Energy Transformations

Question 1

What does autotrophs and heterotrophs mean?

Answer 1

Auto: Capable of making their own food
Hetero: Not being able to make their own food

Question 2

What are the ingredients needed for plants to make food?

Answer 2

•sunlight
•water
•CO2

Question 3

What are the stages of food-making?

Answer 3

1. Light reaction stage
2. Dark reaction stage/Calvin cycle

Question 4

What are the two stages of food making?

Answer 4

1. Light reaction stage
2. Dark reaction stage/Calvin cycle

Question 5

Light dependent reactions: what are its definition, goal and where does it takes place?

Answer 5

Def: Use of energy to make molecules needed for next stage.

Goal: Produce ATP and NADPH.

Takes place: thylakoid

Question 6

Parts inside of the chloroplast:

Answer 6

Outer membrane, inner membrane, stroma, thylakoid ( plural: grana, one composition: granum)

Question 7

If no photosynthesis.…

Answer 7

No food, no life, and only light independent bacteria exist (chemosynthetic)

Question 8

In the PS2, chloroplast pigments absorbs sunlight then reaches the electron reaction center.

Answer 8

1st step

Question 9

What is step 2 of atp process?

Answer 9

Charged electrons would be excited to go out to electron acceptors

Question 10

In step 3, Excited electrons leaves the PS2 oxidized then enter the electron transport chain. What is next??

Answer 10

As the ps2 lacks electrons, it takes energy electrons by splitting H2O into:

2 Hydrogen ions
1 Oxygen atom
2 Electrons

Question 11

Enumerate in order the electron acceptors in ATP process:

Answer 11

Pq - Plastoquinone

Cc - Cytochrome complex

Pc - Platocyanin

Question 12

As electrons move, they create energy that pumps in hydrogen ions from stoma to thylakoid which makes it concentrated.

Answer 12

4th step

Question 13

Last part of atp making process:

Answer 13

Hydrogen ions soon fled through ATP synthase. Phosphate is added to ADP to make ATP

Question 14

What is produced in ATP process?

Answer 14

Oxygen

Question 15

Another names for PSII and PSI

Answer 15

PSII - P680
PSI - P700

Question 16

In NADPH making process what is step 1?

Answer 16

Electrons in PS1 again absorbs light enegry, then reaches the reaction center.

Question 17

Electrons gets excited then goes to fd, electron acceptor/transporter. What step is this on NADPH process, define fd

Answer 17

Step 2, ferredoxin (fd)

Question 18

On step 3 on the NADPH process, what picks up the electrons?

Answer 18

NADP+

Question 19

What is the last part of the NADPH process?

Answer 19

It then synthesize the NADP+ in the stoma with NADP+ reductase to make NADPH.

NADP+ Reductase( NADP+ +2e + H+)= NADPH