Lesson 11 photosynthesis

Question 1

photosynthesis

Answer 1

a complex chemical process that converts light into chemical energy in the form of sugar

Question 2

photosynthesis eqn

Answer 2

6CO2 + 6H20 + (energy) → using light and chlorophyll C6H12O6 + 6O2+ 6water + energy

Question 3

light reactions

Answer 3

photochemical, is fast and light dependent, splits water and occurs in the thylakoid
This creates current
make NADPH

Question 4

dark reactions

Answer 4

biochemical and is slower, light independent fixes co2 to make sugar

Make NADP+

Question 5

primary photosynthetic pigment

Answer 5

chlorophyll a and b and reflect green, absorb blue and red

is nonpolar and hydrophobic

Question 6

accessory pigments

Answer 6

carotenes and xanthophyll reflect orange and yellow light

Question 7

paper chromatography

Answer 7

separates pigments based on adsorbtion

Question 8

spectroscope

Answer 8

instrument that separates white light into components

Question 9

fluorescence

Answer 9

when electrons are excited, they release energy by falling back to original orbital and emit a photon of RED LIGHT

Question 10

name the diagram

Answer 10

pg 144

Question 11

chloroplast

Answer 11

organelle that is site for photosynthesis

Question 12

light can be

Answer 12

transmitted: passes through object
reflected: bounces back
absorbed: material retains energy

Question 13

mesophyll types

Answer 13

columnar mesophyll is the palisade
Most light capture occurs in the palisade
Loosely patched mesophyll is called spongey mesophyll
They contain the stomata that function for gas exchange

Question 14

STRUCTURE OF chloroplast

Answer 14

outer membrane, stroma is thick fluid, thylakoids are disks, Grana are stacks of thylakoids

Question 15

light travels as

Answer 15

energy packets called photons

Question 16

fate of light

Answer 16

can be transmitted (passes through), can be reflected (bounces off) or absorbed (retains energy)

Question 17

watch a quick video on photosynthesis

Answer 17

light enters thylakoid, this takes H20 and makes water. then it makes NADPH and ATP which goes to the Calvin cycle where CO2 is fixed. then this makes glucose that can be metabolized into starch

Question 18

rf factor

Answer 18

distance moved by pigment over distance from pigment origin to solvent form

Question 19

phenol red turns

Answer 19

yellow in the presence of CO2. when you add a plant to a yellow beaker, it turns red as the CO2 is removed!

Question 20

iodine stains

Answer 20

starch

Question 21

the aluminum foil covering the plant experiment

Answer 21

proves that the photochemical reaction was linked to the biochemical reaction

Question 22

from the mutant plant (white in the middle)

Answer 22

it is proven that chlorophyll is needed for photosynthesis

Question 23

sodium bicarbonate adds

Answer 23

CO2 to platns

Question 24

small rF number

Answer 24

means more soluble pigment