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- 1. Multiple ChoiceWhich of this statement did not explain about the important of water?Water act as solventWater used as medium for biochemical reactionWater help to maintenance of stable internal environmentWater is low surface tension
- 2. Multiple ChoiceWhich of this examples not belong to monosaccharide group?LactoseGlucoseFructoseGalactose
- 3. Multiple Choice
What is the product when a molecule of sucrose is broken down by using one molecule of water?
Glucose and glucose
Glucose and fructose
Glucose and galactose
Fructose and galactose
- 4. Multiple Choice
Which of the following is NOT an example of reducing sugar?
Glucose
Lactose
Sucrose
Galactose
- 5. Multiple Choice
Which of the part did not belong to nucleotide?
Nitrogenous base
Amino group
Phosphate group
Pentose sugar
- 6. Multiple Choice
Which of the following is true about the differences between DNA and RNA?
DNA is double stranded while RNA is single stranded
DNA has deoxyribose sugar while RNA has oxyribose
Nitrogenous base in DNA are A,T,G and C while RNA are A, U, G and C.
DNA contain in the nucleus only while RNA is in the cytoplasm only.
- 7. Multiple Choice
What is the monomer for a protein?
Nucleotide
Galactose
Fatty acid
Amino acid
- 8. Multiple Choice
Which of the following is not fat?
Glycogen
Steroid
Phospholipid
Wax
- 9. Multiple Choice
Which of the following is true about saturated fat?
Has one more double bond in a chain
Solid at room temperature
Liquid at room temperature
Has low cholesterol
- 10. Multiple Choice
What is the polymer for nucleic acid?
Nucleotide
Polynucleotide
Polypeptide
DNA
- 11. Multiple Choice
Carbohydrate X is a type of simple sugar. It has sweet taste. It can reduce copper (II) ions in Benedict’s solution into copper (I) ions. It is a kind of monomer. What is X?
Maltose
Lactose
Galactose
Sucrose
- 12. Multiple Choice
Based on the above diagram, what is the property of this molecule?
Polar
Non-polar
Hydrophobic
Neutral
- 13. Multiple Choice
The equation below shows the breakdown process of disaccharides.
Maltose + Water → Glucose + Glucose
This reaction is called?
Dialysis
Condensation
Hydrolysis
Assimilation
- 14. Multiple Choice
Which of the following answers is not the function of protein molecule within human body?
Heat insulator
Antibody maker
Energy source
Enzymes
- 15. Multiple Choice
The conformation of a protein molecule can be destroyed by heat. It is called protein ________________.
condensation
damage
termination
denaturation
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