Test-MCQ Class 10-NCERT -Science-Chapter 6-Test-1

1. Yeast respires anaerobically using sugar as a substrate. Out of the options given below, choose the correct combination of condition and product?

2. The table shows the percentage composition of four samples of air. Which sample could have been breathed out by a person after vigorous exercise?

3. Cramps caused during sudden activities are due to the formation of

5. Which of the following plays nose like function in plants?

Which changes occur when a person breathe in deeply?

6. The diagram given above shows part of the lining of the human trachea. What is the function of X?

7. The table given below shows the percentage composition of a gas in inspired and in expired air.

What is the gas?

8. Which of the following statements about the autotrophs is incorrect?

9. In which of the following groups of organisms, food material is broken down outside the body and absorbed?

10. Select the correct statement.

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