Photosynthesis Review Chapter 8

Plants “look green” because they _____________ green wavelengths of light. absorb reflect reflect Photosynthesis in plants takes place inside which organelle? chloroplasts

A _________________ is a molecule (like chlorophyll or carotinoids) that absorbs energy from light Name the green pigment used by plants for photosynthesis pigment Chlorophyll

Blue-violet and red wavelengths Absorption of Light by Chlorophyll a and Chlorophyll b © Pearson Education, Inc. Publishing as Pearson Prentice-Hall. All rights reserved. Which wavelengths of light do chlorophyll a and chlorophyll b absorb best? Chlorophyll b Chlorophyll a Blue-violet and red wavelengths

Name the 2 energy and electron carriers From where to land plants get the carbon dioxide needed for photosynthesis? atmosphere Name the 2 energy and electron carriers produced during the light dependent reactions. NADPH & ATP

Which wavelength of light does Chlorophyll a and chlorophyll b Absorption of Light by Chlorophyll a and Chlorophyll b © Pearson Education, Inc. Publishing as Pearson Prentice-Hall. All rights reserved. Which wavelength of light does Chlorophyll a and chlorophyll b absorb the least? Chlorophyll b Chlorophyll a They do not absorb green light.

Use chemical symbols and numbers to write the chemical equation for photosynthesis ___________+___________ __________ + __________ C6H12O6 6 O2 6 CO2 6 H2O

This organism is a _____________. heterotroph This organism is a _____________. autotroph heterotroph Image from: http://www.entm.purdue.edu/wildlife/chipmunk_pictures.htm

#2 is called ________________. #1 Photosynthesis #2 Name the 2 sets of reactions that make up photosynthesis: #1 is called ___________________. Light-Dependent Reactions #2 is called ________________. Calvin Cycle (or Light-independent Reactions)

Label the reactants and products for the Light dependent reactions #1 #3 Photosynthesis #2 Label the reactants and products for the Light dependent reactions #1 = __________________ #2 = __________________ #3 = __________________ SUNLIGHT and WATER ATP and NADPH Oxygen

Label the reactants and products for the Calvin cycle Photosynthesis #1 Calvin CYCLE #2 #3 Label the reactants and products for the Calvin cycle #1 = __________________ #2 = __________________ #3 = __________________ ATP & NADPH carbon dioxide Sugars

Where does the Calvin cycle happen? The clusters of proteins in the thylakoid membrane that collect light are called ________________ Where does the Calvin cycle happen? PHOTOSYSTEMS In the stroma

The Calvin cycle requires light. TRUE or FALSE The Calvin cycle requires light. FALSE: It is light INDEPENDENT A protein that helps chemical reactions happen faster in living things is called an _______________ enzyme

This stack of membrane sacs is called a ________________ Which part of photosynthesis happens here? granum Light dependent reactions

Which part of photosynthesis happens here? This space around the grana is called the _____________ Which part of photosynthesis happens here? stroma Calvin cycle

An organism that can make its own food like a green plant is called an http://www.rnzih.org.nz/images/gardenimages/carrots_d.jpg Carotenoids ______________ are plant pigments that are orange or yellow instead of green An organism that can make its own food like a green plant is called an _______________ autotroph

Molecules that interact in a chemical reaction that are written on the left side of a chemical equation are called ________________ An organism that CAN’T make its own food and must get its energy from consuming other organisms reactants heterotroph

Reactions of photosynthesis that use light energy to produce ATP and NADPH Large protein that adds a P to ADP to make ATP Light-dependent reactions ATP synthase

An organism like a green plant that can make its own food Molecule made of ribose, adenine, and 3 phosphates used by living things to store and release energy AUTOTROPH ATP

Pigments that are yellow or orange not green Clusters of light collecting proteins found in the thylakoid membrane Space surrounding the thylakoids inside a chloroplast carotenoids photosystems stroma

Stack of thylakoid membranes Process by which plants use sunlight to convert water and carbon dioxide (CO2) into oxygen (O2) and glucose Stack of thylakoid membranes PHOTOSYNTHESIS GRANUM (pl. GRANA)

