Chemical composition in cell

Which of the following is NOT TRUE about cohesion force and adhesion force?

• Cohesion force and adhesion force work in opposite directions

• Adhesion force refers to the force between water molecules and other surfaces

• Cohesion force refers to the force between water molecules

• Cohesion force and adhesion force work together and enable water to go up a tube

Which of the following causes polarity of water?

• The concentration of shared electrons is more at the oxygen atom

• The ionic bonds between hydrogen atoms and oxygen atoms

• The disulphide bonds between water molecules

• The ratio of hydrogen to oxygen which is 2:1

Which of the following properties enables water to act as a universal solvent?

• Adhesion force

• Cohesion force

• High specific heat capacity

• Polarity

Why are monosaccharides considered the main source of energy compared to disaccharides and polysaccharides?

• The amount of energy released is much higher

• Disaccharides and polysaccharides are not stable

• Energy is produced faster

• Disaccharides and polysaccharides are easier to digest

Which of the following is NOT a polymer of glucose?

• Cellulose

• Glycogen

• Starch

• Cholesterol

Monomers that build carbohydrate polymers such as starch are called .....

• monosaccharides

• fatty acids

• nucleotides

• glycerols

Which of the following is the main polysaccharide storage in plants?

• Glycogen

• Cellulose

• Starch

• Glucose

Muscle cells store energy in the form of ......

• Cellulose

• Glycogen

• Starch

• Steroid