Part 1 The enzyme responsible for the synthesis of ATP is Mu

Part 1

The enzyme responsible for the synthesis of ATP is

Multiple choice

ATP-ase.

cytochrome C.

NADPH.

ATP synthase.

Part 2

The terminal electron acceptor in the electron transport chain is water.

True/Fale

Part 3

Alex, Kim, and Jenna have different levels of activity, and thus require a varied amount of calories per day. Alex is an athlete, and he requires 3500 calories per day to fuel his high intensity activity. Jenna is a secretary and is sedentary most of her day. Her low level of activity requires a mere 1800 calories a day, while Kim, a professional dancer, needs 2800 calories per day to fuel her moderate level of activity.
  

Jenna

Kim

Alex

Profession

Secretary

Professional Dancer

Athlete

Level of Activity

Low

Moderate

High

Caloric Needs

1800 Calories/Day

2800 Calories/Day

3500 Calories/Day

Fats are broken down in cellular respiration to generate the ATP needed to fuel our bodies. According to the Food and Drug Administration (FDA), the Percent Recommended Daily value for fats in a balanced diet should not exceed more than 30% of the total daily calorie intake. Fats provide 9 calories per gram.

Nutritional needs of Jenna

What question would this calculation answer?
Finding 30% of 1800 calories and then dividing by 9 calories per gram.
1800 calories x 0.30 = 440 calories
440 calories/9 calories per gram = 49 grams

Multiple Choice

How many grams of fat can Jenna consume in one meal?

How many fat calories can Jenna consume each day?

How many calories are found in 9 grams of fat?

How many grams of fat can Jenna consume each day?

Part 4

Proton pumps are protein complexes that

Multiple Choice

synthesize water from hydrogen and oxygen.

break down water into hydrogen and oxygen.

move hydrogen ions across cell membranes.

move electrons through the cell membrane.

Part 5

As protons move through the proton pump,

Multiple Choice

the membrane becomes more permeable to the hydrogen ions.

the concentration of hydrogen ions inside and outside the cell reaches equilibrium.

they build up on one side of the membrane, producing a concentration gradient.

conformational changes occur within the membrane proteins.

Part 6

The transfer of hydrogen ions across the membrane generates a potential energy gradient.

True/False

	Jenna	Kim	Alex
Profession	Secretary	Professional Dancer	Athlete
Level of Activity	Low	Moderate	High
Caloric Needs	1800 Calories/Day	2800 Calories/Day	3500 Calories/Day

Solution

Part 1 Answer: ATP Synthase:

ATP synthase is a F-type ATPase. It has two functional units called F_o and F₁ unit. F_o ia a transmembrane protein while F₁is a peripheral protein. ATP synthase are lcalized in the inner mitochondrial membrane. ATP synthase catalyze the formation of ATP from ADP and Pi accompanied by the flow of protons from intermembrane space to the matrix in mitochondria.

Part 2 Answer: False

The terminal electron acceptor of electron transport chain is O_2. For every four electron passing through the electron transport chain four H⁺ combine with one O₂ to form two moecules of water.

Part 3 Answer: (Note: 30% of 1800 = 540, in your question its given 440 which is a mistake)

Qi. How many Grams of fat can jenna consume in one meal?

Answer: According to FDA, Jenna consume 540 calorie from Fat alone per day. If this is divided into 3 meals per day, Then Jenna consume 540/3 calorie that is 180 calorie per meal from fat alone. If one gram of fat yield 9 calorie than 180/9 = 20gm. Jenna consume 20 grams of fat per meal or 60 grams of fat per day.

Qii. How many fat calories can Jenna consume each day?

According to FDA 30% of the total daily diet should be fat.

Thus, Fat calories that Jenna consume each day = 30% of 1800

=540 calories

Qiii. How many calories are found in 9 grams of fat?

Answer: 1 grams of fat contains 9 calories.

Thus, 9 grams of fat contain = 9 X 9

49 calories

Qiv. How many grams of fat can Jenna consume each day?

Answer: Jenna can consume 540 calories from fat alone each day.

Thus, Jenna can consume 60 grams (540/9=60) of fat each day.

Part 4 Answer: move hydrogen ions across cell membranes.

Proton pumps are integral membrane proteins that transport H⁺ across the cell membrane. Good example of proton pums are H^+/K⁺ ATPase and ATP synthase.

----Your number of questions exceed the maximum allowed number of questions per enquiry-----

Part 5 Answer: they build up on one side of the membrane, producing a concentration gradient.

Part 6 Answer: True