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

What is the primary sugar found in milk and dairy products?

  1. Glucose

  2. Fructose

  3. Sucrose

  4. Lactose
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Lactose is the primary sugar found in milk and dairy products, consisting of two simple sugars: glucose and galactose.

Multiple choice

Which enzyme is responsible for breaking down lactose into glucose and galactose?

  1. Lactase

  2. Sucrase

  3. Maltase

  4. Amylase
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lactase is the enzyme produced by the small intestine that breaks down lactose into glucose and galactose, allowing them to be absorbed into the bloodstream.

Multiple choice

What is the main type of sugar found in dairy products?

  1. Glucose

  2. Fructose

  3. Sucrose

  4. Lactose
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Lactose is the primary sugar found in dairy products, and it is responsible for the slightly sweet flavor of milk and other dairy products.

Multiple choice

Which of these sweeteners is commonly used in ketogenic baking and cooking?

  1. Sugar

  2. Honey

  3. Erythritol
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Erythritol is a sugar alcohol that is commonly used as a low-carb sweetener in ketogenic recipes.

Multiple choice

Which enzyme is responsible for breaking down cellulose, a complex carbohydrate found in plant cell walls?

  1. Pepsin

  2. Amylase

  3. Cellulase

  4. Lactase
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cellulase is an enzyme produced by some bacteria and fungi that breaks down cellulose into simpler sugars.

Multiple choice

Which enzyme is responsible for breaking down maltose into glucose?

  1. Pepsin

  2. Amylase

  3. Maltase

  4. Lactase
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Maltase, produced in the small intestine, breaks down maltose, a disaccharide, into two molecules of glucose.

Multiple choice

Which enzyme is responsible for breaking down glycogen into glucose?

  1. Pepsin

  2. Amylase

  3. Glycogenase

  4. Lactase
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Glycogenase, produced in the liver and muscles, breaks down glycogen, a storage form of glucose, into glucose.

Multiple choice

Which type of sugar is commonly used in table sugar and processed foods?

  1. Sucrose

  2. Glucose

  3. Fructose

  4. Lactose
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sucrose, also known as table sugar, is the most common type of sugar used in various food products.

Multiple choice

What is the chemical formula of sucrose?

  1. C12H22O11

  2. C6H12O6

  3. C18H32O16

  4. C24H36O18
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The chemical formula of sucrose is C12H22O11, indicating its composition of 12 carbon atoms, 22 hydrogen atoms, and 11 oxygen atoms.

Multiple choice

What is the chemical name of aspartame?

  1. N-Acetyl-L-aspartic acid

  2. Sucralose

  3. Acesulfame potassium

  4. Saccharin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Aspartame, an artificial sweetener, has the chemical name N-Acetyl-L-aspartic acid.

Multiple choice

Which sweetener is commonly used in diet sodas and chewing gums?

  1. Aspartame

  2. Sucralose

  3. Acesulfame potassium

  4. Saccharin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Aspartame is widely used as a sweetener in diet sodas, chewing gums, and other low-calorie products.

Multiple choice

What is the chemical formula of sucralose?

  1. C12H19Cl3O8

  2. C6H12O6

  3. C18H32O16

  4. C24H36O18
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sucralose, an artificial sweetener, has the chemical formula C12H19Cl3O8, indicating the presence of chlorine atoms in its structure.

Multiple choice

What is the chemical name of saccharin?

  1. Benzoic sulfimide

  2. Sucralose

  3. Acesulfame potassium

  4. Aspartame
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Saccharin, an artificial sweetener, has the chemical name benzoic sulfimide.

Multiple choice

Which sweetener is commonly used in tabletop sweeteners and baking products?

  1. Aspartame

  2. Sucralose

  3. Acesulfame potassium

  4. Saccharin
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Saccharin is often used as a tabletop sweetener and in baking products due to its stability at high temperatures.

Multiple choice

What is the chemical name of xylitol?

  1. Xylitol

  2. Sucralose

  3. Acesulfame potassium

  4. Saccharin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Xylitol, a natural sweetener, has the chemical name xylitol.