Cellular Respiration Flashcards
What is aerobic?
Oxygen requiring
What is cellular respiration?
It is the aerobic harvesting of energy from food molecules by cells.
What kind of process is cellular respiration?
A exergonic process
What is redox reaction (oxidation-reduction reaction)?
The movement of electrons from one molecule to another.
What is oxidation?
The loss of electrons from one substance.
What is reduction?
The addition of electrons to another substance.
What is an important enzyme in oxidizing glucose?
Nad+
What does NAD+ get reduced to?
NADH
What are the 3 stages of cellular respiration?
- Glycolysis
- Pyruvate oxidation and citric acid cycle “Krebs Cycle”
- Oxidative phosphorylation “ETC” - electric transport chain
Where does glycolysis (first step of cellular respiration) happen?
Cytoplasm
Where does the Krebs (citric acid) cycle take place?
Matrix of mitochondria
Where does the oxidative phosphorylation “ETC - Electron transport chain” take place?
Inner membrane of mitochondria
What happens in glycolysis?
It breaks down glucose into two molecules of a three carbon compound called pyruvate.
Two molecules of Nad are reduced to two molecules of nadh
And a net of two molecules of atp is produced.
How is light travel and how do we measure it?
In waves that we measure by the distance between the waves.
How do we see green from tree leaves?
The tree leaves reflect chlorophyll that’s why we see green.
What is the goal of mitosis?
Ending with genetically identical daughter cells.
Goal of meosis?
Genetic variation and half chromosomes
Organisms that derive their energy either from the process of chemosynthesis or photosynthesis are called?
Heterotrophs
Plants need what to perform photosynthesis?
H20 and C02
Chyllorophyll will not absorb which color?
Green
Where in the plant cell is chlorophyll found?
In the thylakoid membrane.
The flow of what particle across membranes powers the production of atp?
Hydrogen ions!
Does the Calvin cycle of photosynthesis require light?
No
What does cellular respiration use for the final electron acceptor?
Oxygen
