Summer School Biology - CH 4 - Section II Quiz

Disk-shaped structures containing photosynthetic pigments are called ____________.

• Krebs cycles

• carbohydrates

• thylakoids

• autotrophs

What two energy-storing molecules are produced by the light-dependent reactions of photosynthesis?

• NADPH and ATP

• pyruvate and acetyl-COA

• CO2 and O2

• lactic acid and ATP

What type of organisms supply almost all of the energy in the biosphere?

• heterotrophs

• eukaryotes

• photosynthesizers

• predators

The process by which autotrophs convert sunlight into usable energy is ______________.

• anaerobic respiration

• the Krebs cycle

• photosynthesis

• oxidation

Photosynthesis consists of two stages of reactions: the light-dependent reactions and _____________.

• Photosystems I and II

• the Krebs cycle

• the Calvin cycle

• electron transport

Plants store the glucose they don't need for immediate use in the form of __________.

• celluloid

• cellulose

• carbon

• starches

A molecule that can absorb certain light wavelengths and reflect others is called a _______________.

• thylakoid

• photosystem

• pigment

• compound

The stroma is a gel-like material that surrounds ____________.

• mitochondria

• thylakoids

• chloroplasts

• cell membranes

What is the most common photosynthetic pigment in plants?

• chlorophyll

• stroma

• citric acid

• RuBP

Which is not a product of the Calvin cycle?

• ATP

• NADPH

• PGAL

• carbon dioxide