AP Bio Ch 7 Photosynthesis

Photosynthesis

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Multiple Choice

Plants "breath" in

• Water

• Carbon Dioxide

• Oxygen

• Glycose

Open Ended

What are some careers or college majors related to plants?

Multiple Choice

Plants take in______ and release _______ that helps start cellular respiration

• CO2 and Oxygen

• Oxygen and CO2

• sugar and glucose

• NAD+ and NADH

Structures of a Leaf

• Xylem and Phloem make up vessels in the plants transport water and food

• Openings in the leaf allow for the exchange of gasses.  Guard cells open and close these openings.

The Structure of Chloroplasts

• Granum- stacks of thylakoids

• DNA-plant genetic material

• Stroma- the fluid within the chlorplast

• Thylakoid- membrane bound structures where light dependent rxn of photosynthesis occurs

• Lumen- fluid part of thylakoid where protons are pumped during Light Dependent rxn

Multiple Choice

Which of the following best describes the function of the stroma

• protective top layer

• opens and closes the stomata

• allows for gas exchange

• a colorless fluid in the cholorpast

Multiple Choice

Tiny pores on the underside of leaves

• Stroma

• Stomata

• Thylakoids

• Chloroplasts

Action Spectrum - measures the rate of photosynthesis at different wavelengths of light; measured by the rate oxygen is produced

Multiple Choice

What measures the amount of light that passes through a sample of green leaves?

• ^{spectrophotometer}

• thermometer

• prisms

• light refractor

Multiple Choice

How does an action spectrum measure the rate of photosynthesis?

• rate of oxygen produced

• rate of carbon dioxide produced

• rate of ATP produced

Make sure you study for your quiz

"Some people want it to happen, some wish it would happens, others make it happen."

Michael Jordan​

Multiple Choice

Rate of photosynthesis ________ as light intensity _________

• increases, increases

• decreases, increases

• increases, decreases

Extra notes from AP central

3.5 daily video 1 and 2

Light dependent rxn to use light pigments, in the thylakoids, to change light energy to chemical energy which is stored in NADPH. The light is also used to make, synthesize, ATP.

​Oxygen is also produced at then same time

Then NADPH and ATP are then used to start the Calvin cycle.

Summary: *Cholorphlly is able to capture energy from the sun and change it into high energy electrons. ​which in turn are used to reduce NADP+ and ADP to start the Calvin cycle.

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Extra notes from AP central

Photosystems I and II are located in the membrane of the chloroplast although PS II occurs first, they are names based on the order in which they were discovered. Their job is to capture light and hydrolysis water.... Yes I know. But what occurs did hydrolysis!

The O are released into the atmosphere for ______ to breath in. The H+ are then enter into an ETC where they convert into energy by ATP synthase. Now this energy can used to reduce NADP+ and ADP.

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Multiple Choice

The oxygen that is released after the fort step of photosynthesis is used to start

• the Kreb cycle

• Glycolysis

• The Calvin cycle

• the ETC

Multiple Choice

The Calvin Cycle occurs in the

• Thylakoid

• Grana

• Inner membrane of chloroplast

• Stroma

• Are you still confused?    This is pretty hard to visualize, but through the magic of technology, we can watch these processes as animations

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• http://highered.mcgraw-hill.com/sites/0072437316/student_view0/chapter10/animations.html#

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• http://dendro.cnre.vt.edu/forestbiology/photosynthesis.swf

​Calvin Cycle

Use ATP, NADPH, and CO2 to produce carbohydrates.

**It's ultimate goal is to make organic produces that plants need using the products from the light dependent rxn of photosynthesis. ​

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