Question

question 4
the formation of sucrose involves the removal of a molecule of water. this is called
hydrolysis.
oxidation.
decomposition.
dehydration synthesis.

question 5
the type of lipoprotein associated with \bad\ cholesterol and the production of atherosclerotic changes in blood vessels is:
hdl.
ldl.
vhdl.
none of the above.

question 6
which of the following is not one of the major groups of organic substances in the human body?
proteins
salts
lipids
nucleic acids

Explanation:

• Question 4: Dehydration synthesis is a chemical reaction where a water molecule is removed to form a larger molecule. Sucrose is formed by joining two monosaccharides through dehydration synthesis.
• Question 5: LDL (low - density lipoprotein) is associated with "bad" cholesterol and can contribute to atherosclerotic changes in blood vessels. HDL is "good" cholesterol. There is no VHDL in the common lipoprotein classifications.
• Question 6: Proteins, lipids, and nucleic acids are major groups of organic substances in the human body. Salts are inorganic compounds.

Answer:

• Question 4: D. dehydration synthesis
• Question 5: B. LDL
• Question 6: B. Salts