Bio 141 Notes (3/13/14)

Question 1

Light Reactions

Answer 1

plants do not absorb green

generate energy to pass to the Calvin cycle

Question 2

Calvin Cycle

Answer 2

carbon fixation

Question 3

Light captures via ?

Answer 3

photosystem

Question 4

What is important to photosynthesis

Answer 4

membranes

Question 5

Photosystems are made of…

Answer 5

Proteins and Pigments

Question 6

excited eletrons pass through an ____________ that sets up a proton gradient

Answer 6

electron support chain

Question 7

An electron is excited again in Photosystem __ and then used to make _______

Answer 7

1

NADPH

Question 8

What picks up the electron

Answer 8

NADP+

Question 9

what is the result of picking up electrons

Answer 9

NADPH

Question 10

Photosystems II

Answer 10

P680

water coming in and splitting

Question 11

Photosystem I

Answer 11

P700
start with electrons
ends with electrons being picked up by NADP+

Question 12

Non-Cyclic Electron Transport

Answer 12

savings- water

H2O - O2

Question 13

Cyclic Electron Transport

Answer 13

can back ATP
allows continuous generation of ATP
goes back to electron transport chain

Question 14

Calvin cycle requires ___ more ATP than ____

Answer 14

1.5x

NADPH

Question 15

Calvin Cycle

Answer 15

once called ‘Dark reactions’
light independent
takes place in stroma (open chloroplast interior)
using energy from light reactions - incorporate carbon from CO2 into sugar
energy transferred to carbon-containing molecules
- phosphorylation by ATP and reduction by NADPH
every ‘turn’, two 3-C molecules exit and sic 1-C molecules enter

Question 16

Carbon Fixation

Answer 16

take carbon from the air and put it into a biologically useful form

Question 17

Rearrangement 1

Answer 17

6* 5-C + 6* 1-C -> 12* 3-C

Question 18

Rearrangement 2

Answer 18

103-C -> 65-C

Question 19

Rearrangements involve going to/ from…

Answer 19

5-C ribulose molecules

Question 20

Reasons for cell division

Answer 20

reproduction, growth, and regeneration

Question 21

Sexual Production

Answer 21

2 Parents

Question 22

Asexual Production

Answer 22

1 Parent
individual, single celled organisms
plants, bacteria
ex. aphids, occasionally lizards

Question 23

Sexual Life Cycles

Answer 23

sexual reproduction involves halving and doubling the chromosome number

Question 24

Diploid

Answer 24

2n

2 copies of genetic information

Question 25

Meiosis

Answer 25

Halving

Question 26

Chromosome number indicated by…

Answer 26

(n)

Question 27

Haploid

Answer 27

one copy of each chromosome

Question 28

How many diploids/haploids do humans have?

Answer 28

Diploids 2n - 46

Haploids n - 23