Identify if each of the following statements are true or false. Mark as T, if they are true and F if they false and select the answer option with the correct answer.

I. Food is essential for all living beings.
II. All plants are autotrophs.
III. Iodine solution is used to test the presence of proteins.
IV. Speech is a life process.
V. Carbon dioxide is a by – product of photosynthesis.

I-T, II-F, III-F, IV-F, V-F

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I-F, II-F, III-T, IV-F, V-T

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I-F, II-F, III-T, IV-T, V-T

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I-T, II-T, III-T, IV-F, V-F

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Solution

The correct option is A
I-T, II-F, III-F, IV-F, V-F

Nutrition is one of the life processes of living organisms and all living beings must obtain their nutrients from the food they eat or any other form of substances. Some living beings feed on other living organisms, hence this statement is true. Plants generally are autotrophs, they make their own food in the presence of sunlight and substances like carbon dioxide and water but some plants are parasitic and latch onto other plants for their nutrients. Hence this statement is false. Iodine solution is used to test the presence of starch and in the presence of starch; it gives a blue black color. Hence this statement is false. Speech is not a life process, it is not a condition that is necessary for an organism to be characterized as a living organism. Hence this statement is False. Carbon dioxide is a raw material of photosynthesis. In this process, carbon dioxide and water combines in the presence of sunlight to form oxygen and glucose. Hence this statement is false.

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Similar questions

Identify if each of the following statements are true or false. Mark as T, if they are true and F if they false and select the answer option with the correct answer.

I. Food is essential for all living beings.
II. All plants are autotrophs.
III. Iodine solution is used to test the presence of proteins.
IV. Speech is a life process.
V. Carbon dioxide is a by – product of photosynthesis.

Given below are the steps to test the presence of proteins in a food item.

(i) Take a small quantity of the food item in a test tube, add 10 drops of water to it and shake it.

(ii) Make a paste or powder of food to be tested.

(iii) Add 10 drops of caustic soda solution to the test tube and shake well.

(iv) Add 2 drops of copper sulphate solution to it.

Which of the following is the correct sequence of steps?

(a) i, ii, iv, iii

(b) ii, i, iv, iii

(d) iv, ii, i, iii

Q. Which of the following statements are true for flowers?
(i) flowers are always bisexual
(ii) they contain sexual reproductive organs
(iii) they are produced in all groups of plants
(iv) after fertilisation they give rise to fruits

(a) (i) and (iv)
(b) (ii) and (iii)
(c) (i) and (iii)
(d) (ii) and (iv)

Q. Read the following sentences about photosynthesis.
(i) Sunlight, carbon dioxide, chlorophyll and water are necessary.
(ii) Oxygen is absorbed.
(iii) Leaves carry out photosynthesis.
(iv) Proteins are made during photosynthesis.

Choose the correct pair of sentences that is true to photosynthesis. [1 mark]

(a) (iii) and (iv) (b) (i) and (iii) (c) (ii) and (iv) (d) (i) and (iv)

Question 16
Which of the following statements are true about flowers?

(i) Flowers are always bisexual
(ii) They are the sexual reproductive organs
(iii) They are produced in all groups of plants
(iv) After fertilization, they give rise to fruits

(a) (i) and (iv)
(b) (ii) and (iii)
(c) (i) and (iii)
(d) (ii) and (iv)

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