Chapter 4

Front

How many molecules of WATER does a plant need to make one molecule of sugar?

Back

6

Front

Starch is composed of ________.

Back

branched amylopectin and unbranched amylose

Front

What is C6H12O6?

Back

glucose

Front

Because carbon has 4 valence electrons, it can:

Back

form up to 4 covalent bonds

Front

The molecular formula for glucose is C6H12O6. What would be the molecular formula for a molecule made by linking three glucose molecules together by dehydration reactions?

Back

C18H32O16

Front

Define photosynthesis.

Back

The process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll absorbs light energy, primarily from the blue and red wavelengths, to convert it into chemical energy.

Front

What is a dehydration reaction?

Back

A chemical reaction that involves the loss of a water molecule from the reacting molecule.

Front

What is the difference between amylose and amylopectin?

Back

Amylose is unbranched, while amylopectin is branched.

Front

What is the significance of covalent bonds in organic molecules?

Back

Covalent bonds allow for the formation of stable molecules essential for life.