Biology 20 – Unit C
Cellular Respiration
Chapter 7.1
Pages 202-209
Learner Outcomes:

To explain the role of cellular respiration in releasing potential energy from organic compounds

To summarize and explain the role of ATP in cellular metabolism
- active transport, cytoplasmic streaming, phagocytosis, biochemical synthesis, muscle
contraction, heat production

To distinguish, in general terms, between aerobic and anaerobic respiration and fermentation in
plants, animals and yeast
The Importance of Cellular Respiration

When cells require energy for a particular process, it must be supplied in
_______________________________________________________________

The cells of both animals and plants release the energy stored in the
____________________________________________________________through the process of
____________________________________________________________________
Cellular Respiration
________________________________________ ___________________________________________
_______________________________________ __________________________________________
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Biology 20 – Unit C
Electron Carriers

_________________________is a reduced form of _________________(nicotinamide adenine
dinucleotide)

_______________________ is the reduced form of___________________(flavin adenine
dinucleotide)
These compounds serve as
__________________________________________________________________________________

The transfer of electrons from one reactive atom to another produces more stable ions or
compounds

Energy is _____________________________________________________

This energy can be used to _________________________

______________________ __________________
Questions
1. What is the primary function of cellular respiration?
2. How do the oxidation and reduction reactions in electron transfer help form ATP?
Energy, Cells and ATP

________________________________________moves substances
_________________________________________________into or out of the cell using
___________________and _____________________________________often referred to as
‘pumps’.
Example: sodium-potassium pump
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Biology 20 – Unit C
Other Processes that Require ATP

Chromosome movements during __________________________________

Movement of organelles such as ______________________________________

________________________________________________

Formation of _____________________________________

Beating of ___________________________________________________________

___________________________________of skeletal, smooth and cardiac muscles

__________________________________________________in protein synthesis

Building new strands of __________________________________________________

Switches certain _________________________________________________

Produces _____________________________________________________________such as
glow-worms and fireflies
Glucose and ATP

Virtually________________________________________________________________________
_______________________________________.

___________________________________________be used directly by cells

Glucose has the equivalence of
________________________________________________________________

Glucose must be ____________________________________________so it can be used by the
cell
Vending Machine Analogy

Cells are like vending machines – they can only accept one dollar coins _____________________
Glucose is like $100 bill – we need to get change in the form of dollar coins (ATP) before the vending
machine ___________________________can use it.
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Biology 20 – Unit C
Questions:
3. Active transport involves carrier proteins imbedded in the membranes of cells. How do these
carrier proteins use ATP to transport molecules across the membrane?
4. How is ATP used in muscle contraction?
5. One glucose molecule has 100 times more stored energy than one ATP molecule. Explain why
cells can’t use glucose to run their processes.
Releasing Energy

During cellular respiration, energy is ________________________as the high energy glucose
molecule is ______________________________________________________________

In accordance with the Second Law of
Thermodynamics,________________________________________________________________
___________________________– cellular respiration is
________________________________________at converting glucose into the
___________________________________________

The remaining___________________________________________, which in the case
of______________________________________________, maintains our constant body
temperature
Two Types of Cellular Respiration

Aerobic Cellular Respiration –
______________________________________________________________________________
___________________________________________________________________________

The end products of aerobic cellular respiration
are___________________________________________________________________
____________________________________________ ______________________________
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Biology 20 – Unit C
Aerobic Cellular Respiration Stages
Stage 1: __________________________________
Stage 2: __________________________________________
Stage 3: __________________________________________
Stage 4: ______________________________________________________________________
Anaerobic Cellular Respiration

______________________________________________________________________________
______________________________________________________________________________

There are two types of anaerobic cellular respiration:
_____________________________________ ____________________________________________
_____________________________________ ____________________________________________
Anaerobic Cellular Respiration Stages
Stage 1: ______________________________________________
Stage 2:______________________________________________
* Aerobic cellular respiration produces ____________________________________than either
anaerobic cellular respiration
Assignment:
Do 7.1 Questions #1 – 5
Page: 209
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