Biology Practice Question and Answer
8 Q: Starch and sugar in our food are forms of _____.
1266 064c22ce196ae1f4842ff082d
64c22ce196ae1f4842ff082d- 1Proteinsfalse
- 2fatsfalse
- 3vitaminsfalse
- 4carbohydratestrue
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Answer : 4. "carbohydrates"
Explanation :
1. Starch and sugar found in our food are forms of carbohydrates. Carbohydrates are an important part of our diet. They provide energy to the body and are essential for other body functions.
2. Starch is a complex carbohydrate found in plants. It is found in wheat, rice, potatoes, and other grains. Starch is used to thicken food, make sugar, and make other foods.
Q: Which one is the first heart sound?
1264 063c8f9eb8731ac33279f097b
63c8f9eb8731ac33279f097b- 1Lub during closure semilunar valvesfalse
- 2Lub during closure of atrio-ventricular valvestrue
- 3Dub during closure of atrio- ventricular valvesfalse
- 4Dub during closure of semilunarvalevesfalse
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Answer : 2. "Lub during closure of atrio-ventricular valves"
Q: The cause of Minamata disease is-
1264 05f746d274637db73283395f3
5f746d274637db73283395f3- 1Mercurytrue
- 2Cadmiumfalse
- 3Glassfalse
- 4Zincfalse
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Answer : 1. "Mercury"
Q: The yeast used in making bread is?
1259 061110c11f65c04691be9d09f
61110c11f65c04691be9d09f- 1acts as a catalyst for fermentationtrue
- 2does not help in the process of fermentationfalse
- 3acts as a protectorfalse
- 4makes it tastierfalse
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Answer : 1. "acts as a catalyst for fermentation"
Q: What is the pH of blood of a normal person?
1248 05f746f59bb26e87e5eeaee43
5f746f59bb26e87e5eeaee43- 14.5—4.6false
- 26.45—6.55false
- 37.35—7.45true
- 48.25—8.35false
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Answer : 3. "7.35—7.45"
Q: Choose the correct code.
List — I List — II
(A) Anemia 1. Vitamin B deficiency
(B) Galgontu 2. Iron deficiency
(C) Night blindness 3. Iodine deficiency
(D) Berry — Berry 4. Vitamin A deficiency
A B C D
(A) 2 1 3 4
(B) 2 3 4 1
(C) 1 2 3 4
(D) 2 3 1 4
1247 05fe9a95600e3f71b8285e4dc
5fe9a95600e3f71b8285e4dcA B C D
- 1Afalse
- 2Btrue
- 3Cfalse
- 4Dfalse
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Answer : 2. "B"
Q: The technique of printing the 3-Dimension image of any objects is called-
1246 0608b85878899c91069d288d7
608b85878899c91069d288d7- 1Hemetographyfalse
- 2Holographytrue
- 3Hexographyfalse
- 4Flex printingfalse
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Answer : 2. "Holography "
Q: The_______is at its largest in children, but with the onset of puberty, it eventually shrinks and gets replaced by fat.
1244 06411b5303218fd8d14928dd3
6411b5303218fd8d14928dd3- 1Parathyroid glandfalse
- 2Thymustrue
- 3Hypothalamusfalse
- 4Pituitary glandfalse
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Answer : 2. "Thymus"
Explanation :
1. It is at its greatest in children.
2. With puberty, it eventually shrinks and is replaced by fat.
3. It produces and secretes thymosin, an essential hormone for T cell development and production.
4. Thymus gland is a small organ located under the breast bone in the upper chest.
5. It produces white blood cells, called lymphocytes, which protect the body from infection.