Question 1

Consider the following statements: 1. Caffeine, a constituent of tea and coffee is a diuretic 2. Citric acid is used in soft drinks 3. Ascorbic acid is essential for formation of bones and teeth 4. Citric acid is a good substitution ascorbic acid in our nutrition. Which of the statements given above are correct?

Accepted Answer

In the given statements, it is correct that caffeine found in tea and coffee acts as a diuretic and that citric acid is commonly used in soft drinks. However, it is incorrect to say that ascorbic acid (vitamin C) is crucial for bone and teeth formation; instead, vitamin D plays that role. Additionally, citric acid is not a suitable replacement for ascorbic acid in our dietary needs. Therefore, the correct statements among the options provided are 1 and 2 only, which makes option (a) the correct answer.

Question 2

Match List-I with List-II and select the correct answer by using the codes given below: List-I: A. Vitamin B. Enzyme C. Hormone D. Protein | List-II: 1. Pepsin 2. Carotene 3. Keratin 4. Progesterone

Accepted Answer

In this biology question, you were asked to match items from List-I with corresponding items from List-II. The correct match is: Vitamin (A) with Carotene (2), Enzyme (B) with Pepsin (1), Hormone (C) with Progesterone (4), and Protein (D) with Keratin (3). This corresponds to option (b) as the correct answer.

Regarding the statement about the Vitamin A group including retinol and carotene being a precursor to this group, it means that carotene is a substance that can be converted into Vitamin A in the body.

Question 3

Linus Pauling is associated with

Accepted Answer

Linus Carl Pauling suggested that consuming a high amount of vitamin C could potentially aid in reducing the risk of both the common cold and cancer.

Question 4

Consider the following statements in respect of probiotics: 1. Probiotics are made of both bacteria and yeast. 2. The organisms in probiotics are found in foods we ingest but they do not naturally occur in our gut. 3. Probiotics help in the digestion of milk sugars. Which of the statements given above is/are correct?

Accepted Answer

Probiotics are composed of beneficial bacteria and sometimes yeast. These organisms are naturally found in our gut and also in certain foods we consume. Probiotics aid in the digestion of various substances, including milk sugars, helping improve gut health and overall digestion.

Question 5

Consider the following organisms: 1. Agaricus 2. Nostoc 3. Spirogyra. Which of the above is/are used as biofertilizer/biofertilizers?

Accepted Answer

In the realm of Biology, Agaricus, Nostoc, and Spirogyra are three organisms. Among these, Nostoc serves as a biofertilizer by converting atmospheric nitrogen and is commonly applied to paddy fields.

Biology - Nutrition & Health — UPSC Previous Year Questions

Year-wise Distribution

Sample Questions

Biology - Nutrition & Health — UPSC Previous Year Questions

Year-wise Distribution

Sample Questions