1. Least generative power is a feature of which among the following cells of Human Body?
[A] Brain
[B] Bones
[C] Skin
[D] Liver
Show Answer
Correct Answer: A [Brain]
Notes:
The human brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system. It is considered to have the Least generative power.
2. Actinomycetes are good source of which of the following ?
[A] Vitamins
[B] Antihistamines
[C] Antibiotics
[D] Antibodies
Show Answer
Correct Answer: C [Antibiotics]
Notes:
The Actinobacteria are a phylum of Gram-positive bacteria. They can be terrestrial or aquatic. It is known to produce a wide variety of industrially and medically relevant compounds like Antibiotics, etc.
3. Which among the following is caused by Virus?
[A] Mumps
[B] Beri Beri
[C] Tuberculosis
[D] Dysentery
Show Answer
Correct Answer: A [Mumps]
Notes:
Mumps is caused by Virus. Mumps is a viral infection that affects the salivary glands that’s easily preventable by a vaccine. Initial signs and symptoms include fever, muscle pain, headache, poor appetite, and feeling generally unwell.
4. Anesthesia which allows patients to undergo surgery without the distress and pain they would otherwise experience, has been practiced by man since ancient times. Which among the following plant is the most ancient source of anesthesia preparations?
[A] Opium (poppy)
[B] Cannabis
[C] Datura
[D] Coca
Show Answer
Correct Answer: A [Opium (poppy)]
Notes:
Anesthesia which allows patients to undergo surgery without the distress and pain they would otherwise experience, has been practiced by man since ancient times. Opium (poppy) is the most ancient source of anesthesia preparations.
5. Which of the following statements is NOT true regarding the Vitamin C?
[A] Only Vitamin C is to be taken externally, all others are produced in the human body.
[B] Vitamin C is the only vitamin which is also a hormone.
[C] Scurvy is caused by the deficiency of Vitamin C
[D] Vitamin C is a water-soluble vitamin.
Show Answer
Correct Answer: B [Vitamin C is the only vitamin which is also a hormone.]
Notes:
Vitamin C is a water-soluble vitamin. Scurvy is caused by the deficiency of Vitamin C. Human body cannot produce vitamin C hence it is taken externally. Vitamin C is not a hormone.
6. Penicillin’ which is used as an antibiotic is obtained from :
[A] Bacteria
[B] Fungi
[C] algae
[D] Lichens
Show Answer
Correct Answer: B [Fungi]
Notes:
Penicillin is derived from the mold Penicillium, specifically Penicillium chrysogenum. Discovered by Alexander Fleming in 1928, it was the first true antibiotic and revolutionized medicine by effectively treating bacterial infections. Its use importantly reduced mortality rates from bacterial diseases during and after World War II.
7. The phenomenon due to which animal sweat to reduce temperature and change electrolyte concentration is called:
[A] Homeorhesis
[B] Homeostasis
[C] Apoptosis
[D] Necrobiosis
Show Answer
Correct Answer: B [ Homeostasis]
Notes:
The phenomenon that causes animals to sweat to reduce temperature and change electrolyte concentration is homeostasis. When core body temperature increases, sweat glands respond by cooling the skin. Blood vessels also dilate, which allows the body to release more heat. Sweating is a rare ability in the animal kingdom. For example, rats don’t sweat when their core body temperature rises to 41°C. However, they do sweat in response to pilocarpine and other cholinergic agonists.
8. In human body, the regulation of RBC production is accomplished by a harmone which is secreted by __:
[A] Liver
[B] Bone marrow
[C] Kidney
[D] Pancreas
Show Answer
Correct Answer: C [ Kidney]
Notes:
The regulation of RBC production is accomplished by the Erythropoietin hormone secreted by the kidneys.
9. Which plants grow well only in light?
[A] Heliophytes
[B] Xerophytes
[C] Sciophilous
[D] Epiphytes
Show Answer
Correct Answer: A [Heliophytes]
Notes:
Sunstroke plants or heliophytes are adapted to a habitat with a very intensive insolation, because of the construction of its own structure and maintenance. Heliophytes, for example, are mullein, ling, thyme and soft velcro, white clover, and most roses.
10. Guttation takes place due to the development of which of the following?
[A] Cells
[B] Transpiration
[C] Root pressure
[D] All of the above
Show Answer
Correct Answer: C [Root pressure]
Notes:
Guttation takes place due to the development of root pressure. Guttation is the exudation of drops of xylem sap on the tips or edges of leaves of some vascular plants, such as grasses and a number of fungi.
