1. Which among the following is not present in pure sugar ?
[A] Carbon
[B] Hydrogen
[C] Nitrogen
[D] Oxygen
Show Answer
Correct Answer: C [Nitrogen]
Notes:
Pure Sugar is sucrose C12H22O11.
2. 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.
3. Which among the following has the highest content of Vitamin E of any food that has not undergone prior preparation or vitamin fortification?
[A] Wheat germ oil
[B] Rice germ oil
[C] Oat bran oil
[D] Sunflower oil
Show Answer
Correct Answer: A [Wheat germ oil]
Notes:
Wheat germ oil is extracted from the germ of the wheat kernel, which makes up only 2.5% by weight of the kernel. It has the highest content of Vitamin E.
4. The cultivation of which of the plants on wastelands has a potential to generate biofuel in large quantities?
[A] Jatropha curcas
[B] Copaifera langsdorffii
[C] Camelina sativa
[D] None of the above
Show Answer
Correct Answer: A [Jatropha curcas]
Notes:
The cultivation of Jatropha curcas on wastelands has a potential to generate biofuel in large quantities. It is a species of flowering plant in the spurge family called Euphorbiaceae, that is native to the American tropics, most likely in Mexico and Central America.
5. Which among the following is NOT a true bast fiber?
[A] Jute
[B] Hemp
[C] Flax
[D] Cotton
Show Answer
Correct Answer: D [Cotton]
Notes:
Please note that Bast Fibers are obtained from Phloem
6. Which among the following indicates Vitamin B12?
[A] Niacin
[B] Pyridoxine
[C] Cobalamine
[D] Thiamine
Show Answer
Correct Answer: C [Cobalamine]
Notes:
Cobalamine indicates Vitamin B12. It is a water-soluble vitamin and plays an essential role in the production of your red blood cells and DNA, as well as the proper functioning of our nervous system.
7. Which among the following is correct definition of Bacteriophage?
[A] A Bacteria that destroys Virus
[B] A Virus that destroys Bacteria
[C] A Bacteria that destroys another bacteria
[D] A Bacteria that destroys Fungi
Show Answer
Correct Answer: B [A Virus that destroys Bacteria]
Notes:
Bacteriophage a virus that parasitizes a bacterium by infecting it and reproducing inside it. Bacteriophages are commonly used in genetic research. They are composed of proteins that encapsulate a DNA or RNA genome, and may have structures that are either simple or elaborate.
8. Which of the following statements is incorrect about large intestine?
[A] It secretes a number of hormones
[B] Villi is absent in large intestine
[C] It takes part in the absorption of water from the indigestible residue
[D] The colon is also called the large intestine
Show Answer
Correct Answer: A [ It secretes a number of hormones]
Notes:
First statement is incorrect because secretion of hormones is absent in large intestine. Small intestine secretes hormones. Other three statements are correct.
9. Why does the peepal tree continuously produce oxygen?
[A] C3 Photosynthesis
[B] C4 Photosynthesis
[C] Crassulacean Acid Metabolism
[D] Carbon Cycle Rebalancing
Show Answer
Correct Answer: C [Crassulacean Acid Metabolism]
Notes:
Peepal tree has the capability to absorb CO² at night due to Crassulacean Acid Metabolism (CAM). It’s a photosynthesis pathway primarily found in desert plants and epiphytes (those that live on larger trees). During the day, CAM plants break down the malate created at night and use the released CO² to create sugars, similar to C3 plants. But, CAM, being energy inefficient, is used only under certain conditions. It seems that peepal trees use CAM when they are epiphytic and switch to C3 photosynthesis when they settle in the soil.
10. Which of the following is most inclusive category of classification among others?
[A] Order
[B] Class
[C] Phylum
[D] Family
Show Answer
Correct Answer: C [ Phylum ]
Notes:
The higher the classification category, the more inclusive it is. Here phylum is highest so is most inclusive.
