Cell Energy Study Guide

Autotrophs get energy from
the sun
Heterotrophs get energy from
eating food
What does ATP do for the cell
It’s an energy storing molecule
Does ADP have stored chemical energy usable for the cell
Yes
What is the difference between ATP and ADP
ATP has usable energy for and ADP doesn’t
What organelle performs photosynthesis
Chloroplast
What process converts light energy into chemical energy
Photosynthesis
What are the 3 stages of Photosynthesis
1. Absorption of light= Primary pigment chlorophyll
2. Conversion of light energy to chemical energy
3. Storage of energy and organic molecules= Calvin Cycle
Which stages would be considered a light reaction
Light reactants
Which stages would be considered a dark reaction
Calvin Cycle
What pigment absorbs light on the thylakoid membrane
Chlorophyll
What does photosynthesis release into the air
Oxygen
What are the reactants of photosynthesis
6CO2+6H2O
What organelle performs cellular respiration
Mitochondria
What process releases the chemical energy stored in food
Cellular respiration and photosynthesis
What are the 2 stages of cellular respiration
1. Breakdown of organic molecules= Stage name: Oxygen
2. Production of carbon dioxide= Calvin Cycle
What does cellular respiration release into the air
Carbon Dioxide
What are the reactants of cellular respiration
6CO2+6H2O+Energy
What are the products of photosynthesis
6O2+C6H12O6
Is the mitochondria used for aerobic respiration
Yes
Is the mitochondria used for anaerobic respiration
No
How are photosynthesis and Cellular Respiration related
By some molecules at use but they are switched
what organelle is used in cellular respiration if oxygen is present
Mitochondria
What is it called when respiration as oxygen
Aerobic
What happens if oxygen is not present
Fermentation
When would a cell produce the most ATP, with or without oxygen
With Oxygen
Why do plants have mitochondria
Because it turns glucose into energy
What is anabolic
one that involves creating large molecules out of smaller molecules
Why are more chloroplast found in leaves of plants
Because the surface area is bigger
Why does change color in the fall
lack or chlorophyll
Which steps in respiration are anaerobic
Glycolysis and Fermentation
Where does oxygen used in respiration end up
ends up in water
Define photosystem and pigment
Main Pigment: Chlorophyll, Pigment: Colored substances that absorbs or reflects light, and Photosystem: Cluster of pigments
What bonds are broken to release energy during photosynthesis
Phosphate
Energy is trapped in the cell in 2 ways
ATP and NADPH
What is the total break down of ATP in each step in respiration
Glycolysis: 2, Krebs Cycle: 2, Electron Transport chain: 32
What is the difference between alcoholic fermentation and Lactic Acid Fermentation
Alcoholic: takes place in yeast and bacteria
Lactic Acid: Builds up in muscles
What is the most important energy storing compound
ATP