51. Our major foods, fibres, spices, fruits and beverage crops are
A. flowering plants
B. gymnosperms plants
C. pteridophytes
D. bryophytes
✅ The correct answer is option A.
Biology MCQs
52. Phloem is a tissue found in
A. reproductive organs of animals
B. plants
C. insects
D. mammals
✅ The correct answer is option B.
53. Nymph is the name of young one of
A. butterfly
B. beetle
C. housefly
D. cockroach
✅ The correct answer is option D.
54. Pyorrhoea is a disease of the
A. nose
B. gums
C. heart
D. lungs
✅ The correct answer is option B.
Pyorrhoea, or periodontal disease, to give it a proper medical term, is a disease of the gums, it is one of the most widely prevalent diseases. It affects the membrane surrounding the roots of the teeth and leads to loosening of the teeth, pus formation, and shrinkage of the gum. This disease is the primary cause for tooth loss among adults.
Pyorrhoea, or periodontal disease, to give it a proper medical term, is a disease of the gums, it is one of the most widely prevalent diseases. It affects the membrane surrounding the roots of the teeth and leads to loosening of the teeth, pus formation, and shrinkage of the gum. This disease is the primary cause for tooth loss among adults.
55. Most abundant tissues of our body are
A. muscular
B. connective
C. epithelial
D. nervous
✅ The correct answer is option B.
56. Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with
A. all gymnosperms, except conifers
B. only angiosperms
C. only conifers
D. angiosperms and all gymnosperms except conifers
✅ The correct answer is option C.
57. Norepinephrine increases
A. respiration
B. urine production
C. saliva production
D. blood pressure
✅ The correct answer is option D.
58. Neurospora is used as genetic material because
A. it has short life cycle of 10 days
B. the product of single meiosis can be easily analysed
C. meiotic products are linearly arranged in the form of ordered tetrads
D. is a diploid fungus
✅ The correct answer is option A.
59. Most of the red, blue and purple colours of plants are due to a pigment called
A. anthocyanin
B. carotene
C. chlorophyll
D. xanthophylls
✅ The correct answer is option A.
Anthocyanin – A blue, violet, or red flavonoid pigment found in plants.
Anthocyanin – A blue, violet, or red flavonoid pigment found in plants.
60. One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor’s statement?
A. Having waited a day, it is too late to take an antibiotic
B. You need an antiseptic, not an antibiotic
C. You need to be vaccinated instead of taking an antibiotic
D. You are infected by a virus
✅ The correct answer is option D.