brodidit for students
حیاتی کیمیا
دسویں جماعت · کیمیا · 5 سوالات
نام: ____________________ تاریخ: ____________
Proteins are polymers of:
- A Amino acids
- B Nucleotides
- C Fatty acids
- D Glucose
Starch is a polymer of:
- A Ethene
- B Amino acids
- C Glucose
- D Glycerol
Fats are esters of glycerol and:
- A Sugars
- B Fatty acids
- C Amino acids
- D Alcohol only
Which vitamin is fat soluble?
- A Vitamin A
- B Vitamin C
- C Vitamin B
- D Vitamin B12
Enzymes are biological:
- A Salts
- B Catalysts
- C Fuels
- D Acids
جوابی کلید
1. A, 2. C, 3. B, 4. A, 5. B
Amino acids join through peptide bonds to form proteins.
Starch is made of many glucose units.
A fat is formed from glycerol and three fatty acids.
Vitamins A, D, E and K dissolve in fat.
Enzymes speed up reactions in living things.