Chem/Water/Macros Quiz Review

Fill in the blank: Organic molecules are all ______ based

• carbon

• hydrogen

• oxygen

• nitrogen

Explain the process of dehydration synthesis as shown in the diagram.

• Dehydration synthesis involves the removal of water to form a bond between molecules.

• Dehydration synthesis involves the addition of water to break a bond between molecules.

• Dehydration synthesis is a process that requires oxygen to form a bond between molecules.

• Dehydration synthesis is a process that releases carbon dioxide as a byproduct.

The role of water in the hydrolysis process as depicted in the diagram is:

• to act as a solvent

• to break chemical bonds

• to provide energy

• to act as a catalyst

True or False: The form of an organic molecule determines its function.

• True

• False

What is the monomer of carbohydrates?

• monosaccharides

• disaccharides

• polymers

• polysaccharides

Fill in the blank: Starches are very valuable because they provide a quick form of ______ for the body.

• energy

• protein

• fiber

• vitamins

The process of detecting sugars in food using a simple lab test is known as:

• Benedict's test

• Biuret test

• Iodine test

• Sudan III test

Which of the following is used for structural support in plants?

• cellulose

• glucose

• lactose

• sucrose

What happens to a food containing starch when iodine is placed on it?

• The food turns yellow.
• The food dissolves completely.
• The food becomes crunchy.
• The food turns blue-black.

Lipids are a type of what and what is their function in the body?

• Carbohydrate; Provide energy

• Protein; Build muscle

• Fat; Store energy and insulate

• Vitamin; Support immune function