Module 3

About what percent of the light striking the Earth from the Sun is actually captured by living things used to power photosynthesis?

1%

Which of following molecules is used by all cells as the universal energy molecule?

ATP

The light reactions of photosynthesis produce

ATP and NADPH

Which of the following molecules is a product of cellular respiration?

CO2

Prepare a convincing case that photosynthesis and cellular respiration make for a great partnership in sustaining life on Earth. How are these processes interconnected?

Cellular Respiration and Photosynthesis have a symbiotic relationship because without eachother neither would be possible. In order for Cellular Respiration to take place, Oxygen would need to be present which is produced through Photosynthesis and released from plants. Without oxygen, life that releases CO2 would not be living and Photosynthesis would not occur because plants,bacteria and protists that perform photosynthesis need CO2. Therefor they are in a symbiotic relation that powers the cycle of life on Earth.

In plants, Photosystem II is known as the "NADPH-producing Photosystem"

False

Plants perform photosynthesis but not cellular respiration.

False

T/F The Light Dependent Reaction of photosynthesis occurs just outside the chloroplast.

False

T/F CAM photosynthesis is a special process that evolved in those plants that live in cooler, more low light conditions.

False

Cellular respiration of one molecule of glucose ultimately yields 136 molecules of ATP

False (yields 36-38 but mainly 38)

Which of the following foods can be oxidized by aerobic respiration?

Glucose, fats and proteins

Which of the following pathways are used during fermentation?

Glycolysis only

Which color of light is least used as an energy source to power photosynthesis?

Green

What activates ATP synthase to produce ATP?

H+ ions flowing across the mitochondrial inner membrane

Which stage of cellular respiration produces the most electron carrier molecules?

Krebs Cycle

Which of the following organisms can perform photosynthesis?

Some kinds of bacteria, algae and plants

What happens to glucose's carbon atoms during the overall process of aerobic respiration?

They are released as CO2.

How does the carbon dioxide that is needed in photosynthesis get inside the plant?

Through the stomatal pores on the leaf

What name is given to the membranous sacs found within a chloroplast?

Thylakoids

NADPH is one kind of molecule known as an 'electron carrier molecule'.

True

The first step in photosynthesis, call the Light Dependent Reaction, involves the

Use of sunlight to break up water molecules

The process known as alcohol fermentation is utilized by ______ to survive an anaerobic environment.

Yeast

Of the following list of plant structures, which is the smallest?

chlorophyll

Which of the following is the most abundant pigments used to absorb light in plants?

chlorophyll a

Which of the following is the correct order of the three stages of aerobic respiration?

glycolysis, krebs cycle, electron transport chain

The carbon reactions take place

in the stroma

Where is the mitochondrial matrix?

inside the inner membrane

Which of the following is an adaptation to increase the surface area of a part of a cell that is involved in cellular respiration?

the cristae of mitochondria