Biology Molecules Of Life
10 Questions
| Attempts: 121
Questions and Answers
- 1.Which of the followings is a monosaccharide?
- A.
Glucose
- B.
Sucrose
- C.
Starch
- D.
Glycerol
- 2.Which of the following is the correct base-pairing in DNA?
- A.
G—T, A—C
- B.
G—C, A—T
- C.
T—U, A—G
- D.
G—C, A—U
- 3.Which of the following substances is not included in a phospholipid molecule?
- A.
Fatty acid
- B.
Glycerol
- C.
Phosphate
- D.
Deoxyribose
- 4.Disaccharides are formed by combining two molecules of monosaccharide through
- A.
Condensation.
- B.
Hydrolysis.
- C.
Photosynthesis.
- D.
Respiration.
- 5.What is the function of iron in organisms?
- A.
Formation of haemoglobin
- B.
Formation of chlorophyll
- C.
Formation of protein
- D.
Formation of bones
- 6.Which of the following does not show positive result for Benedict's test?
- A.
Glucose
- B.
Fructose
- C.
Lactose
- D.
Sucrose
- 7.Why is glucose applied to a patient through intravenous injection when the patient is unable to eat or drink?
- A.
Glucose is sweet in taste.
- B.
Glucose has a reducing property.
- C.
Glucose is readily absorbed by body cells.
- D.
Glucose is easily extracted.
- 8.Which of the following is insoluble?
- A.
Fructose
- B.
Sucrose
- C.
Maltose
- D.
Glycogen
- 9.Which of the following substances is used in all living cells to release energy?
- A.
Glycogen
- B.
Glucose
- C.
Oxygen
- D.
Vitamin
- 10.Which of the following statements about DNA molecules is incorrect?
- A.
They are mainly found in the cytoplasm.
- B.
They are copied and passed to the offspring during reproduction.
- C.
They determine the types of proteins produced.
- D.
They make up genes.
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