Multiple Choice QuestionsWhich match is true?
| Vitamin deficiency disease | Vitamin | Source |
| Severe bleeding | Tocopherol | Milk, egg |
| Anaemia | Ascorbic acid | Lemon, orange |
| Night blindness | Retinol | Carrot, milk |
| Sterility | Calciferol | Milk, butter |
Which of the following does not come under the Class Mammals?
Flying fox
Hedgehog
Manatee
Lamprey
The black pigment in the eye which reduces the internal reflection is located in
retina
iris
cornea
sclerotic
Which of the following match is correct?
| Hormone | Effect |
| Oxytocin | Milk ejection hormone |
| Glucagon | Decreases blood sugar level |
| Adrenaline | Decreases heart rate |
| Thyroxine | Decreases BMR |
Which of the following statements regarding glucagon is false?
It is secreted by -cells of Langerhans
It acts antagonistically to insulin
It decreases blood sugar level
The gland responsible for its secretion is heterocrine gland.
Hearing impairment affects which part of brain?
Frontal lobe
Parietal lobe
Temporal lobe
Cerebellum
Virchow
Hooke
Leeuwenhoek
Brown
A.
Virchow
Rudolf Virchow was the first to suggest that new cells are formed from the division of the pre-existing cells - "omnis-cellula-e-cellula" i.e. every cell is derived from a previous cell.
Robert Hooke was the first to coin the term "cell" for small structures in a piece of cork under a microscope. His observations were published in a book named Micrographia.
Leeuwenhoek was the first person to observe and describe microscopic organisms and living cell. He observed nucleus in RBC of salmon fish and used simple lens and observed nuclei and unicellular organisms including bacteria. In 1676, he described the bacteria and gave the term animalcules. His observations laid the foundations for the science of bacteriology and microbiology. Robert Brown ( 1831) described and named nucleus.
The component of blood which prevents its coagulation in the blood vessels is
Haemoglobin
Plasma
Thrombin
Heparin
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