General Science Questions

Q:

Which gas in the atmosphere is essential for respiration?

A) Argon B) Carbon dioxide
C) Oxygen D) Nitrogen
 
Answer & Explanation Answer: C) Oxygen

Explanation:

Inhaling of oxygen and releasing of carbon dioxide to make our living is the process called as respiration. We know that, air is a mixture several gases like 78% of nitrogen, 21% of oxygen and several other gases with watervapour.

 

Hence, Oxygen is essential for respiration process.

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Q:

The end products of glycolysis are

A) ATP B) NADH
C) Pyruvate D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Glycolysis involves the breaking down of a sugar into more manageable compounds in order to produce energy.

 

The net end products of glycolysis are two Pyruvate, two NADH, and two ATP.

 

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Q:

What is the term for classifying and grouping organisms?

A) Homology B) Taxonomy
C) Biology D) Zeology
 
Answer & Explanation Answer: B) Taxonomy

Explanation:

The term for classifying and grouping organisms is Taxonomy. It is the science of defining and naming groups of biological organisms on the basis of shared characteristics.

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Q:

Oxygen released during photosynthesis comes from

A) Sugar B) Water
C) Co2 D) Pyruvic acid
 
Answer & Explanation Answer: B) Water

Explanation:

Oxygen released during photosynthesis comes from splitting of water.

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Q:

Which of the following statements about water is false?

A) There is extensive intramolecular hydrogen bonding in the condensed phase. B) Water is oxidized to oxygen during photosynthesis.
C) Ice formed by heavy water sinks in normal water. D) Water can act both as an acid and as a base.
 
Answer & Explanation Answer: A) There is extensive intramolecular hydrogen bonding in the condensed phase.

Explanation:

Water possess intermolecular hydrogen bonding in the condensed phase.

 

Hence, the given statement 'There is extensive intramolecular hydrogen bonding in the condensed phase.' about water is FALSE.

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Q:

The goals of psychology are to

A) describe the behavior B) control the behavior
C) predict the behavior D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The main goals of psychology are four. They are::

 

1. To describe,

2. To explain,

3. To predict (and)

4. To control the behavior and mental processes of others.

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Q:

By definition a clade is

A) monophyletic B) polyphyletic
C) parsimonious D) paraphyletic
 
Answer & Explanation Answer: A) monophyletic

Explanation:

A clade is a group of ancestral species and all its descendants. Hence it is a branch of one same species and so monophyletic.

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Q:

Molten rock inside the earth is called

A) Mantle B) Core
C) Magma D) Lava
 
Answer & Explanation Answer: C) Magma

Explanation:

Molten rock inside the earth is called Magma.

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