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4 years ago

How should the nutritionist explain why fats cannot be directly converted into carbohydrates?

1 answer:

7 0

Fats cannot be directly converted into carbohydrates during gluconeogenesis, glucose is created from oxaloacetate. However, oxaloacetate generated from fats occurs via the citric acid cycle. Because carbons from fats must enter the citric acid cycle as acetyl CoA first, fats can only indirectly become carbohydrates.

Option B

Explanation:

Gluconeogenesis is the process by which glucose is produced in body from non carbohydrate sources like fat, amino acids etc. This process involves the conversion of each and every product into oxaloacetate and then conversion of oxaloacetate into pyruvate and then the reverse process of Glycolysis is followed.

The concentration of oxaloacetate and ADP maintains the process. An increased amount of both of them supports the gluconeogenesis. But all products must undergo citric acid cycle to get converted into oxaloacetate. So fats are indirectly converted into glucose.

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Name the substance that can help a reaction to proceed without being used up in the reaction.

Marta_Voda [28]

I believe the answer is excess reactant?

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3 years ago

A 825 g iron block is heated to 352 degrees C and is placed in an insulated container (of negligible heat capacity) containing 4

Stella [2.4K]

Answer : The final equilibrium temperature of the water and iron is, 537.12 K

Explanation :

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

$q_1=-q_2$

$m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)$

where,

$c_1$ = specific heat of iron = 560 J/(kg.K)

$c_1$ = specific heat of water = 4186 J/(kg.K)

$m_1$ = mass of iron = 825 g

$m_2$ = mass of water = 40 g

$T_f$ = final temperature of water and iron = ?

$T_1$ = initial temperature of iron = $352^oC=273+352=625K$

$T_2$ = initial temperature of water = $20^oC=273+20=293K$

Now put all the given values in the above formula, we get:

$(825\times 10^{-3}kg)\times 560J/(kg.K)\times (T_f-625K)=-(40\times 10^{-3}kg)\times 4186J/(kg.K)\times (T_f-293K)$

$T_f=537.12K$

Therefore, the final equilibrium temperature of the water and iron is, 537.12 K

8 0

3 years ago

Is oxygen ionic or molecular

Luba_88 [7]

Answer:

morlecular element is oxygen

7 0

3 years ago

Read 2 more answers

Find a total pressure of the gas mixture that contains forecast is with partial pressure of 5.00 kPa, 4.56 kPa 356 kPa and 678KP

Orlov [11]

Answer: 1044 kPa

Explanation: To find the total pressure of a system, you add up all the partial pressures. 5.00+4.56+356+678=1043.56, but since you need to account for significant figures it is 1044.

In addition, the amount of significant figures is the number with the smallest amount of decimal places. In this case you have no decimal places, since 356 and 678 have no decimal places. Remember that for the numbers 0-4 you round down and 5-9 you round up.

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3 years ago

How is CCl4 non polar?

Vinvika [58]

The four bonds of carbon tetrachloride (CCl4) are polar, but the molecule isnonpolar because the bond polarity is canceled by the symmetric tetrahedral shape. When other atoms substitute for some of the Cl atoms, the symmetry is broken and the molecule becomes polar

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4 years ago

Read 2 more answers