Biology Grade 10 MCQs Chapter 17

 Multiple-choice questions from Chapter 17. Each question is designed to test your understanding of key concepts. The correct answers are provided below each question. Let's begin!

Biotechnology & Fermentation MCQs

1. What is fermentation?

Ⓐ An aerobic respiration process
Ⓑ An anaerobic respiration process ✅
Ⓒ A process that uses sunlight to produce glucose
Ⓓ A process that breaks down proteins

2. What does anaerobic mean?

Ⓐ With oxygen
Ⓑ Without oxygen ✅
Ⓒ With sunlight
Ⓓ Without sunlight

3. Which of the following is a product of fermentation?

Ⓐ Oxygen
Ⓑ Glucose
Ⓒ Ethanol ✅
Ⓓ Water

4. What type of fermentation is used to produce yogurt?

Ⓐ Alcoholic fermentation
Ⓑ Lactic acid fermentation ✅
Ⓒ Photosynthesis
Ⓓ Cellular respiration

5. What is biotechnology?

Ⓐ The study of ancient artifacts
Ⓑ The large-scale industrial use of biological processes ✅
Ⓒ The process of growing plants without soil
Ⓓ The study of weather patterns

6. What is genetic engineering?

Ⓐ The study of genes in fossils
Ⓑ The process of altering the genetic makeup of an organism ✅
Ⓒ The process of growing plants from seeds
Ⓓ The study of ecosystems

7. What is the role of bacteria in yogurt production?

Ⓐ To produce oxygen
Ⓑ To ferment lactose into lactic acid ✅
Ⓒ To break down proteins
Ⓓ To produce glucose

8. Where does photosynthesis take place in a plant cell?

Ⓐ Nucleus
Ⓑ Mitochondria
Ⓒ Chloroplasts ✅
Ⓓ Vacuole

9. What is a vector in genetic engineering?

Ⓐ A type of enzyme
Ⓑ A carrier molecule used to introduce a gene ✅
Ⓒ A type of plant hormone
Ⓓ A process of cell division

10. What is single-cell protein (SCP)?

Ⓐ A type of animal tissue
Ⓑ A source of edible protein from microorganisms ✅
Ⓒ A type of plant fiber
Ⓓ A synthetic vitamin

11. What are the reactants in photosynthesis?

Ⓐ Glucose and oxygen
Ⓑ Carbon dioxide and water ✅
Ⓒ Protein and lipids
Ⓓ Minerals and vitamins

12. What is the role of chlorophyll?

Ⓐ To produce glucose
Ⓑ To capture sunlight energy ✅
Ⓒ To release oxygen
Ⓓ To absorb water

13. What is a host organism in genetic engineering?

Ⓐ The organism that provides the gene
Ⓑ The organism that receives the gene ✅
Ⓒ The vector molecule
Ⓓ The enzyme used to cut DNA

14. How is single-cell protein (SCP) produced?

Ⓐ By growing plants in soil
Ⓑ By culturing microorganisms in fermenters ✅
Ⓒ By extracting protein from meat
Ⓓ By synthesizing proteins in a lab

15. Which of the following is an advantage of using single-cell protein?

Ⓐ High land requirement
Ⓑ Long doubling time
Ⓒ High protein content ✅
Ⓓ Affected by weather conditions

16. What is the purpose of fermentation in yogurt production?

Ⓐ To produce oxygen
Ⓑ To curdle milk and give yogurt its texture ✅
Ⓒ To produce glucose
Ⓓ To remove water

17. What is the relationship between photosynthesis and cellular respiration?

Ⓐ They are unrelated processes
Ⓑ They are complementary processes ✅
Ⓒ Photosynthesis is a type of cellular respiration
Ⓓ Cellular respiration is a type of photosynthesis

18. What is the main purpose of genetic engineering?

Ⓐ To study fossils
Ⓑ To alter the genetic makeup of an organism ✅
Ⓒ To grow plants in water
Ⓓ To study animal behavior

19. What is a fermenter?

Ⓐ A type of plant
Ⓑ A large industrial vat used for fermentation ✅
Ⓒ A type of animal
Ⓓ A process of purifying water

20. What is biotechnology primarily used for?

Ⓐ Studying ancient plants
Ⓑ Improving industrial and medical processes ✅
Ⓒ Observing stars
Ⓓ Creating artificial weather

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