10/6/15 PHOTOSYNTHESIS PHOTOSYNTHESIS PHOTOSYNTHESIS. Where did this redwood tree and saguaro cactus come from?

Size: px

Start display at page:

Download "10/6/15 PHOTOSYNTHESIS PHOTOSYNTHESIS PHOTOSYNTHESIS. Where did this redwood tree and saguaro cactus come from?"

Ambrose May
5 years ago
Views:

PHOTOSYNTHESIS CONVERTING LIGHT ENERGY TO

this redwood tree and saguaro cactus come

up the cells that make up the plants come

1 PHOTOSYNTHESIS CONVERTING LIGHT ENERGY TO CHEMICAL ENERGY PHOTOSYNTHESIS Where did this redwood tree and saguaro cactus come from? Where did the molecules that make up the cells that make up the plants come from? PHOTOSYNTHESIS Plants use water + carbon dioxide to make sugar Plants use sugars as material for building cells and energy to run cells Humans use sugars for: Food Shelter Energy Clothing Medicines 1

PHOTOSYNTHESIS OVERVIEW Occurs in the leaves of green plants Occurs in specific cells in the middle layer of the leaf Occurs in organelles called chloroplasts within the cells of that layer Products

convert CO 2 to sugar Use the following resources: textbook; reading analysis; this power point; internet (esp.

2 PHOTOSYNTHESIS OVERVIEW Occurs in the leaves of green plants Occurs in specific cells in the middle layer of the leaf Occurs in organelles called chloroplasts within the cells of that layer Products and Reactants (6) CO 2 + (6) H 2 O + light energy (1) C 6 H 12 O 6 + (6) O 2 PHOTOSYNTHESIS OVERVIEW Light-dependent reactions convert light energy to chemical energy Light-independent reactions convert CO 2 to sugar Use the following resources: textbook; reading analysis; this power point; internet (esp. videos) Construct a concept map of the light dependent reactions A concept map makes connections between important terms and identifies those connections with verbs Use the following terms: Chlorophyll; light energy; water; H+ ions; electrons; oxygen; ADP; ATP; NADP+; NADPH; thylakoid space; thylakoid membrane; electron transport chain 2

3 Also called light reactions or photochemical reactions Water + Light ATP + NADPH + Oxygen Light energy is attracted by chlorophyll pigments Energy splits H 2 O into (2) H + + O + (2) e O 2 is released as waste Water + Light ATP + NADPH + Oxygen H+ collects in the thylakoid membrane Movement of H + helps to make ATP H + combines with NADP to make NADPH NADPH and ATP are used in dark reactions 3

Water + Light ATP + NADPH + Oxygen e (electrons) are used by electron transport chain Movement along chain moves more H + into thylakoid Used to combine NADP and H + into NADPH NADPH

v=bk_cjd6evcw&list=pl485bec8a3222f264 Use the following resources: textbook; reading analysis; this power point; internet (esp.

4 Water + Light ATP + NADPH + Oxygen e (electrons) are used by electron transport chain Movement along chain moves more H + into thylakoid Used to combine NADP and H + into NADPH NADPH and ATP are used in dark reactions Light Dependent Reactions Video v=bk_cjd6evcw&list=pl485bec8a3222f264 Use the following resources: textbook; reading analysis; this power point; internet (esp. videos) Construct a concept map of the light dependent reactions A concept map makes connections between important terms and identifies those connections with verbs Use the following terms: Carbon dioxide (1-carbon molecule); NADPH; NADP+; ADP; ATP; stroma; carbon fixation; reduction; regeneration; C5 sugar; C3 sugar; C3 sugar 4

5 (3) CO2 (3) C6 (3) C5 (6) C3 ATP ATP NADPH (5) C3 (6) C3 (1) C3 Also called dark reactions, Calvin cycle or photochemical reactions Three phase cycle that starts and finishes with a 5-carbon molecule ATP + NADPH + Carbon Dioxide Glucose Stage 1 Carbon Fixation 1-carbon (CO 2 ) added to a 5-carbon with help of enzyme rubisco 6-carbon molecule breaks into (2) 3- carbons 5

6 Stage 2 Reduction H + added from NADPH P added from ATP This energizes the 3 carbon ATP + NADPH + Carbon Dioxide Glucose ATP + NADPH + Carbon Dioxide Glucose Stage 3 Regeneration 3 carbon sugar is removed 5-carbon molecule is restored (using ATP) Cycle must complete (2) rotations to make (1) glucose molecule Light Independent Reactions Video 6

7 COMPARING LIGHT DEPENDENT AND Construct a Venn diagram comparing the two parts of photosynthesis Use the following terms: Light energy; chemical energy; ATPè ADP; ADPè ATP; ATP; NADPH; NADPè NADPH; NADPH è NADP; H+; e-; CO2; H2O; thylakoid; stroma; chlorophyll; C 6 H 12 O 6 ; electron transport chain; Calvin cycle 7

10/10/16 PHOTOSYNTHESIS PHOTOSYNTHESIS PHOTOSYNTHESIS. Where did this redwood tree and saguaro cactus come from?

10/10/16 PHOTOSYNTHESIS PHOTOSYNTHESIS PHOTOSYNTHESIS. Where did this redwood tree and saguaro cactus come from? PHOTOSYNTHESIS CONVERTING LIGHT ENERGY TO CHEMICAL ENERGY PHOTOSYNTHESIS Where did this redwood tree and saguaro cactus come from? Where did the molecules that make up the cells that make up the plants