Biology ยท Chemistry

Carbohydrates and Biomolecules

986 Questions

Carbohydrates and biomolecules questions test your understanding of sugars, monosaccharides, and metabolic substrates. The topic covers food transportation in plants and the biochemical properties of sweeteners. Practicing these questions builds a strong foundation for exam preparation.

Disaccharides and monosaccharidesArtificial sweetenersGlycogen storagePlant food transportGlycoprotein hormones

Carbohydrates and Biomolecules Questions

Multiple choice
  1. Carbohydrates

  2. Complex Carbohydrates

  3. Starch

  4. Simple Carbohydrates

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Simple carbohydrates are composed of single sugar units (monosaccharides) or double sugar units (disaccharides) that are rapidly broken down and absorbed by the body. Complex carbohydrates, like starch and fiber, consist of longer chains.

Multiple choice
  1. Energy

  2. Stored energy

  3. Fat

  4. Hair & fingernails

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbohydrates are the body's primary and preferred source of quick energy for cellular functions and physical activity.

Multiple choice
  1. Amino Acids

  2. Monosacharides

  3. Nucleotides

  4. Fatty Acids

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Monosaccharides (simple sugars like glucose) are the monomer building blocks of carbohydrates. Amino acids build proteins, nucleotides build nucleic acids, and fatty acids are part of lipids.

Multiple choice
  1. Disaccharides

  2. Polysaccharides

  3. Amino Acids

  4. Monosaccharides

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Carbohydrates are composed of sugar units. Monosaccharides, such as glucose and fructose, are the simplest form of these units and serve as the building blocks for more complex carbohydrates like disaccharides and polysaccharides.

Multiple choice
  1. RQ of Carbohydrate is 1

  2. RQ of Proteins is 0.8 - 0.9

  3. RQ of Malic acid is 1.33 and Oxalic acid is 4.0

  4. All

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Respiratory Quotient (RQ) for carbohydrates is 1, for proteins is 0.8-0.9, and for organic acids like malic and oxalic acid, it is greater than 1 (1.33 and 4.0 respectively).

Multiple choice
  1. 0.8 - 0.9

  2. 1

  3. 0.71

  4. 1.3

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Respiratory Quotient (RQ) is the ratio of CO2 produced to O2 consumed. For carbohydrates, the ratio is 1.

Multiple choice
  1. Starch, Carbohydrates, Glucose

  2. Enzyme, catalyst, Fat

  3. Carbohydrates, proteins, fat

  4. Rice, potatoes, pasta

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The three primary macronutrients (food molecules) required by the body are carbohydrates, proteins, and fats.

Multiple choice
  1. monosaccharide

  2. polysaccharide

  3. amino acid

  4. nucleic acid

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbohydrates are polymers made of repeating units called monosaccharides, such as glucose. Amino acids form proteins, and nucleotides form nucleic acids.