Questions

Q:

Select the correct statement about cellular respiration?

A) All the carbon atoms in glucose ultimately incorporated during cellular respiration into carbon dioxide molecule B) All the carbon atoms in glucose ultimately incorporated during cellular respiration into NADH molecule
C) All the carbon atoms in glucose ultimately incorporated during cellular respiration into ATP molecule D) All the carbon atoms in glucose ultimately incorporated during cellular respiration into water molecule
 
Answer & Explanation Answer: A) All the carbon atoms in glucose ultimately incorporated during cellular respiration into carbon dioxide molecule

Explanation:

All the carbon atoms in glucose ultimately incorporated during cellular respiration into carbon dioxide molecules.

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Filed Under: Biology
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Q:

Cells with similar markers stick together and function as

A) Organs B) Tissues
C) Systems D) Organisms
 
Answer & Explanation Answer: B) Tissues

Explanation:

A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function.

 

Hence, Cells with similar markers stick together and function as tissues.

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Filed Under: Biology
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Q:

The main theme of a fugue is called the

A) Subject B) Melody
C) Episode D) Exposition
 
Answer & Explanation Answer: A) Subject

Explanation:

In music, a fugue is a contrapuntal compositional technique in two or more voices, built on a subject that is introduced at the beginning in imitation and which recurs frequently in the course of the composition. 

Hence, the main theme of a fugue is called the subject.

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Q:

Kyoto protocol expired in which of the following year?

A) 2008 B) 2012
C) 2010 D) 2009
 
Answer & Explanation Answer: B) 2012

Explanation:

Kyoto protocol expired in 2012

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Q:

In which year Bartholomew Diaz reached Cape of Good Hope ?

A) 1480 B) 1487
C) 1495 D) 1500
 
Answer & Explanation Answer: B) 1487

Explanation:

Bartholomew Diaz reached the point in 1487, which the Portuguese named Cape of Good Hope (the southern most point of Africa).

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Filed Under: World History

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Q:

Which is a characteristic of a Mixture?

A) a pure substance B) chemically comined
C) they can be mixed in some fixed ratio D) it is either homogenous or heterogenous
 
Answer & Explanation Answer: D) it is either homogenous or heterogenous

Explanation:

A mixture is the blending of two or more dissimilar substances.

 

Characteristics of a Mixture:

1. It has No formula.

2. It is an impure sustance

3. They can be mixed in any ratio.

4. The properties of the mixture are the properties of its constituents.

5. Constituents can e easily seperated by physical methods.
eg: Heating, Drying, Crystallization, Distillation etc...

6. It is either homogenous or heterogenous.

 

A major characteristic of mixtures is that the materials do not chemically combine. Mixtures can be divided into those that are evenly distributed (homogeneous) and those that aren't (heterogeneous).

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Filed Under: Chemistry
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Q:

Which of the following chemical compounds has the highest boiling point?

A) Dimethyl ether (CH3OCH3) B) Methanol (CH3OH)
C) Methane (CH4) D) None
 
Answer & Explanation Answer: B) Methanol (CH3OH)

Explanation:

Chemical Compounds with stronger intermolecular forces have higher boiling points.

 

The order of strengths of intermolecular forces is:

 London dispersion < dipole-dipole < H-bonding

 

Methane (CH4) — London dispersion forces

Dimethyl ether (CH3OCH3) — dipole-dipole attractions

Methanol (CH3OH) — hydrogen bonding

Therefore, Methanol - CH3OH with H-Bonding have highest Boiling Point among the given chemical compounds.

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Filed Under: Chemistry
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Q:

Autocorrect was originally designed to replace

A) Misspelled words B) Grammatically incorrect
C) Repetitive words D) All of the above
 
Answer & Explanation Answer: A) Misspelled words

Explanation:

autocorrect_was_originally_designed_to_replace1561613833.jpg image

 

Autocorrect was originally designed to replace Misspelled words. Its purpose is as part of the spell checker to correct common spelling or typing errors, saving time for the user. It is commonly found in word processors and text editing interfaces for smartphones, computers, etc.

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