Q1. Nitrogen Fixation is carried out primarily by

A) Humans

B) Plants

C) Bacteria

D) Consumers

✔ Correct Answer: Bacteria

View Explanation →

Q2. Which type of simple sugar is found primarily in fruit?

A) Fructose

B) Sucrose

C) Lactose

D) Maltose

✔ Correct Answer: Fructose

View Explanation →

Q4. Amoeba belongs to the phylum

A) Annelida

B) Protozoa

C) Platyhelminthes

D) Porifera

✔ Correct Answer: Protozoa

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Q5. The Mode of nutrition in which particulate food is devoured is

A) holophytic

B) holozoic

C) Parasitic

D) saprophytic

✔ Correct Answer: holozoic

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Q6. The group of crop plant that are vegetatively propagated is:

A) Sugarcane,potato and banana

B) potato,papaya and banana

C) Onion,coriander and lime

D) groundnut,drumstick and cashew nut

✔ Correct Answer: Sugarcane,potato and banana

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Q7. Infection of salivary glands by a virus leads to

A) mumps

B) tetanus

C) ulcers

D) pyorrhoea

✔ Correct Answer: mumps

View Explanation →

Q8. At what temperature do pathogenic bacteria grow best in food?

A) 15 to 25 degrees Celsius

B) 5 to 15 degrees Celsius

C) 40 to 65 degrees Celsius

D) 20 to 45 degrees Celsius

✔ Correct Answer: 20 to 45 degrees Celsius

View Explanation →

Q9. Which of the following is not a monosaccharide?

A) Glucose

B) Fructose

C) Sucrose

D) Galactose

✔ Correct Answer: Sucrose

View Explanation →

Q10. All of the following are fat-soluble vitamins except

A) Vitamin A

B) Vitamin C

C) Vitamin K

D) Vitamin D

✔ Correct Answer: Vitamin C

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Q11. Green pigment is called

A) Xanthophyll

B) Chlorophyll

C) Phycobillin

D) Carotene

✔ Correct Answer: Chlorophyll

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Q12. What happens during the S-phase of the cell cycle?

A) cell growth

B) cell division

C) protein and enzyme synthesis

D) DNA replication

✔ Correct Answer: DNA replication

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Q13. Serious dehydration may cause all of the following, EXCEPT

A) torn ligaments

B) muscle cramps

C) increased heart rate

D) reduced blood volume

✔ Correct Answer: torn ligaments

View Explanation →

Q15. Which structure is common to plant and animal cells?

A) Chloroplast

B) Centriole

C) Mitochondria

D) Central Vacuole

✔ Correct Answer: Mitochondria

View Explanation →

Q16. The technique of DNA fingerprinting in human was developed for first time by _________

A) Alec Jeffreys

B) Lalji Singh

C) J. Black

D) R. Ericson

✔ Correct Answer: Alec Jeffreys

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Q17. The molecules responsible for membrane transport are

A) Phospholipids

B) Proteins

C) Steroids

D) Carbohydrates

✔ Correct Answer: Proteins

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Q18. Where is glucose stored in the body?

A) blood

B) bones

C) None of the above

D) organs

✔ Correct Answer: blood

View Explanation →

Q19. Which of the following is not an enzyme?

A) Trypsin

B) Oxytocin

C) Ptyalin

D) Pepsin

✔ Correct Answer: Oxytocin

View Explanation →

Q20. What is the primary form of fat in the diet?

A) Fattyacids

B) Lipids

C) All of the above

D) Triglycerides

✔ Correct Answer: Triglycerides

View Explanation →
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