10th Biology 1 Mark Questions and Multiple Choice Questions

Following are One Mark Questions and objective multiple choice question from Biology of 10th class for AP and Telangana students. These are for English medium students.

Q: Why is it necessary to destarch a plant before performing any experiment on photosynthesis?
A: If we do not destarch a plant before performing the experiment on photosynthesis, the starch present in the plant may interfere with the result of the experiment.

Q: Name the end products of light reaction.
A: Oxygen, ATP and NADPH are the three end products of light reaction.

Q: What is emulsification?
A: Fats are digested by converting them into small globule like forms by the help of bile juice secreted from liver. This process is called emulsification.

Q: What is the function of epiglottis?
A: Epiglottis controls the movement of air and food towards their respective passages.

Q: What is the use of ATP?
A: ATP is the energy currency for most cellular processes and it is used to supply energy in the cells to carry the metabolic processes.

Q: What are the symptoms of the disease pellagra?
A: Dermatitis, diarrhoea, loss of memory and scaly skin.

Multiple Choice Questions

1. Haemoglobin of blood transports .........
A) oxygen only
B) carbon dioxide only
C) Both oxygen and carbon dioxide
D) Nitrogen only

2. Which of the following is correct?
A) The diaphragm contracts-volume of chest cavity increases.
B) The diaphragm contracts- volume of chest cavity decreases.
C) The diaphragm expands-volume of chest cavity increases.
D) The diaphragm expands-volume of chest cavity decreases.

3. The % of oxygen in exhaled air is ...........
A) 21 B) 16 C) 79 D) 14

4. In plants, exchange of gases takes place through ...........
A) stomata B) loose tissue on stem
C) loose tissue on root D) All the above

5. Splitting of water molecule during photosynthesis is known as ............
A) Emulsification B) Photolysis
C) Electrolysis D) Hydrolysis

6. The vitamin required for coagulation of blood is ............
A) D B) K C) E D) A

7. The energy saved in photosynthesis is derived from ...........
A) Sunlight B) Oxidation of glucose
C) Breaking of proteins D) Breaking of glucose

8. Haemoglobin is a .......
A) protein B) fat C) carbohydrate D) None of these

9. --------- absorbs CO2,
A) Potassium hydroxide
B) Sodium chloride
C) Potassium permanganate
D) Potassium chlorate

Answers: 1-C, 2-A, 3-B, 4-A, 5-B, 6-B, 7-A, 8-A, 9-A.

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