General Science Questions

Q:

What stage occurs after cytokinesis?

A) S - phase B) G1 phase
C) G2 phase D) All of the above
 
Answer & Explanation Answer: B) G1 phase

Explanation:

It is the Interphase, which occurs after cytokinesis. And in interphase we have 3 stages likely G1, G2 and S phase. After cytokinesis we get G1 phase.

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Q:

Appetite is triggered by

Answer

Appetite is the desire to eat food or in short feeling of hunger. Appetite is triggered by the time of day, the smell, taste and texture of food, the culture in which one is raised.

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Q:

What is the role of NADP+ in photosynthesis?

Answer

NADP - Nicotinamide Adenine Dinucleotide Phosphate is one of the carrier molecules that transfers high-energy electrons from chlorophyll to other molecules.


NADP+ is the molecule that accepts the electrons given by water. Its reduction by the protein FNR (Ferredoxin NADP+ reductase) gives NADPH,H+.


 


NADPH,H+ can be used in the Calvin Cycle to reduce 1,3-Biphosphoglycerate (1,3-BPG) into Glyceraldehyde-3-phosphate (G3P), a monosaccharide. It becomes NADP+ again and the cycle keeps repeating as long as the chloroplast receives sufficient and appropriate light.

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Q:

Energy travels from Sun to Earth through

A) conduction B) convection
C) radiation D) modulation
 
Answer & Explanation Answer: C) radiation

Explanation:
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2 2077
Q:

One who eats everything

A) Carnivores B) Omnivores
C) Herbivores D) Omniscient
 
Answer & Explanation Answer: B) Omnivores

Explanation:

One the person or a animal who eats everything i.e, no kind of food is refused are called as Omnivores.

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Q:

Which fibre is also called as artificial silk?

A) Nylon B) Rayon
C) Polyester D) Acrylic
 
Answer & Explanation Answer: B) Rayon

Explanation:
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Q:

The HIV virus weakens the immunity of a person because it destroys

A) mast cells B) platelets
C) erythrocytes D) lymphocytes
 
Answer & Explanation Answer: D) lymphocytes

Explanation:

The    HIV    virus    continuously    invades    and destroys  T-cells  (lymphocytes).  Eventually  the body can't replace the T-cells fast enough, and the  immune  system  deteriorates.  When  the immune  system has deteriorated to the point that it is unable to fight off diseases, a person is diagnosed with AIDS.

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Q:

If the orbit of a planet is an ellipse then what is the point at which the Sun is located called?

A) Centre B) Circumcentre
C) Incentre D) Focus
 
Answer & Explanation Answer: D) Focus

Explanation:
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