A&P 2 Lab 9 HW

The carbon dioxide released by the lungs into the atmosphere was very likely produced within __________.

the citric acid cycle

Alcohol is a toxic substance. Which organs are most affected by excessive alcohol use?

liver brain stomach

In oxidative phosphorylation, energy for the synthesis of ATP is directly obtained from the

movement of hydrogen ions through channels in the inner mitochondrial membrane

Which of the following occurs when water is released (lost) during a reaction?

dehydration synthesis

Most of the ATP from metabolism is produced in the

electron transport system

Figure 25-1 The Citric Acid CycleUse Figure 25-1 to answer the following question: What is the molecule labeled "3"?

NADH

How is ATP used in our bodies?

The energy released from ATP is converted into kinetic energy to do work

Oxygen is an important molecule in which of the following?

citric acid cycle and ETS

The energy produced from aerobic metabolism comes from what two sources? (Figure 25-5)

citric acid cycle and the electron transport chain

The energy stored in ATP comes from which of the following?

food molecules

During the citric acid cycle, both NAD and FAD ________ a hydrogen atom and become ________.

gain; reduced

Although other nutrients can feed into the citric acid cycle, ________ yields energy the quickest.

glucose

Drag the labels onto the flowchart to indicate how food molecules reach the body's cells and fuel cellular respiration. Start with the ingestion of food on the left.

-Eating food provides fuel & building blocks for your body -After food is broken down in the digestive system, it is transport to cells via the circulatory system -Fuel molecules are broken down further in glycolysis & the citric acid cycle (aka krebs cycle) -ATP is produced with the help of the electron transport chain

Drag the labels to the appropriate location in the figure.

Diet -> fats, carbs, proteins fats -> lipolysis, lipogenesis carbs -> glycogenesis, glycogenolysis, gluconeogenesis proteins -> protein synthesis

Growth and repair involve primarily what type of reactions?

anabolic

Figure 25-1 The Citric Acid CycleUse Figure 25-1 to answer the following question: What is the molecule labeled "2"?

carbon dioxide

Figure 25-1 The Citric Acid CycleUse Figure 25-1 to answer the following question: What is the molecule labeled "1"?

pyruvate