Biomolecules

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Questions and Answers

What is the general name of the simplest monosaccharides with three carbon atoms?

  • Polysaccharides
  • Trioses (correct)
  • Hexoses
  • Pentoses

What is the name of the pentose commonly found in nature?

  • Ribose (correct)
  • Fructose
  • Dihydroxyacetone
  • Glucose

Which of the following monosaccharides does not contain asymmetric carbon atoms?

  • Glucose
  • Fructose
  • Dihydroxyacetone (correct)
  • Glyceraldehyde

What is the name of the hexose commonly found in sweet fruits, especially grapes?

<p>Glucose (C)</p> Signup and view all the answers

What is the name of the reaction that forms glucosate from glucose?

<p>Reaction with metallic hydroxides (B)</p> Signup and view all the answers

What is the characteristic of glucose that makes it a weak acid?

<p>It behaves as a weak acid (C)</p> Signup and view all the answers

What is the general formula of disaccharides that yield two hexoses on hydrolysis?

<p>C12 H 22 O11 (D)</p> Signup and view all the answers

What is the product of hydrolysis of sucrose?

<p>Glucose + Fructose (C)</p> Signup and view all the answers

What is the process of converting an aldose to its isomeric ketose?

<p>Three-step process involving oxime formation (A)</p> Signup and view all the answers

What is the product of hydrolysis of lactose?

<p>Glucose + Galactose (B)</p> Signup and view all the answers

What is the purpose of Ruff Degradation?

<p>Shortening the chain length of aldoses (D)</p> Signup and view all the answers

What is the product of hydrolysis of maltose?

<p>Glucose + Glucose (D)</p> Signup and view all the answers

What is the general formula for carbohydrates?

<p>$C_nH_{2n}O_n$ (C)</p> Signup and view all the answers

What is the term for carbohydrates with an aldehydic structure?

<p>Aldoses (A)</p> Signup and view all the answers

How many carbon atoms can be present in a monosaccharide molecule?

<p>Between 3 and 9 (B)</p> Signup and view all the answers

What is the term for carbohydrates with a ketonic structure?

<p>Ketoses (C)</p> Signup and view all the answers

What is the suffix of simpler carbohydrates?

<p>-ose (B)</p> Signup and view all the answers

What is the term for a carbohydrate that can be broken down into polyhydric aldehydes or ketones?

<p>Carbohydrate (D)</p> Signup and view all the answers

Which vitamin deficiency is associated with symptoms such as cheilosis, digestive disorders, and burning sensations in skin and eyes?

<p>Vitamin B2 (B)</p> Signup and view all the answers

Which coenzyme is involved in oxidative metabolism and is required for the proper functioning of the heart?

<p>NAD (C)</p> Signup and view all the answers

Which vitamin is essential for the synthesis of collagen, cartilage, bone, teeth, and connective tissue?

<p>Vitamin C (B)</p> Signup and view all the answers

What is the chemical formula for Vitamin H (Biotin)?

<p>C10H16N2O3S (B)</p> Signup and view all the answers

Which vitamin deficiency is associated with symptoms such as pellagra, dermatitis, and diarrhoea?

<p>Vitamin B3 (A)</p> Signup and view all the answers

What is the role of coenzyme FAD in the body?

<p>Involved in oxidative metabolism (A)</p> Signup and view all the answers

Which vitamin is a derivative of a monosaccharide?

<p>Vitamin C (D)</p> Signup and view all the answers

What is the name of the protein hormone that consists of 51 amino acids?

<p>Insulin (D)</p> Signup and view all the answers

Which of the following is a nucleoside?

<p>Adenosine (A)</p> Signup and view all the answers

What is the name of the complex responsible for the red color of haemoglobin?

<p>Heme (A)</p> Signup and view all the answers

What is the pH range maintained by the bicarbonate/carbonic acid system in the blood?

<p>7.36-7.42 (A)</p> Signup and view all the answers

Which vitamins contain isoprene units?

<p>Vitamin K and Vitamin A (B)</p> Signup and view all the answers

Which vitamin is essential for oxidative metabolism and combines with phosphoric acid to form coenzyme FAD?

<p>Vitamin B2 (D)</p> Signup and view all the answers

What is the function of Vitamin B3 in the body?

<p>Important component of Co-A required for oxidative metabolism (C)</p> Signup and view all the answers

Which of the following vitamins is a major component of coco-carboxylase enzyme?

<p>Vitamin B1 (D)</p> Signup and view all the answers

What is the role of Coenzyme NAD in the body?

<p>Not mentioned in the provided text (C)</p> Signup and view all the answers

What is the function of Vitamin B2 in the body?

<p>Combines with phosphoric acid to form coenzyme FAD (A)</p> Signup and view all the answers

What is the name of the enzyme that requires Vitamin B1?

<p>Coco-carboxylase (A)</p> Signup and view all the answers

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