Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Biology Chapter 6

Chapter 6 Summarize

Photosynthesis occurs within the chloroplasts of plants and some _________and involves two sets of chemical reactions. Protists
The light reactions of photosynthesis capture solar energy to produce the ATP and NADPH needed to ____________ ___________. Synthesize carbohydrates
The Calvin cycle uses the ________ of the light reactions to reduce CO2 and produce carbohydrates. Outputs
Variations in the photosynthetic pathway have allowed producers to adapt to a ______________ of __________________. Variety/environments
Cyanobacteria, algae, and plants carry on photosynthesis, a process in which water is oxidized and carbon dioxide is reduced using _______ ___________. Solar energy
The combination of a reduction and an oxidation reaction is called a ____________ _________________. Redox reaction
The end products of photosynthesis include ____________ and ______________. Solar energy + CO2 + H2O ----->(CH2O) + O2 Carbohydrate/oxygen
In plants, photosynthesis ________ ____________ in the Chloroplasts of mesophyll cells. Takes place
A chloroplast is bound by a __________ membrane. Double
A chloroplast contains________ main components: the liquid stroma and the membranous grana made up of thylakoids. Two
_________________ transforms solar energy into the chemical energy of a carbohydrate. Photosynthesis
____________ cells conduct photosynthesis. Mesophyll
_______________ is the organelles that carry out photosynthesis. Chloroplasts
In a chloroplast. a double membrane surrounds a fluid-filled area called the __________. Stroma
A separate membrane system within the stroma forms flattened sacs called __________________. Thylkoids
Thylakoids in some places are stacked to form ______(granum). Grana
____________ and other pigments reside within the membranes of the thylkoids. Chlorophyll
During photosynthesis, the ____________ _______________ take place using chlorophyll molecules in the thylakoid membrane. Light reactions
Calvin cycle ______________ take place in the stroma. Reactions
_________ occurs when a mole and the molecule gains electrons (e-) and hydrogen ions (H+) and the molecule is said to be reduced. Reduction
______ occurs when a molecule give up (e-) and hydrogen ions and the molecule is said to be oxidized. Oxidation
The light reactions use _______ __________ in the visible-light range. Solar energy
________________ is yellow or orange pigment that serves as an accessory to chlorophyll in photosynthesis. Carotenoid
______________ are named for the order in which they were discovered, not for the order in which they participate in the photosynthetic process. Photosystems
__________ and ____________ are the two photosystems. PS II/PS I
The collected solar energy results in ___________- __________ electrons at the reaction centers of the photosystems. High-energy
Solar energy enters _______, and energized electrons are picked up by an electron acceptor. PS II
The ___________ (splitting) of water replaces these electrons in the reaction center. Oxidation
_________________ (O2) is released to the atmosphere, and hydrogen ions (H+) remain in the thylakoid space. Oxygen
As electrons pass from one acceptor to another in an ____________ ___________ ________________, the release of energy allows the carriers to pump H+ into the thylakoid space. Electron transport chain
The buildup of ___________ establishes an electrochemical gradient. H+
When solar energy is ________ by PS I, energized electrons leave and are ultimately received by NADP+ (a coenzyme), which also combines with H+ from the stroma to become NADPH. Absorbed
Enzymes often have nonprotein helpers called _________. Coenzyme
_____________ from PS II replace those lost by PS I. complexes. Electrons
When H+ flows down to its concentration gradient through the channel present in ______ ___________. ATP synthase
ATP is _____________ from ADP and P by ATP synthase. Synthesized
___________ ______________ is a portion of photosynthesis that takes place in the stroma of chloroplasts and can occur in the dark. Calvin cycle
The Calvin cycle uses the products of the light reactions to reduce CO2 to a _________________. Carbohydrate
_______ ___________ (rubisco) is enzyme required for carbon dioxide fixation (atmospheric CO2 attaches to RuBP) in the Calvin Cycle RuBP carboxylase
_________ ____________ is the enzyme RUBP carboxylase fixes CO2 to RuBP, producing a 6-carbon molecule that immediately breaks down to a two C3 molecules. CO2 fixation
_____ ___________ is CO2 (incorporated into an organic molecule) is reduced to carbohydrate (CH2O). CO2 reduction
The CO2 reduction requires the ________and some of the ATP from the light reactions. NADPH
_____________ of ________ is for every three turns of the Calvin cycle, the net gain is one G3P molecule. Regeneration of RuBP
The other _____ G3P molecules are used to re-form three molecules of RuBP. This step also requires the energy of ATP. Five
It takes two G3P molecules to make _____ glucose molecule. One
_____ is then converted to all the organic molecules a plant needs. G3P
Where temperature and rainfall tend to be moderate, plants carry on ______ _____________ and are therefore called C3 plants. C3 photosynthesis
__________ _____________ plants have evolved an adaption that allows them to be successful in hot, dry conditions. C4 photosynthesis
Another type of photosynthesis is called __________ _____________, which stands for crassulacean-acid metabolism. CAM photosynthesis
__________________, a family of flowering succulent (water containing) plants that live in warm, arid regions. Crassulaceae
Photosynthesis produces the carbohydrates that the majority of living organisms on Earth use as a ___________ of ___________. Source/energy
Created by: jwatts1
Popular Biology sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards