Biology KSSM Chapter 4, 5 & 6

Which of this statement did not describe about organic compounds?

• Containing the element of carbon
• Carbon important to form strong covelent bonds with other elements 
• Examples are carbohydrates, proteins, lipids, carbon dioxide and nucleic acids
• Consist of small molecules and large molecules

Which of this statement did not explain about the important of water?

• Water act as solvent
• Water used as medium for biochemical reaction
• Water help to maintenance of stable internal environment
• Water is low surface tension

Which of this examples not belong to monosaccharide group?  

• Lactose
• Glucose
• Fructose
• Galactose

What is the process called when disaccharide break to their constituent monosaccharides? 

• Condensation
• Melting
• Hydrolysis
• Evaporation

What test will carry out to indicated reducing sugar?

• Iodin solution
• Benedict solution
• Millon test
• Filter papedr

Which of the part did not belong to nucleotide?

• A nitrogenous base
• Amino group
• A phosphate group
• Pentose

which cell involved in protein synthesis and genetic material of some viruses?

• Chromatin
• DNA
• RNA
• Ribosomes

Two amino acid join together in condensation process known as........

• Polypeptides
• Secondary peptides
• Primary peptides
• Dipeptides

How triglyceride being form?

• One glycerol join with 3 molecules of fatty acid
• One glycerol join with 2 molecules of fatty acid
• One glycerol join with 1 molecules of fatty acid
• Three glycerol join with 3 molecules of fatty acid

Which of this statement false about unsaturated fatty acid?

• Contain double bond
• Ability to react with additional hydrogen atoms
• Melting point lower
• cause diseases of heart