객관식
Which of the following correctly states the relationship between anabolic and catabolic pathways?
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3. Energy & Cell Processes
Introduction to Metabolism
1:25분문제 11
교과서 질문
Explain how your body can convert excess carbohydrates in the diet to fats. Can excess carbohydrates be converted to protein? What else must be supplied?
검증된 단계별 안내1
Step 1: Understand that excess carbohydrates are first converted into glucose, which is used for immediate energy needs or stored as glycogen in the liver and muscles.
Step 2: Once glycogen stores are full, additional glucose is converted into acetyl-CoA through glycolysis and the citric acid cycle.
Step 3: Acetyl-CoA serves as a building block for fatty acid synthesis, which occurs in the liver and adipose tissue, leading to the formation of triglycerides (fats) for long-term energy storage.
Step 4: Recognize that excess carbohydrates cannot be directly converted into proteins, as proteins are made from amino acids, which must be obtained from dietary proteins or synthesized from other amino acids.
Step 5: Note that for protein synthesis, essential amino acids must be supplied through the diet, as the body cannot synthesize them from carbohydrates or fats.
비슷한 문제에 대한 검증된 영상 답변:이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
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1m주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Carbohydrate Metabolism
Carbohydrate metabolism refers to the biochemical processes that convert carbohydrates into energy. When carbohydrates are consumed, they are broken down into glucose, which can be used immediately for energy or stored as glycogen in the liver and muscles. When glycogen stores are full, excess glucose can be converted into fatty acids through a process called lipogenesis, leading to fat storage.
추천 영상:
가이드 코스
02:17
Introduction to Metabolism
Lipogenesis
Lipogenesis is the metabolic pathway through which excess carbohydrates are converted into fatty acids and subsequently stored as fat in adipose tissue. This process occurs primarily in the liver and adipose tissue when there is an abundance of glucose and energy, allowing the body to store energy for future use. Hormones like insulin play a crucial role in promoting lipogenesis after carbohydrate-rich meals.
Protein Synthesis and Nitrogen Balance
Protein synthesis is the process by which cells build proteins from amino acids, which are the building blocks of proteins. While carbohydrates can be converted into fats, they cannot be directly converted into proteins. For protein synthesis to occur, essential amino acids must be supplied through the diet, and a positive nitrogen balance is necessary, meaning that the intake of nitrogen (from proteins) exceeds its loss.
추천 영상:
가이드 코스
02:50Proteins
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