20 Questions
What type of reactions are involved in metabolism?
Both catabolic and anabolic reactions
Where is excess glucose stored in the body?
In the liver and skeletal muscle as glycogen
Which molecule provides more ATP, glucose, or triglycerides?
Triglycerides
What happens to excess proteins in the body during starvation mode?
They are broken down into amino acids for energy
What can glucose intermediates be used to make in different tissues?
Glycerol, fatty acids, or certain amino acids based on tissue enzymes expressed
Glucose from complex carbohydrates is primarily used for energy storage in the liver and skeletal muscle.
False
Proteins are broken down into fatty acids during protein synthesis.
False
Glycogen is broken down into glucose for energy storage in the liver and skeletal muscle.
True
Triglycerides provide less ATP than glucose when broken down into glycerol and fatty acids.
False
Excess proteins are directly used for energy production in the body during normal metabolic conditions.
False
Triglycerides from fats can be broken down into glycerol and fatty acids for ______ storage
energy
Proteins are broken down into amino acids for protein ______
synthesis
Excess glucose can be stored as ______ through an anabolic reaction in the liver and skeletal muscle
glycogen
Glucose intermediates can be used to make glycerol, fatty acids, or even converted into certain amino acids in different ______ depending on the enzymes expressed
tissues
Glucose from complex carbohydrates like starch is broken down in the digestive system, absorbed into the blood, and used for cellular respiration to produce ______
ATP
Match the following with their correct descriptions:
Catabolic reactions = Involve breakdown of molecules Cellular respiration = Uses glucose to produce ATP Triglycerides = Provide significantly more ATP than glucose Protein synthesis = Involves breaking down proteins into amino acids
Match the following with their correct roles in metabolism:
Anabolic reactions = Involve building of molecules Glycogen = Stored as excess glucose in the liver and skeletal muscle Amino acids = Broken down from excess proteins for energy in starvation mode Glucose intermediates = Can be used to make glycerol, fatty acids, or certain amino acids in different tissues
Match the following with their correct functions in the body:
ATP production = Result of cellular respiration using glucose Energy storage = Function of storing excess glucose as glycogen or breaking down triglycerides Protein breakdown = Process of breaking down proteins into amino acids for various uses Glucose breakdown = Conversion of complex carbohydrates like starch into usable energy
Match the following nutrient breakdown products with their sources:
Glycerol and fatty acids = Breakdown products of triglycerides from fats Amino acids = Result of breaking down proteins for energy or protein synthesis Glucose intermediates = Can be used to make glycerol, fatty acids, or certain amino acids in different tissues Glucose from complex carbohydrates = Broken down in the digestive system for energy production
Match the following metabolic pathways with their outcomes:
Excess glucose storage = Anabolic reaction forming glycogen in the liver and skeletal muscle Protein catabolism = Breaking down proteins into amino acids for energy during starvation mode Triglyceride breakdown = Provides significantly more ATP than glucose for energy storage Glucose intermediates utilization = Conversion into glycerol, fatty acids, or certain amino acids based on tissue-specific enzyme expression
Study Notes
- Metabolism involves catabolic reactions (breakdown of molecules) and anabolic reactions (building of molecules) in the body.
- Glucose from complex carbohydrates like starch is broken down in the digestive system, absorbed into the blood, and used for cellular respiration to produce ATP.
- Excess glucose can be stored as glycogen through an anabolic reaction in the liver and skeletal muscle.
- Triglycerides from fats can be broken down into glycerol and fatty acids for energy storage, with triglycerides providing significantly more ATP than glucose.
- Proteins are broken down into amino acids for protein synthesis, with excess proteins broken down into amino acids for energy in starvation mode.
- Glucose intermediates can be used to make glycerol, fatty acids, or even converted into certain amino acids in different tissues depending on the enzymes expressed.
Explore the concepts of catabolic and anabolic reactions in metabolism. Learn how glucose, triglycerides, and proteins are processed in the body for energy production, storage, and building molecules.
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