1. Deficiency of Tocopherol leads to sterility in males and females. The popular word for Tocopherol is ___?
[A] Vitamin B3
[B] Vitamin K
[C] Vitamin D
[D] Vitamin E
Show Answer
Correct Answer: D [Vitamin E]
Notes:
Tocopherols are a class of organic chemical compounds, many of which have vitamin E activity. Deficiency of Tocopherol leads to sterility in males and females. Tocopherol exists in four different forms designated as α, β, δ, and γ.
2. Which among the following cell organelles is essential for Cellular respiration?
[A] Endoplasmic Reticulum
[B] Golgi Body
[C] Mitochondrion
[D] Lysosomes
Show Answer
Correct Answer: C [Mitochondrion]
Notes:
Mitochondrion is essential for Cellular respiration. Mitochondria are also responsible for generating clusters of iron and sulphur. Iron and Sulphur are important cofactors of many enzymes.
3. Which among the following plays a role in production of alcohol in beer?
[A] Bacteria
[B] Protozoan
[C] virus
[D] Yeast
Show Answer
Correct Answer: D [Yeast]
Notes:
Yeast plays a role in production of alcohol in beer. Yeast is a little, single-cell organism and is one of the simplest forms of plant life. It is responsible for the fermentation process in beer.
4. Which among the following are called Thrombocytes?
[A] RBC
[B] WBC
[C] Platelets
[D] Serum
Show Answer
Correct Answer: C [Platelets]
Notes:
Thrombocytes which are also called as platelets are a component of blood whose function is to react to bleeding from blood vessel injury by clumping, thereby initiating a blood clot.
5. What is RuBisCO?
[A] A Sugar
[B] An Enzyme
[C] A Fat
[D] A Carbohydrate
Show Answer
Correct Answer: B [An Enzyme]
Notes:
Ribulose-1,5-bisphosphate carboxylase oxygenase first enzyme of Calvin Cycle of Carbon Fixation
6. The “Red Tides” which are found in marine coastal areas such as “Florida red tide” that occurs in the Gulf of Mexico, is considered to be responsible for bioaccumulation and making local filter feeding organisms such as mussels and oysters toxic. Due to which of the following the “Red Tides” Occur?
[A] Bacteria
[B] Algae
[C] Fungi
[D] Toxic Wastes of the Industries
Show Answer
Correct Answer: B [Algae]
Notes:
Red tide is a common name for algal blooms. It is the large concentrations of aquatic microorganisms, such as protozoans and unicellular algae (e.g. dinoflagellates and diatoms). The upwelling of nutrients from the sea floor following massive storms, provides for the algae and triggers bloom events.
7. The metals in which among the following groups are required in maximum quantities in a living organism?
[A] Potassium, Manganese, Molybdenum, Calcium
[B] Potassium, Molybdenum, Copper, Calcium
[C] Pottassium,Sodium, Magnesium, Calcium
[D] Sodium, Magnesium, Copper, Manganese
Show Answer
Correct Answer: C [Pottassium,Sodium, Magnesium, Calcium]
Notes:
Potassium, Sodium, Magnesium, Calcium are required in maximum quantities in a living organism.
8. 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.
9. Which of the following is correlated with blood pressure?
[A] Pancreas
[B] Liver
[C] Adrenal
[D] Testis
Show Answer
Correct Answer: C [Adrenal]
Notes:
Pheochromocytoma, a rare, usually benign, tumor of the adrenal glands resulting in the glands secreting excessive amounts of the hormones adrenaline and noradrenaline (catecholamines). This causes variable symptoms such as high blood pressure, sweating, etc.
10. Who among the following devised the Technique IVF(In vitro Fertilization)?
[A] Robert Edwards
[B] Dr. Martin Cooper
[C] Edward Jenner
[D] Sir Frank Whittle
Show Answer
Correct Answer: A [Robert Edwards]
Notes:
The early influences on Robert Edwards’ approach to the scientific research that led to human IVF are described. He founded the first IVF programme for infertile patients and trained other scientists in their techniques.
