Biology Practice Question and Answer
8 Q: RBCs do not perform aerobic respiration because these do not contain
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63cfbd67e144980db72402f3- 1Mitochondriatrue
- 2Nucleusfalse
- 3Endoplasmic reticulumfalse
- 4Lysosomesfalse
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Answer : 1. "Mitochondria "
Q: What are the mechanisms affecting in polio disease?
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60363433a0666c3c8505f6ce- 1circulatory systemfalse
- 2emission systemfalse
- 3nervous systemtrue
- 4Respiratory systemfalse
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Answer : 3. "nervous system"
Q: ______ is caused when a child’s growing bones fail to develop due to a lack of vitamin D.
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64b17e342d3130f57524cb8c- 1Night blindnessfalse
- 2Ricketstrue
- 3Goitrefalse
- 4Scurvyfalse
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Answer : 2. "Rickets"
Explanation :
1. Rickets occurs when a child's growing bones do not develop due to vitamin D deficiency.
2. Vitamin D is an essential nutrient that helps in the absorption of calcium and phosphate.
3. Symptoms of rickets include.
- Pain and tenderness in the bones of the feet and hands
- curvature in the bones of the legs
- pain in shoulders and hips
- muscle weakness
- delayed development Q: What percentage of body weight of an adult human is contributed by muscles?
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63cfbc420d9e560db8e68a8f- 120-30%false
- 210-20%false
- 340-50%true
- 430-40%false
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Answer : 3. "40-50%"
Q: What is a diphyodont type of dentition?
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63c7b9221e8e3f3e1a35d1e2- 1Two types of teeth onlyfalse
- 2Two phase of gums and teethfalse
- 3Three types of teethfalse
- 4Two sets of teeth during lifetrue
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Answer : 4. "Two sets of teeth during life"
Q: The hard chewing surface of the teeth is____
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63c7cc6abdbddb32fd9d4eae- 1Enameltrue
- 2Tonguefalse
- 3Frenulumfalse
- 4Papillaefalse
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Answer : 1. "Enamel "
Q: What is the loss of bone density and strength known as?
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64b181c8568e7ff594a2d32b- 1Osteoporosistrue
- 2Acromegalyfalse
- 3Fibrous dysplasiafalse
- 4Fracturefalse
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Answer : 1. "Osteoporosis"
Explanation :
1. Decrease in bone density and strength is called osteoporosis.
2. Osteoporosis is a condition in which bones become weak and brittle.
3. Women suffer from osteoporosis more often than men.
Q: Which organ does detoxification and produces chemicals needed for digestion?
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62de6cbbdc73b0303fb4ed15- 1Thyroid glandfalse
- 2Livertrue
- 3Salivary glandsfalse
- 4Pancreasfalse
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