Biology 2.1-3
Assuming they all had the same number of carbon atoms, which of the following has the most C-H bonds?
A saturated fat
Which property of water makes it a good transport medium?
Bipolar structure
Which of the following is true about glycogen and starch?
Both are polysaccharides.
Which of the following represents a hydrolysis reaction?
Breaking the bonds between two dipeptides
In the formation of a macromolecule, what type of reaction would join two subunits together?
Condensation
Which of the following reactions occurs when a dipeptide is formed from amino acids?
Condensation
Animals store glucose in the form of ________ .
Glycogen.
What property of water makes it a good evaporative coolant?
High latent heat of evaporation
What causes water to have a relatively high boiling point?
Hydrogen bonds between water molecules
Which of the following features are correct for hydrogen bonding? I. It is involved in the cohesion of water. II. It results in the thermal properties of water. III. It is a bond within the water molecule.
I and II only
Which of the following substances are organic? I. Phospholipids II. Oxygen III. Carbon dioxide
I only
Which of these molecules is a disaccharide? I. Sucrose II. Lactose III. Maltose
I, II and III
Which of the following statements about water is false?
Molecules of water are linked by covalent bonds.
Which of the following affirmations is wrong?
Non-polar substances are transported in blood because they dissolve in water.
Which of the following is an organic compound found in both plant and animal cells?
Pyruvate
Which of the following molecules is a monosaccharide?
Ribose
What is the difference between ribose and lactose?
Ribose is a monosaccharide and lactose is a disaccharide.
Which of the following statements about water is correct?
The cooling effect of perspiration is caused by the very large heat of vaporization of water.
Which of the following is true about covalent bonds?
They are formed by the sharing of equal numbers of electrons by two atoms.
What is the maximum number of fatty acids that can be condensed with glycerol?
Three
Which of the following statements about water is correct?
Water molecules are polar, therefore cholesterol does not dissolve in water.
A hydrocarbon is said to be saturated if:
each internal carbon atom is covalently bonded to two hydrogen atoms.
Triglycerides contain _______ .
fatty acids
Glucose is a __________.
monosaccharide
The hydrolysis of one molecule of a triglyceride to glycerol and fatty acids:
requires three molecules of water.
The synthesis of polysaccharides from monosaccharides
results in the formation of water.
A catalyst will make a reaction _______.
speed up
The synthesis of polysaccharides results in:
the formation of water molecules.
