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DerKrebs [107]
3 years ago
8

Which of these is a pure substance that cannot be broken down by a chemical reaction?

Biology
1 answer:
irga5000 [103]3 years ago
4 0
An element is a pure substance that cannot be broken down by a chemical reaction.
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What is the purpose of pcr in microsatellite genotyping?.
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Answer:

Below:

Explanation:

PCR was used for the amplification of the microsatellite. This technique can increase the rate of mutations in the genome by errors during amplification that is known as PCR noise [19].

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Match the tissue with its primary fuel source: 1) brain A) fatty acids 2) resting skeletal muscle B) glucose 3) heart C) glucose
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Answer:

a) 1:B; 2:C; 3:A; 4:B; 5:C

Explanation:

Primary fuel source for tissues can be defind as the source of energy required for proper functioning of different tissues.

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Primary fuel source in resting skeletal muscle are glucose, fatty acids, amino acids that depends on the muscular activity and further participate in the citric acid cycle for oxidation to CO2.

Primary fuel of heart is fatty acids which carry important beta-oxidation equipment and serve as fuel for heart functions.

Glucose is the primary source of energy for adipose tissue which on breakdown contribute to ATP synthesis.

Liver utilises fatty acids, glucose and amino acids as primary fuel source.  When glucose is present in high quanity, it converted into fatty acids.

Hence, the correct option is a) 1:B; 2:C; 3:A; 4:B; 5:C

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3 years ago
Which best describes where the scientist who have contributed our scientific knowledge were located?
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Brownian motion is due to:
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Answer:

B. The random movement of pollen granules suspended in water.

Explanation:

Brownian motion is the irregular movement of particles suspended in a liquid or a gas, and it is usually caused when there is a bombardment of the particles by the molecules in the liquid or gas.

The Brownian motion who was named after Robert Brown, first experimented the random movement of pollen grains in water; therefore the movement of pollen grains or granules suspended in water.

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