___________________ help to lower the activation energy.
catalysts (biological enzymes;) reactions in the body occur too slowly without catalysts the activation energy is too high without catalysts
What is potential and kinetic energy?
Potential- energy of position
Kinetic- energy of motion
What is the top portion of a leaf called?
Cuticle
What are photons
Tiny pockets of light energy
The first stage of cellular respiration is called ______________________. It does/does not require oxygen.
Glycolysis/ does NOT
What is the name on the enzyme where the substrate fits?
Active Site
Energy is neither created nor destroyed is the statement of what theory?
1st Law of Thermodynamics
Where do you find photosynthetic pigments?
Thylakloids
What is produced in the light dependent reactions?
ATP, NADPH and oxygen
What stage of ATP produces the MOST ATP, which creates the least?
Electron transport chain, kreb's cycle
The location on the substrate where the enzyme binds is called the ____________.
binding site
What does the second law of thermodynamics state?
Entropy is always increasing; disorder and randomness is increasing
What is the semi liquid substances inside chloroplasts?
Stroma
When does photorespiration occur?
When CO2 levles fall
In order, what are the steps of cellular respiration?
glycolysis, formation of acetyl co a, kreb cycle and electron transport chain.
What is entropy?
Disorder in the universe
Any energy that is not converted to useful energy is converted to ____________.
Heat
What is the opening in leaves that allow things in and out? What controls when they open and close?
stomata, guard cells
During the process of photosynthesis, solar energy is converted into
chemical energy
What are the products of ethanol fermentation?
alcohol and carbon dioxide
What is activation energy?
The energy required for a chemical reaction to occur.
What is the difference in endergonic and exergonic reactions?
Endergonic- Require an input of energy,Bonds are broken; take in energy
Exergonic - release energy, bonds are made
What part of leaf contain chloroplasts?
mesophyll
What are the reactants and products in photosynthesis

How much ATP is made in fermentation? Is it more efficient or less efficient than cellular respiration?
2, less