Enzymes/ATP
Pick someone to come up to the board and draw an label accurately:
1. Enzyme
2. Substrate
3. Active Site
Mrs. Rubalcaba will determine right answer
What is the whole point of cellular respiration?
To make ATP
Where does fermentation take place?
cytoplasm
Where in the cell does photosynthesis take place?
chloroplast
Fill in the blanks:
Exergonic – _________ energy
Endergonic – _________ energy
Exergonic – release energy
Endergonic – use energy
Enzymes speed up chemical reactions... therefore they are called what?
Catalysts
Explain to me how Glycolysis makes 4 ATP but we only say it makes 2 ATP.
2 ATP are used to split glucose in half to make 2 pyruvic acid molecules
How much energy does fermentation make?
0 ATP
What are the reactant(s) of the light dependent reaction?
light and water
What element makes up glucose and pyruvic acid?
carbon
In a one word answer, what do organisms use to make/convert into ATP?
Food
Pyruvic acid is made from what monosaccharide?
glucose
What is the one consistent (same) product made in lactic acid and alcoholic fermentation?
NAD+
Where does the H come from in NADPH?
Hydrogen from water splitting
What two things do animals give to plants and what two things do plants give to animals?
1. Carbon dioxide; water
2. Oxygen; glucose
Think back to the first day of this unit. Amylase is an enzyme. Where can we find this enzyme in our body?
Mouth/Saliva
Tell me about FADH2 and NADH and their role in cellular respiration
(i.e. where are they made, what do they do, where are they headed)
Made in the Krebs Cycle (NADH also made in Glycolysis) on their way to the ETC to drop of electrons
What are the two reactants of fermentation?
Pyruvic acid and NADH
Explain to me how C6H12O6 is made?
C and O come from Carbon Dioxide and H comes from NADPH
Describe to me how sun energy ends up allowing us to make ATP in our human bodies.
Plants take in sun energy to make glucose through photosynthesis. We take in glucose to go through cellular respiration to make ATP.
Fill in the blank: Phosphates in ATP don’t want to stay together because they are all __________ charged
Phosphates don’t want to stay together because they are all negatively charged
Pick someone to come to the board and accurately write the CHEMICAL equation for cellular respiration
6O2 + C6H12O6 ----> 6CO2 + 6H2O + energy
What two things does glycolysis make for fermentation and what is the one thing fermentation makes for glycolysis?
1. pyruvic acid; NADH
2. NAD+
Explain to me the pathway of energy in photosynthesis.
ATP and NADPH are made in the light-dependent reaction for the Calvin Cycle. Energy is used to go from ATP to ADP. NADPH drops of electrons and Hydrogen to become NADP+. ADP and NADP+ head back to the Light Dependent Reaction.
Why do we need both glucose AND ATP in our cells?
ATP is the energy source for cellular work. In order to make ATP, we need glucose to go through cellular respiration. Therefore we need both :)