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in the calculation to determine metabolizable energy, which of the following is

ID: 221595 • Letter: I

Question

in the calculation to determine metabolizable energy, which of the following is subtracted from gross energy:
1- Heat
2- milk or eggs
3- body tissue
4 fences and urine
5- CO2

when amino acids and fartty acids are said to be essential, they are:
1- required to the diet.
2- required by the organism for normal function
3- are not synthesized during metabolism
4- all of the above
5- none of the above
what cellular process allows for maintaining of the chromosome number in animals from one generation to the next
1- mitosis
2- meiosis

Explanation / Answer

1. During every biochemical reaction, some amount of energy is lost in the form of heat energy.

Therefore, to determine the metabolazible energy, amount of heat energy must be subtracted from the gross energy.

Therefore, option 1(heat) is correct.

2. When amino acids and fatty acids are considered to be essential, they are:

Therefore, option 4(all of the above) is correct.

3. In animals, mitotic cell division is seen only in diploid somatic cells. Mitosis maintains the chromosomal number constantly from parents to off springs.

Meiosis maintains the specific chromosome number of each species constantly from generation to generation in sexually reproducing organisms. It also increases genetic variability in the population, which is very important in the process of evolution.

Therefore, option 2(meiosis) is correct.