This topic contains a solution. Click here to go to the answer

Author Question: Describe/summarize the four major stages of catabolism. ... (Read 170 times)

genevieve1028

  • Hero Member
  • *****
  • Posts: 601
Describe/summarize the four major stages of catabolism.

Question 2

What percentage of people in poor countries do not have enough to eat?
 a. 12
  b. 14
  c. 16
  d. 18



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

durant1234

  • Sr. Member
  • ****
  • Posts: 338
Answer to Question 1

 Stage 1: complex molecules are broken down into their fundamental building blocks.
glycogenolysis  glycogen  glucose
proteolysis  protein  amino acids
lipolysis  triglycerides  fatty acids and glycerol molecules
 Stage 2: glucose, amino acids, fatty acids, and glycerol enter specific pathways in which each is converted into an intermediate product that can enter the citric acid cycle.
 Stage 3: intermediate products formed during Stage 2 enter the citric acid cycle and are broken down further to form carbon dioxide, releasing energy in the process. Much of the energy released during Stage 3 of metabolism is transferred to the coenzymes NAD+ and FAD, forming NADH + H+ and FADH2, respectively. In addition, small amounts of ATP are formed via substrate phosphorylation.
 Stage 4: begins when NADH + H+ and FADH2 enter the electron transport chain. The energy-yielding pathways of oxidative phosphorylation operate in nearly all cells to produce energy for cellular activities.

Answer to Question 2

c




genevieve1028

  • Member
  • Posts: 601
Reply 2 on: Aug 20, 2018
Great answer, keep it coming :)


ultraflyy23

  • Member
  • Posts: 312
Reply 3 on: Yesterday
Excellent

 

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

For a complete list of videos, visit our video library