college biology test 7+8

Which electron pathway requires water to be split?

Noncyclic

Which pigment traveled the farthest in the Chromatography lab? Next farthest? Next? Least furthest?

Carotene, Xanthophyll, Chlorophyll A, Chlorophyll B

An organism that performs photosynthesis is called an _______, organisms that rely on autotrophs to produce food as energy is a _______.

Autotroph, heterotroph

Which has more energy, infrared or visible light? Ultraviolet or visible light?

visible light, ultraviolet

What type of molecule traps light?

pigments

What are two things produced during photosynthesis equation?

oxygen and glucose

Which product of photosynthesis is produced during the light dependent reaction?

oxygen

Which product of photosynthesis is produced during the light independent reaction?

glucose

Where are pigments located?

thylakoid membrane

What must happen for the light reaction to make both ATP and NADPH?

photolysis- splitting of water

How many carbons are in RuBP? PGA? PGAL?

5, 3, 3

What is folded up inside the stroma and looks like flattened sacs connected by channels?

thylakoid membrane

Do plants take part in photosynthesis, cellular respiration, or both?

both

What is a gap or opening in the lower epidermis allowing oxygen and CO2 transfer?

stoma or stomata

In the Calvin Cycle, why is the pathway called the C3 pathway?

because the first intermediate has three carbons

What pigments match up with photo systems one and two?

PS1-P700 and PS2-P680

NADP+ picks up electrons and H+ to form __________ for use in the ________

NADPH, Calvin Cycle

Other names for light independent RXN?

Calvin Cycle, dark reaction

Which pigments reflects red, orange and yellow light?

Carotenoids

What do cartenoids absorb?

blue

What does chlorophyll absorb? Reflect?

blue-violet and blue-green, green

What are the 3 accessory pigments?

Xanthophyll, Anthocyanin, and Phybilin

How does gas diffuse in or out of plant?

stomata

Where do light independent reactions take place?

stroma

What is an example of a C4 plant?

corn, grass

What fuels H+ getting pumped into the interior of the thylakoid?

energy released from the e- as it gets passed from one protein in the ETC to the next

What is the name of the light independent reaction that uses oxygen instead of carbon dioxide? What plants do this?

photorespiration, C3

Which electron pathway of the light dependent reaction creates NADPH?

Noncyclic

How many PGAL are created before two of them go towards the creation of glucose?

12

Gamma Rays have the shortest wavelength, which light waves have the longest wavelength?

Radiowaves

Which product of photosynthesis is released when water is spilt in the light dependent reaction?

oxygen

What is the semi-fluid matrix called within a chloroplast?

stroma

What is the overall product of the Calvin Cycle? The byproducts?

glucose, ADP, and NADP+

What do we call the reaction centers in pigments that are surrounded by hundreds of light harvesting complexes?

photosystems

H+ cannot diffuse across a membrane, they need a channel, in the light dependent reactions what is the channel called that H+ uses to get across a cell membrane?

ATP synthase

How many rounds does the Calvin Cycle go through to create one glucose?

6

In the cyclic pathway, what donates electrons to the primary electron acceptor?

P700

Which electromagnetic spectrum wave has the shortest wavelength?

Gamma Rays

What is the primary pigment for photosynthesis?

chlorophyll a

What is the term used to describe the splitting of water?

photolysis

Which type of plant like a hot, dry environment?

CAM plants

At the end of the light dependent reaction, what are the products and byproducts, and where do they go?

oxygen is released via the stomata, NADPH and ATP are sent to be used in the Calvin Cycle

What is the name of the enzyme the starts the Calvin Cycle?

rubisco

What is an example of a CAM plant?

cactus

What are the proteins that move electrons and hydrogens across the thylakoid membrane called?

ETC

How many times do C3 plants fix? C4?

1, 2

Which visible light has the lowest energy?

red

packet of light energy

photon

Do long wavelengths have higher or lower energy?

lower

What are the cells the surround the stomata?

guard cells

Where does chemiosmosis take place?

thylakoid membrane

What is the difference between PGA and PGAL?

PGAL is PGA but with a phosphate

What is the enzyme that facilitates RuBP to accept CO2?

rubisco

What is another name for PGAL?

G3P

How many PGAL are used to make a glucose?

2

Where in the cell does the light dependent reaction take place?

thylakoid membrane

Which electron pathway is more evolved and more efficient?

noncyclic

The first thing that happens in photosynthesis is an e- is excited by a photon of light, if the e- is not replaced it will fall back down to lower energy level. Where does the e- come from that replaces it?

splitting of water

What is the name of the process by which ADP is phosphorylated making an ATP?

chemiosmosis