Biology MCQs

Biology MCQs for MDCAT and other tests


NUTRITION:

1: Chlorosis in plants is caused by a lack of __________________

A: Oxygen

B: Iron

C: Nitrogen

D: Calcium

see answer

B: Iron


2. The exception is: All of these are micronutrients in plants.

A: Hydrogen

B: Chlorine

C: Iron

D: Copper

see answer

A: Hydrogen


3: Plants use……….to synthesise proteins.

A: Oxygen

B: Vitamins

C: Carbon dioxide

D: Nitrates

see answer

D: Nitrates


4: What occurs to food once it is within the stomach?

A: No digestion occurs in the stomach.

B: The food moves quickly into the small intestine.

C: Juices mix with the food and stomach muscles squeeze lt.

D: The food is completely digested and is absorbed into the circulatory system.

see answer

C: Juices mix with the food and stomach muscles squeeze lt.


5:………….doesn’t create digestive juices.

A: Esophaguss

B: Stomach

C: intestine

D: Pancreas

see answer

A: Esophagus


6: The big intestine is where______________is absorbed:

A: Water

B: Vitamins

C: Salts

D: All of these

see answer

D: All of these


7. Saliva fails to:

A: Start digestion of proteins

B: Secrete saliva

C: Help in the lubrication

D: Make taste possible

see answer

A: Start digestion of proteins


8: The cardiac sphincter is the name of the valve between:

A: Stomach and duodenum

B: Esophagus and stomach

C: Duodenum and ileum

D: Jejunum and caecum

see answer

B: Esophagus and stomach


9. Liver functions include:

A: Metabolism of carbohydrates, lipids, and proteins

B: Breakdown of mature red blood cells.

C: Detoxification of the chemicals

D: All of the above

see answer

D: All of the above


10: The following foods are digested by pepsin:

A: Carbohydrates

B: Proteins

C: Vitamins

D: Fats

see answer

D: Fats


11. The true answer to the problem is explained.

A. Observations

 B. Hypothesis

C. Data

D. Conclusion

see answer

D. Conclusion


12: Humans contract plasmodium via

A. Anopheles

B. Culex

C. Aedes

D. All of these

see answer

A. Anopheles


13. Who was the first to discover plasmodium in the blood of a malaria patient?

A. Ronald Ross

B. Laveran

C. A. F.A. king

 D. Mendel

see answer

B. Laveran


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