Test Ch. 4

Identify Part A of the ATP molecule seen below.

• base
• Pentose sugar ( ribose)
• phosphate groups
• none of the above

Identify Part B of the ATP molecule seen below.

• base
• Pentose sugar ( ribose)
• phosphate groups
• none of the above

Identify Part C of the ATP molecule seen below.

• base
• Pentose sugar ( ribose)
• phosphate groups
• none of the above

1.The diagram shows the structure of adenosine diphosphate (ADP). What describes the conversion of ADP to ATP?

• a. an input of energy as both phosphate groups detach
• b. a release of energy as one phosphate group detaches
• c. a release of energy as a third phosphate group is attached
• d. an input of energy to attach a third phosphate group

2.Stuart is listing the changes to matter and energy that occur during the process of photosynthesis. Which of these examples should he include in his list?

• nuclear changes that convert hydrogen and oxygen into carbon
• chemical changes that convert carbohydrates into smaller molecules.
• changes that convert light energy into chemical energy stored in carbohydrates
• changes that convert chemical energy into heat and light

Chlorophyll is a pigment found in chloroplasts that

• reflects green light
• absorbs green light.
• stores light energy.
• makes up the stroma.

The structure in which photosynthesis takes place is the

• cytoplasm
• mitochondria
• chloroplast
• nucleus

Van Helmont’s experiment showed that plants get the carbon for their nutrition from

• soil
• air
• water

Organisms that make their own food, such as green plants and algae, are called

• autotrophs
• heterotrophs
• organic
• inorganic

Water vapor is lost through the plant’s ________________ and reabsorbed through the plant’s ________________.

• roots, stomata
• roots, roots
• stomata, stomata
• stomata, roots