Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

Photosynthesis: Understanding Light Energy Conversion into Organic Molecules, Quizzes of Biology

Definitions and explanations for various terms related to photosynthesis, the process by which plants convert sunlight into organic molecules using water and carbon dioxide. Topics covered include the role of chloroplasts, the structure of thylakoids and grana, the light-dependent and light-independent reactions of the calvin cycle, and the absorption of photons by pigments. Students will gain a deeper understanding of the complex biochemical process of photosynthesis.

Typology: Quizzes

2010/2011

Uploaded on 07/30/2011

warren-lin7
warren-lin7 🇺🇸

6 documents

1 / 8

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
TERM 1
What are photoautotrophs? what does it
mean?
DEFINITION 1
Plants.Means that they use the energy of sunlight to make
organic molecules from water and co2
TERM 2
How many pounds of carbs dose
photosynthesis create each year?
DEFINITION 2
350 trillion pounds
TERM 3
What percent of the sun's energy that
reaches earth is converted into chemical
energy?
DEFINITION 3
5%
TERM 4
Why is so little of the sun's energy utilized?
DEFINITION 4
Not all wavelengths are absorbedEnergy is lost during
conversion of light energy to chemical and during carbon
fixation reactions
TERM 5
Chloroplasts are highly structured _____ -rich
organelles
DEFINITION 5
Membrane
pf3
pf4
pf5
pf8

Partial preview of the text

Download Photosynthesis: Understanding Light Energy Conversion into Organic Molecules and more Quizzes Biology in PDF only on Docsity!

What are photoautotrophs? what does it

mean?

Plants.Means that they use the energy of sunlight to make

organic molecules from water and co

TERM 2

How many pounds of carbs dose

photosynthesis create each year?

DEFINITION 2

350 trillion pounds

TERM 3

What percent of the sun's energy that

reaches earth is converted into chemical

energy?

DEFINITION 3

TERM 4

Why is so little of the sun's energy utilized?

DEFINITION 4

Not all wavelengths are absorbedEnergy is lost during

conversion of light energy to chemical and during carbon

fixation reactions

TERM 5

Chloroplasts are highly structured _____ -rich

organelles

DEFINITION 5

Membrane

Thylakoids

Internal vesicle-like structures: these are embedded with

photosynthetic pigment, such as chlorophyl

TERM 7

grana

DEFINITION 7

columns or stacks of thylakoids

TERM 8

stroma

DEFINITION 8

sem-liquid surrounding thylakoids

TERM 9

Photosynthesis consists of two sets of

reactions. Name these 2 and explain them

DEFINITION 9

Light-dependent reactions produce O2 from H20Light

Independant reactions of the Calvin Cycle produce sugar

from CO

TERM 10

Calvin Cycle produces...

DEFINITION 10

Produces and stores chemical energy. Produces sugar form

C

Light behavs at though it consists of discrete

particles called

photons

TERM 17

Photon

DEFINITION 17

Discrete amount of light energy

TERM 18

When a molecule absorbs a photon, one of its

electrons is...

DEFINITION 18

elevated to a higher orbital

TERM 19

when an electron is elevated to a higher

orbital what happens to its Potential energy?

DEFINITION 19

It increases

TERM 20

When are photons absorbed?

DEFINITION 20

When the energy of the photon = difference b/t ground state

and the excited state of the electronSparknotes: if the energy

of the photon = the energy required to push the electron up

to the next level then it works

What is the difference b/t blue and red

photons?

blue photons = more energy. can excite electrons more.

TERM 22

Excited state of chlorophyll is stable or

unstable?

DEFINITION 22

Unstable.

TERM 23

Pigment

DEFINITION 23

substances that absorb visible light.

TERM 24

What happens to wavelenghs that are not

absorbed?

DEFINITION 24

They are reflected or transmitted

TERM 25

why do leaves appear green?

DEFINITION 25

becuase chlorophyll reflects and transmits green light

Steps and explain Photosytem 1+

GO THROUGH TI YOURSELF IN CHAPTER 10 IF U DONT KNOW

TERM 32

what happens when electrons go through the

second ETC?

DEFINITION 32

They go through the second ETC to ferredoxin and NADP+

reductase to made NADPH

TERM 33

How is ATP made in mitochondria?

DEFINITION 33

ATP made utilizing NADH

TERM 34

what happens in the calving cycle?

DEFINITION 34

CO2 is incorporated into organic moleculse that are already

in chloroplast

TERM 35

What is Carbno Fixation?

DEFINITION 35

when C02 is incorporated into organic molecules that are

already in the chloroplastin carbon fixation, fixed carbon is

reduce to CH2O by the addition of H+ and e- via NADPH

Carbon enters the cycle as CO2 and leaves as

a sugar named

glyceraldehyde - 3 - phosphate (G3P)

TERM 37

For net synthesis of one G3P the calvin cycle

has to occur ___ times

DEFINITION 37

TERM 38

Define and explain Carbon Fixation

DEFINITION 38

Fuck this shit