1. Which among the following is a common end product of Anaerobic Respiration?
[A] Acetic Acid
[B] Carbonic Acid
[C] Lactic Acid
[D] Hydrochloric Acid
Show Answer
Correct Answer: C [Lactic Acid]
Notes:
Lactic Acid is a common end product of Anaerobic Respiration. Anaerobic respiration is the type of respiration through which cells can breakdown sugars to generate energy in the absence of oxygen.
2. In which among the following parts of the Alimentary Canal, the Rennin enzyme is secreted?
[A] Stomach
[B] Mouth
[C] Pancreas
[D] Duodenum
Show Answer
Correct Answer: A [Stomach]
Notes:
Rennin which is also known as Chymosin, is a proteolytic enzyme related to pepsin that is synthesized by chief cells in the stomach of some animals. Its role in digestion is to curdle or coagulate milk in the stomach.
3. Which among the following diseases is also known as “Pink Eye”?
[A] Conjunctivitis
[B] Myopia
[C] Astigmatism
[D] Presbyopia
Show Answer
Correct Answer: A [Conjunctivitis ]
Notes:
Pink eye or Conjunctivitis is an irritation or inflammation of the conjunctiva, which covers the white part of the eyeball. It can be caused by allergies or a bacterial or viral infection.
4. 1 gm of which of the following will produce maximum ATPs?
[A] Protein
[B] Carbohydrate
[C] Fats
[D] Minerals
Show Answer
Correct Answer: C [Fats]
Notes:
Fats are slowest but most energy-efficient source of food. Each gram of fat provides more energy on oxidation (and thus more ATPs).
5. Which among the following controls the protein synthesis and heredity ?
[A] Amino acids
[B] Genes
[C] DNA
[D] RNA
Show Answer
Correct Answer: B [Genes]
Notes:
Genes controls the protein synthesis and heredity. It is the basic physical and functional unit of heredity and are made up of DNA. Some genes act as instructions to make molecules called proteins.
6. What would be the percentage of Glucose in the Urine of a healthy person?
[A] less than 1%
[B] More than 1%
[C] More than 0.1%
[D] 0%
Show Answer
Correct Answer: D [0%]
Notes:
The percentage of Glucose in the Urine of a healthy person is zero. A higher measurement could be a sign of a health problem. Diabetes is the most common cause of elevated glucose levels in humans.
7. What name has been given to the fear of crossing roads?
[A] Arthrophobia
[B] Atychiphobia
[C] Aichmophobia
[D] Agyrophobia
Show Answer
Correct Answer: D [Agyrophobia]
Notes:
The fear of crossing roads is called Agyrophobia. This phobia is considered to be independent from the fear of cars, as even crossing a deserted intersection still initiates the fear reaction.
8. Consider the following statements:
- Color blindness is more common in men.
- Color blindness is an X-linked recessive trait.
- If both the X chromosomes are defective, a woman may have color blindness.
Which of the above statements are correct?
[A] Only 1
[B] 1, 2 and 3
[C] 2 and 3
[D] Only 1 and 2
Show Answer
Correct Answer: B [1, 2 and 3]
Notes:
Color blindness is more prevalent in men as it is an X-linked recessive disorder. Men, having only one X chromosome, are more susceptible if it is defective. Women, with two X chromosomes, become color blind only if both carry the defective gene. All three statements accurately describe the inheritance and prevalence of color blindness.
9. Who among the following scientists is known for devising four criteria designed to establish a causal relationship between a causative microbe and a disease?
[A] Louis Pasteur
[B] Emil Behring
[C] Ivan Pavlov
[D] Robet Koch
Show Answer
Correct Answer: D [Robet Koch]
Notes:
Dr. Robert Koch was a German (Prussian) physician. In 1877 he isolated Bacillus anthracis (causative agent of Anthrax) . He also isolated Tuberculosis bacillus (Causative agent of TB) and Vibrio cholera (causative agent of Cholera). He is also known to develop Koch’s postulates, the four criteria designed to establish a causal relationship between a causative microbe and a disease. He was awarded the Nobel Prize in Physiology or Medicine for his tuberculosis findings in 1905.
10. Who put forward the “Theory of Evolution”?
[A] Aristotle
[B] Charles Darwin
[C] Louis Pasteur
[D] Isaac Newton
Show Answer
Correct Answer: B [Charles Darwin]
Notes:
“Theory of Evolution” which is also referred to as the theory of “survival of the fittest”, was proposed by Charles Darwin in On the Origin of Species in 1859 and, independently, by Alfred Wallace in 1858—although Wallace, unlike Darwin, said the human soul is not the product of evolution.