The change in shape of a protein at extremes of temperature or pH 6 carbon sugar molecule that is the main product of photosynthesis and is used as the fuel burned by cells denaturing glucose

Negatively charged particle found circling the nucleus of an atom Reactions of photosynthesis in which energy from ATP and NADPH is used to build high energy sugar molecules Negatively charged particle found circling the nucleus of an atom Calvin cycle electron

In which part of photosynthesis is oxygen produced? Cell organelle containing thylakoid stacks where photosynthesis happens In which part of photosynthesis is oxygen produced? chloroplast Light-dependent reactions

Another name for the Calvin cycle Molecules that are produced during a chemical reaction that are written on the right side of a chemical equation Another name for the Calvin cycle products Light independent reactions

Which gas that we need is given off during photosynthesis? Where do the carbon atoms come from that end up in glucose made by the Calvin cycle? Which gas that we need is given off during photosynthesis? Carbon dioxide oxygen

Where does the OXYGEN come from that ends up in glucose after the Calvin cycle? Where to does the ATP and NADPH produced during the light-dependent reactions go next? Carbon dioxide They are used by the Calvin cycle to make sugar

This organism is a(n) _____________. autotroph heterotroph Heterotroph Fungi get their energy by absorbing nutrients from dead organisms.

Name 2 factors that can affect the rate of photosynthesis. What do you think would happen to the rate of photosynthesis on a cloudy day? Temperature, availability of water, and light intensity It would be slower than on a sunny day

How many phosphate groups are in a molecule of ADP? Write the equation for changing ADP into ATP. 2 ADP + P + energy → ATP

What compounds are formed from carbon dioxide during the Calvin cycle? Which part of photosynthesis can continue at night? sugars (glucose) Calvin cycle

This organism is a(n) _____________. autotroph heterotroph autotroph

Comes from H2O when water is split Tell which molecule the H in NADPH originally comes from. NADPH Comes from H2O when water is split

Animal cells store their glucose as _______________ glycogen http://academic.brooklyn.cuny.edu/biology/bio4fv/page/glycogen.jpg Animal cells store their glucose as _______________ Starch Glycogen glycogen Image from: BIOLOGY by Miller and Levine; Prentice Hall Publishing©2006 This reaction shows how cells _______________ energy STORE RELEASE RELEASE

Label the parts of this chloroplast A (individual membrane sac) = _________________ B (space inside the sac) = _____________________ C (stack) = __________________ D (space surrounding the sacs) = ________________ E (space outside the chloroplast) = ________________ thylakoid Thylakoid space Granum (pl. grana) stroma cytoplasm Image from: BIOLOGY by Miller and Levine; Prentice Hall Publishing©2006

Plant cells store their glucose as _______________ starch Starch Glycogen starch http://bioweb.wku.edu/courses/Biol115/Wyatt/default.htm Image from: BIOLOGY by Miller and Levine; Prentice Hall Publishing©2006 This reaction shows how cells _______________ energy STORE RELEASE STORE

Label the parts of this molecule A = ______________________ Name this molecule used to store and transport energy ATP-adenosine triphosphate Label the parts of this molecule A = ______________________ B = ______________________ C = ______________________ adenine Ribose sugar Phosphate groups Image from: BIOLOGY by Miller and Levine; Prentice Hall Publishing©2006

Tell which molecule each of the atoms that end up in glucose originally came from: _______ ________ _________ CO2 CO2 H2O

What are the reactants in the LIGHT REACTIONS? Which TWO high energy carriers are produced in the LIGHT REACTIONS? WATER ATP & NADPH

What are the reactants in the LIGHT INDEPENDENT REACTIONS? What are the products of the LIGHT REACTIONS? ATP & NADPH & CO2 ATP & NADPH & O2

What are the products in the LIGHT INDEPENDENT REACTIONS? How many phosphates are attached to an ATP molecule? glucose 3

This T-shirt looks blue because it is __________ blue light. reflecting absorbing reflecting http://www.hiphopwest.com/images/protroyalblue.jpg