1. Fatigue is caused because of formation and depositing of which among the following acids in Muscles?
[A] Lactic Acid
[B] Acetic acid
[C] Citric Acid
[D] Pyruvic acid
Show Answer
Correct Answer: A [Lactic Acid]
Notes:
Fatigue is caused because of formation and depositing of Lactic acid, or lactate which is a chemical by product of anaerobic respiration which is the process by which cells produce energy without oxygen around.
2. What are the two categories of cell which nervous system is made up of__?
[A] Satellite cell and Boettcher cell
[B] neurons and glial cells
[C] Gastric chief cell, Parietal cell
[D] Tendon cell and Macula densa cell
Show Answer
Correct Answer: B [neurons and glial cells]
Notes:
The Nervous system is made up of two types of cells: Glia, which regulate homeostasis, providing support and protection to the function of neurons and Neurons, which transmit signals between them and from one part of the body to another.
3. Which among the following is the correct location of Adrenal Glands in Human Body?
[A] Above kidneys
[B] Below kidneys
[C] Above Medulla Oblongata
[D] Near Pancreases
Show Answer
Correct Answer: A [Above kidneys]
Notes:
Each adrenal gland is located on the top of each kidney (forming a hat-like structure on the top of the kidneys). Each adrenal gland has two parts viz. outer cortical portion and inner adrenal cortex. Further, there is a central part called adrenal medulla.
4. Which among the following disease is called by Yersinia pestis?
[A] Leprosy
[B] Anthrax
[C] Plague
[D] Dengue
Show Answer
Correct Answer: C [Plague]
Notes:
Plague is an infectious disease caused by Yersinia pestis bacteria. It is usually found in small mammals and their fleas. The disease is transmitted between animals via their fleas. As it is a zoonotic bacterium, it can also transmit from animals to humans.
5. Where does the formation of Urea takes place in our body ?
[A] Pancreas
[B] Kidney
[C] Liver
[D] Lungs
Show Answer
Correct Answer: C [Liver]
Notes:
The formation of Urea takes place in Liver. Urea which is also known as carbamide, is a waste product of many living organisms. It is the major organic component of human urine.
6. From which part, Coconut coir is obtained?
[A] Epicarp
[B] Mesocarp
[C] Endocarp
[D] Seed
Show Answer
Correct Answer: B [Mesocarp]
Notes:
Coir is the nature fibre obtained from mescocarp of the coconut fruit. Coconut fruit has three layers viz. Exocarp, MesoCarp and Endocarp. Exocarp is the outer green layer, Mesocarp is the fleshy, which becomes husk on drying middle layer and endocarp is the inner woody layer.
7. Which of the following diseases is caused by consumption of a wheat bread contaminated with a fungus called Claviceps purpurea?
[A] Lathyrism
[B] Ergotism
[C] Cinchonism
[D] Mushroom Poisoning
Show Answer
Correct Answer: B [ Ergotism]
Notes:
Cleviceps purpurea is an important ascomycete that grows on the grains of rye grass cereals. It produces the drug ergot, which is both a severe poison and a useful medicinal drug. It affects the central nervous system as well as causes the contraction of involuntary muscle. Ergotism, caused by eating infected rye bread, was common in the Middle Ages, when it was known as “St. Anthony’s Fire.
8. Which of the following clearly defines the meaning of Plankton?
[A] A kind of fish
[B] A submerged platform in waters
[C] Drifting of organisms in a body of water
[D] A kind of animal living under water
Show Answer
Correct Answer: C [Drifting of organisms in a body of water]
Notes:
Planktons are very small plants and animals that float on the surface of the sea and on which other sea animals feed.
9. Which among the following is the characteristic feature of virus?
[A] It is made of fats
[B] It multiplies only on dead animals
[C] It multiplies only on hosts
[D] It lacks chlorophyll
Show Answer
Correct Answer: C [It multiplies only on hosts]
Notes:
They are unique because they are only alive and able to multiply inside the cells of other living things. The cell they multiply in is called the host cell. A virus is made up of a core of genetic material, either DNA or RNA, surrounded by a protective coat called a capsid which is made up of protein.
10. Mitochondrial DNA in an individual comes from which of the following sources?
[A] Male parent
[B] Female parent
[C] Both parents
[D] Neither of the parents
Show Answer
Correct Answer: C [Both parents]
Notes:
Mitochondrial DNA is the small circular chromosome found inside mitochondria. The mitochondria, and thus mitochondrial DNA, are passed almost exclusively from mother to offspring through the egg cell. Electron microscopy reveals mitochondrial DNA in discrete foci.
