Transcript Respiration Game 1

Welcome to
© Amy Brown (aka Science Stuff) Feb 2012
Today’s exciting
topic….
PowerPoint Jeopardy
Let’s Get
Started!
Need
Energy?
Photo. vs Overview Glycolysis
Resp.
Part 1
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Give two reasons why food
is important to living
organisms.
Food serves as the source of energy for the
cells of the body.
Food serves as a source of raw materials
for the building of new molecules within
cells.
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Complete this sentence:
Energy flows into the ecosystem in
the form of _____ and exits the
ecosystem in the form of _____.
Sunlight
Heat
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_____ is not recycled and follows a
one-way path through our ecosystem.
_____ are recycled and are used over
and over again.
Energy
Chemical elements
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What organic molecule is the
primary source of energy for all
living things?
Glucose
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What is the definition of cellular
respiration?
Cellular respiration is the process
that releases the energy held in the
bonds of glucose and uses this
energy to form ATP.
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The principal chemical
compound that cells use to
store and release energy is?
ADP/ATP
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What do “ADP” and “ATP”
stand for?
ADP = Adenosine Diphosphate
ATP = Adenosine Triphosphate
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Name the three components to a
molecule of ADP or ATP.
Adenine, a nitrogen base
Ribose, a five carbon sugar
A chain of 2 or 3 phosphates
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How does ATP store energy?
When the third phosphate is joined to ADP
to form ATP, energy is stored in this bond.
Forming the bond to attach the third
phosphate, stores energy.
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How does ATP release energy?
When the cell needs energy, the
third phosphate is removed.
Breaking this bond releases
energy.
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What is the basic similarity and difference
between photosynthesis and respiration?
Similarity: Both processes involve energy
transformations.
Difference: Photosynthesis converts light energy
from the sun into the chemical
energy of a molecule of glucose.
Respiration breaks down the glucose,
releasing energy and converting this
energy to ATP.
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Where in the cell do photosynthesis
and respiration take place?
Photosynthesis takes place in the chloroplast.
Respiration takes place in the mitochondria.
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Give the reactants and the products of
photosynthesis.
Reactants: CO2 + H2O
Products: C6H12O6 + O2
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Give the reactants and the products of
cellular respiration.
Reactants: C6H12O6 + O2
Products: CO2 + H2O
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What living organisms carry out
photosynthesis?
What living organisms carry out cellular
respiration?
All green plants and a few bacteria that
contain chlorophyll carry out
photosynthesis.
All living things carry out cellular
respiration.
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Give the complete equation for
cellular respiration.
C6H12O6 + O2  CO2 + H2O + 38 ATP
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Name and describe the two types of
cellular respiration.
Anaerobic respiration – Does not
require oxygen
Aerobic respiration – Does require
oxygen.
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What are the three stages of
cellular respiration?
Glycolysis
Kreb’s Cycle
Electron Transport Chain
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Which stages of respiration are
aerobic and which are anaerobic?
Glycolysis is anaerobic.
Kreb’s cycle and the Electron
Transport Chain are both aerobic.
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Where does each stage of
respiration occur?
Glycolysis occurs in the cytoplasm.
Kreb’s cycle and the Electron Transport
Chain occur in the mitochondria.
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What is the definition of Glycolysis?
Glycolysis is the process in which one
molecule of glucose is oxidized to
produce two molecules of pyruvic
acid, generating a small supply of ATP
in the process.
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In order to start the process of glycolysis, a
small energy investment is needed. The
energy from how many ATP are required
to start the process of glycolysis?
2 ATP
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During glycolysis, glucose is
converted into what two different
compounds?
Glucose is first converted into 2
molecules of PGAL. Each PGAL
is then oxidized to form pyruvic
acid (pyruvate).
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What is the name of the electron carrier in
cellular respiration and what is the
function of this molecule?
The electron acceptor is NAD+.
NAD+ binds to H electrons and
carries these high energy electrons to
the electron transport chain.
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During glycolysis, the oxidation of
PGAL yields how many ATP?
What is the net gain of ATP during
glycolysis?
The oxidation of PGAL produces
4ATP.
Since 2 ATP were consumed at the
beginning of glycolysis, there is a net
gain of 2 ATP.
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