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 final product of glycogenolysis?

  1. Glucose-1-phosphate

  2. Glucose-6-phosphate

  3. Fructose-1,6-bisphosphate

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

Glycogenolysis results in the release of glucose-1-phosphate, which is further converted into glucose-6-phosphate and then enters glycolysis.

Multiple choice

What is the process of glycogen mobilization called?

  1. Glycogenesis

  2. Glycogenolysis

  3. Gluconeogenesis

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

Glycogenolysis refers to the process of breaking down glycogen into glucose molecules for energy production.

Multiple choice

Which enzyme is responsible for the conversion of glucose-1-phosphate to glucose-6-phosphate?

  1. Glycogen phosphorylase

  2. Glycogen synthase

  3. Glucose-6-phosphatase

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

Phosphoglucomutase catalyzes the conversion of glucose-1-phosphate to glucose-6-phosphate, which can then enter glycolysis.

Multiple choice

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

  1. Sucrose

  2. Glucose

  3. Fructose

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

Fruits and vegetables naturally contain various types of sugars, including sucrose, glucose, and fructose.

Multiple choice

What is the main component of mycelium-based materials?

  1. Cellulose

  2. Lignin

  3. Chitin

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

Mycelium-based materials are made from the vegetative part of fungi, which primarily consists of chitin, a biodegradable and renewable polymer.

Multiple choice

Which enzyme is commonly used in the industrial production of high-fructose corn syrup?

  1. Glucose isomerase

  2. Amylase

  3. Cellulase

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

Glucose isomerase is an enzyme employed in the conversion of glucose, derived from corn starch, into fructose, resulting in the production of high-fructose corn syrup, a common sweetener used in various food and beverage products.

Multiple choice

Which enzyme is commonly used in the industrial production of ethanol from corn?

  1. Amylase

  2. Glucose isomerase

  3. Cellulase

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

Amylase is an enzyme employed in the industrial production of ethanol from corn. It breaks down the starch present in corn into glucose, which is then fermented by yeast to produce ethanol.

Multiple choice

What is the name of the metabolic pathway that converts acetyl-CoA derived from fatty acid oxidation into glucose?

  1. Glycolysis

  2. Gluconeogenesis

  3. Glycogenesis

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

Gluconeogenesis is the metabolic pathway that converts acetyl-CoA derived from fatty acid oxidation into glucose, allowing the body to produce glucose from non-carbohydrate sources.

Multiple choice

Which of the following is NOT a key raw material used in industrial biotechnology for the production of chemicals and materials?

  1. Glucose

  2. Sucrose

  3. Starch

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

Petroleum is derived from fossil fuels and is not a renewable resource, unlike glucose, sucrose, and starch, which are obtained from plant biomass.

Multiple choice

Which enzyme is utilized in the production of high-fructose corn syrup?

  1. Glucose oxidase

  2. Xylanase

  3. Invertase

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

Glucose isomerase is the enzyme responsible for converting glucose into fructose, resulting in high-fructose corn syrup.

Multiple choice

Which enzyme is commonly used in the production of bioethanol from starch?

  1. Amylase

  2. Glucoamylase

  3. Cellulase

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

Amylase is the primary enzyme responsible for breaking down starch into smaller sugar molecules, which can then be fermented to produce bioethanol.