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

Which type of sugar is commonly used in making cotton candy?

  1. Rock sugar

  2. Muscovado sugar

  3. Brown sugar

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

Granulated sugar is commonly used in making cotton candy due to its fine texture and ability to create a light and fluffy consistency.

Multiple choice

Which type of sugar is commonly used in making royal icing?

  1. Caster sugar

  2. Powdered sugar

  3. Brown sugar

  4. Demerara sugar
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Powdered sugar, also known as confectioners' sugar or icing sugar, is commonly used in making royal icing due to its fine texture and ability to create a smooth, glossy finish.

Multiple choice

Which type of sugar is naturally occurring in fruits and vegetables?

  1. Sucrose

  2. Glucose

  3. Fructose

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

Fructose is a naturally occurring sugar found in fruits and vegetables. It is sweeter than sucrose and is absorbed more slowly by the body.

Multiple choice

What is the primary concern associated with the use of artificial sweeteners in fruit juices?

  1. Loss of nutritional value

  2. Increased risk of allergic reactions

  3. Potential toxicity

  4. Reduced shelf life
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Artificial sweeteners, such as aspartame, sucralose, and saccharin, are sometimes added to fruit juices to reduce sugar content and calories. However, some artificial sweeteners have been linked to potential health concerns, including increased risk of cancer and metabolic disorders.

Multiple choice

Which of the following is the primary sugar found in fruit juices?

  1. Glucose

  2. Fructose

  3. Sucrose

  4. Maltose
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Fructose is the dominant sugar in most fruit juices, contributing to their sweetness and energy content.

Multiple choice

What is the role of sugar in jam making?

  1. To add sweetness

  2. To thicken the jam

  3. To preserve the jam

  4. To enhance color
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sugar plays a crucial role in preserving jams. It acts as a natural preservative by inhibiting the growth of microorganisms and preventing spoilage.

Multiple choice

Which of the following is NOT a type of sugar?

  1. Glucose

  2. Fructose

  3. Sucrose

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

Starch is a complex carbohydrate rather than a sugar.

Multiple choice

Which of the following is NOT a type of artificial sweetener?

  1. Aspartame

  2. Sucralose

  3. Acesulfame potassium

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

Stevia is a natural sweetener rather than an artificial sweetener.

Multiple choice

What is the main carbohydrate in legumes?

  1. Starch

  2. Sucrose

  3. Glucose

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

Starch is the main carbohydrate in legumes.

Multiple choice

What is the primary function of carbohydrates in the body?

  1. Building and repairing tissues

  2. Storing energy

  3. Regulating body temperature

  4. Producing hormones
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Carbohydrates are the body's primary source of energy. They are broken down into glucose, which is then used for energy by cells throughout the body.

Multiple choice

What is the main carbohydrate found in legumes and pulses?

  1. Starch

  2. Fiber

  3. Sugar

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The main carbohydrate found in legumes and pulses is starch.

Multiple choice

What is the primary sugar found in milk?

  1. Glucose

  2. Fructose

  3. Sucrose

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

The primary sugar found in milk is lactose. Lactose is a disaccharide composed of glucose and galactose. It is responsible for the sweet taste of milk and is also a source of energy for the body.

Multiple choice

What is the primary sugar found in milk?

  1. Glucose

  2. Fructose

  3. Lactose

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

Lactose is the primary sugar found in milk, and it is a disaccharide composed of glucose and galactose.

Multiple choice

What is the primary ingredient in stevia, a popular sugar substitute?

  1. Sucralose

  2. Erythritol

  3. Steviol glycosides

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

Stevia is a natural sweetener derived from the leaves of the stevia plant. Its sweetness comes from steviol glycosides, which are extracted and purified to create a sugar-free alternative.

Multiple choice

Which sugar-free sweetener is known for its minty, cooling taste?

  1. Monk fruit extract

  2. Allulose

  3. Xylitol

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

Xylitol is a sugar alcohol that is naturally found in some fruits and vegetables. It has a minty, cooling taste and is often used as a sugar substitute in chewing gums, candies, and baked goods.