.

HARD

10th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 6 - Life Processes>CBSE-2020>Q 17

Describe in brief how urine is produced in the human body.

EASY

10th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 6 - Life Processes>CBSE-2021 Term I>Q 18

Consider the following statements in connection with the functions of the blood vessels marked A and B in the diagram of a human heart as shown.
Question Image
(i) Blood vessel A — It carries carbon dioxide rich blood to the lungs.
(ii) Blood vessel B — It carries oxygen rich blood from the lungs.
(iii) Blood vessel B — Left atrium relaxes as it receives blood from this blood vessel.
(iv) Blood vessel A - Right atrium has thick muscular wall as it has to pump blood to this vessel.
The correct statements are-