Chemical Composition In A Cell

Why is water is considered as a universal solvent?

• It can dissolve a lot of solutes

• It can be drink

• It can attract many molecule

• It can store many energies

Which of the following statements are true about the properties of water?

I. Water molecule able to dissolve a lot of ionic compounds

II. Water helps to maintain our body temperature by absorbing the energy

III. Water molecules have repelled each other through a cohesive force

IV. Water is a polar molecule

• I, II and III

• I, II and IV

• II, III and IV

• All the above

All of this are monosaccharide except:

• Galactose

• Sucrose

• Glucose

• Fructose

The carbohydrate that stored in animal cell is called __________.

• Glycogen

• Starch

• Glucose

• Cellulose

Which of these processes represents the sequences for the complete hydrolysis of protein?

• Protein – Dipeptide – Amino acid – Polypeptide

• Protein – Polypeptide – Dipeptide – Amino acid

• Protein – Dipeptide – Polypeptide – Amino acid

• Protein – Polypeptide – Amino acid – Dipeptide

Process X turns amino acid into dipeptide and water. What is process X?

• Protein synthesis

• Hydrolysis

• Condensation

Which of these compounds are lipid?

• Glycogen and phospholipid

• Cellulose and steroid

• Glycogen and cellulose

• Phospholipid and steroid

All this statement is true about the saturated fat except:

• Exist in solid form at room temperature

• Contain nonpolar molecule

• Made up of glycerol and fatty acid

• Have at least one double bond between carbon

The nucleotide consists of a pentose sugar (5-carbon sugar), a nitrogenous base and a phosphate group that are combined through the __________ process.

• Protein synthesis

• Hydrolysis

• Condensation

Which of these nitrogenous base pair are correct?

I. Cytosine (C) and Thymine (T)

II. Adenine (A) and Guanine (G)

III. Guanine (G) and Cytosine (C)

IV. Thymine (T) and Adenine (A)

• I and II

• III and IV

• I and III

• II and IV