Biology MCQs
1. Which among the following cells is capable to develop in any of the type of cell?
[A] Endothelial
[B] Endodermal
[C] Stem
[D] None of the above
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Correct Answer: C [Stem]
Notes:
A stem cell is a cell with the unique ability to develop in any of the type of cell. In the future they may be used to replace cells and tissues that have been damaged or lost due to disease.
2. In which of the following diseases copper accumulates in tissues ?
[A] Fabry disease
[B] Canavan disease
[C] Wilson’s disease
[D] Gunther disease
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Correct Answer: C [Wilson’s disease]
Notes:
Wilson’s disease is a genetic disorder in which excess copper builds up in the body. Symptoms are typically related to the brain and liver. Some of the symptoms are vomiting, weakness, fluid build up in the abdomen, swelling of the legs, etc.
3. The Red color of Red wine is mainly because of _____?
[A] Chemicals in Wine
[B] Pigments
[C] Color blended
[D] Ageing
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Correct Answer: B [Pigments]
Notes:
The Red color of Red wine is mainly because of pigments such as anthocyanin. Anthocyanin is present in many fruits like plums, blueberries, and cherries.
4. The term Cyberknife is most closely associated with which among the following?
[A] Magnetic Resonance
[B] Cancer Surgery
[C] Software Security
[D] Remote sensing
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Correct Answer: B [Cancer Surgery]
Notes:
The term Cyberknife is most closely associated with cancer surgery. It is a radiation therapy device used to deliver radiosurgery for the treatment of benign tumors, malignant tumors and other medical conditions.
5. In which among the following plants, seeds germinate and seedlings grow while still attached to their mother plant?
[A] Onion
[B] Rhizophora
[C] Sheesham
[D] Cycas
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Correct Answer: B [ Rhizophora]
Notes:
The phenomenon is found in Mangrove Plants and is known as Vivipary and Rhizophora belongs to that category.
6. Uptake of glucose in the intestines in humans can take place when ___:
[A] The concentration of glucose in blood is more than intestines
[B] The concentration of glucose in blood is less than intestines
[C] The concentration of glucose in blood is equal to intestines
[D] In all the above conditions
Show Answer
Correct Answer: D [ In all the above conditions]
Notes:
This question is based upon active transport process in which the movement of a substance against its concentration gradient (from low to high concentration). In all cells, this is usually concerned with accumulating high concentrations of molecules that the cell needs, such as ions, glucose and amino acids. If the process uses chemical energy, such as from adenosine triphosphate (ATP), it is termed primary active transport. Secondary active transport involves the use of an electrochemical gradient. Active transport uses energy, unlike passive transport, which does not use any type of energy. Active transport is a good example of a process for which cells require energy. Examples of active transport include the uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plants. Please note that glucose uptake can take place in any of the conditions mentioned in three statements. Method of glucose uptake differs throughout tissues depending on two factors; the metabolic needs of the tissue and availability of glucose. The two ways in which glucose uptake can take place are facilitated diffusion (a passive process) and secondary active transport (an active process which indirectly requires the hydrolysis of ATP).
7. How many calories of energy is released by a boiled egg?
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Correct Answer: B [78]
Notes:
One large hard-boiled egg contains 78 calories. Eating one hard-boiled egg provides 4 percent of your daily caloric needs based on a 2,000-calorie diet. One large hard-boiled egg has 78 calories, 6 grams of protein and 5 grams of total fat.
8. Which of the following clearly define Pyrilla?
[A] Disease of teeth and gums
[B] An insect pest
[C] A character of ancient Greek mythology
[D] A building heated by solar energy
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Correct Answer: B [An insect pest]
Notes:
Adult Pyrilla perpusilla is a pale tawny-yellow, soft-bodied insect with head prominently drawn forward to form a snout. Both adults and nymphs are very active and suck sap from the leaves of sugarcane. On the slightest disturbance, they jump from leaf to leaf.
9. Which one of the following diseases is caused due to defective genes?
[A] Ulcer
[B] Haemophilia
[C] Diabetes
[D] Cancer
Show Answer
Correct Answer: B [Haemophilia]
Notes:
Haemophilia is a mostly inherited genetic disorder that impairs the body’s ability to make blood clots, a process needed to stop bleeding. This results in people bleeding longer after an injury, easy bruising, and an increased risk of bleeding inside joints or the brain.
10. Who is considered the father of modern Taxonomy?
[A] Lamarck
[B] Artistotle
[C] Carl Linnaeus
[D] John Ray
Show Answer
Correct Answer: C [Carl Linnaeus]
Notes:
Carl Linnaeus is the father of modern Taxonomy. Linnaeus, in his book System Naturae, has divided all living beings into two kingdoms – the plant kingdom and the animal kingdom.
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