The schematic representation shows the energy flow of maize meal fed to a pregnant farm animal. Define the energy represented by A, label B, state one function of E, and calculate C.

Biology
The schematic representation shows the energy flow of maize meal fed to a pregnant farm animal. Define the energy represented by A, label B, state one function of E, and calculate C.

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Answer

23.4~MJ

2.6.1
Energy represented by A is the energy absorbed by the animal after digestion, which is the gross energy minus the faecal energy.
Digestible energy

2.6.2
Label B represents the energy lost through urine.
Urinary energy

2.6.3
Energy represented by E is net energy, which is used for maintenance and production. Since the animal is pregnant, a function would be for the growth of the fetus.
Fetal growth / Production / Maintenance

2.6.4
Step 1: Calculate the digestible energy (A).

Digestibleenergy(A)=Grossenergy−FaecalenergyDigestible energy (A) = Gross energy - Faecal energy Digestibleenergy(A)=37.2 MJ−9.8 MJ=27.4 MJDigestible energy (A) = 37.2~MJ - 9.8~MJ = 27.4~MJ

Step 2: Calculate the metabolizable energy (C).

Metabolizableenergy(C)=Digestibleenergy(A)−(Gasesandurinaryenergy(B))Metabolizable energy (C) = Digestible energy (A) - (Gases and urinary energy (B)) Metabolizableenergy(C)=27.4 MJ−4 MJ=23.4 MJMetabolizable energy (C) = 27.4~MJ - 4~MJ = 23.4~MJ

23.4 MJ\boxed{23.4~MJ}

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2.6.1 Energy represented by A is the energy absorbed by the animal after digestion, which is the gross energy minus the faecal energy.

The schematic representation shows the energy flow of maize meal fed to a pregnant farm animal. Define the energy represented by A, label B, state one function of E, and calculate C.
Biology

This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.

ScanSolve AI Answer
2.6.1 Energy represented by A is the energy absorbed by the animal after digestion, which is the gross energy minus the faecal energy. Digestible energy 2.6.2 Label B represents the energy lost through urine. Urinary energy 2.6.3 Energy represented by E is net energy, which is used for maintenance and production. Since the animal is pregnant, a function would be for the growth of the fetus. Fetal growth / Production / Maintenance 2.6.4 Step 1: Calculate the digestible energy (A). Digestible energy (A) = Gross energy - Faecal energy Digestible energy (A) = 37.2~MJ - 9.8~MJ = 27.4~MJ Step 2: Calculate the metabolizable energy (C). Metabolizable energy (C) = Digestible energy (A) - (Gases and urinary energy (B)) Metabolizable energy (C) = 27.4~MJ - 4~MJ = 23.4~MJ 23.4~MJ