2.7 - Alt Entry Points into CR

Question 1

Where do carbohydrates enter cellular respiration?

Answer 1

Complex carbohydrates are digested into simple sugars (like glucose) and fed into glycolysis

Question 2

How & where do proteins enter cellular respiration?

Answer 2

• Proteins are digested into amino acids, then the amino acid group is removed as ammonia waste (urea), in a process called deamination.
• What remains is converted into a variety of molecules like that’s used through out cellular respiration (EX: alanine can be converted into pyruvate

Question 3

How & where do lipids enter cellular respiration?

Answer 3

• Triglycerides are broken down into its parts: 1 glycerol and 3 fatty acids.
• the glycerol is converted into G3P
• the fatty acid chains are converted into many acetyl-CoA b/c due to the chains being so long
• alot of energy is produced from one triglyceride