MY WORKBOOK TOPIC 6 · 2020-06-12 · 5. Anaerobic respiration (5.1 Lactic fermentation; 5.2...
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Copyright Hoërskool Birchleigh – Mrs Nieman 1 MY WORKBOOK During this topic we will be looking at… 1. Introduction 2. Mitochondrion 3. Importance and equation of cellular respiration 4. Aerobic respiration (4.1 Glycolysis; 4.2 Kreb’s cycle; 4.3 Oxidative phosphorylation) 5. Anaerobic respiration (5.1 Lactic fermentation; 5.2 Alcoholic fermentation; 5.3 Role of anaerobic respiration in industry) 6. Comparing aerobic and anaerobic respiration 7. Practical investigations DAY 1: Complete page 1 and 2 of your workbook using the Teachers guidelines slide 3. 1. Introduction Living organisms need ______________to survive. Plants are _____________, as they manufacture their own food. Animals are ____________, since they cannot make their own food. They obtain energy by eating plants of other animals. TOPIC 6 CELLULAR RESPIRATION
Transcript of MY WORKBOOK TOPIC 6 · 2020-06-12 · 5. Anaerobic respiration (5.1 Lactic fermentation; 5.2...
Copyright Hoërskool Birchleigh – Mrs Nieman 1
MY WORKBOOK
During this topic we will be looking at…
1. Introduction
2. Mitochondrion
3. Importance and equation of cellular respiration
4. Aerobic respiration (4.1 Glycolysis; 4.2 Kreb’s cycle; 4.3 Oxidative
phosphorylation)
5. Anaerobic respiration (5.1 Lactic fermentation; 5.2 Alcoholic fermentation; 5.3
Role of anaerobic respiration in industry)
6. Comparing aerobic and anaerobic respiration
7. Practical investigations
DAY 1:
Complete page 1 and 2 of your workbook using the Teachers guidelines
slide 3.
1. Introduction
Living organisms need ______________to survive. Plants are _____________, as
they manufacture their own food. Animals are ____________, since they cannot
make their own food. They obtain energy by eating plants of other animals.
TOPIC 6 CELLULAR RESPIRATION
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Cellular respiration ____________ the energy in food, so that the organism can
get the energy it requires.
• When oxygen is available to a cell, ________________________take place
and lots of energy is released and stored as adenosine triphosphate (ATP).
• When oxygen is not available to a cell, _________________________occurs
and little energy is released.
2. Mitochondrion
Please do Activity 1 by drawing the mitochondrion below using slide 4 of the
Teachers guidelines
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Complete page 3 of your workbook using the Teachers guidelines slide 5 – 6.
3. Importance and equation of cellular respiration
• All living organism are made of __________which are continuously doing
work that ___________ energy.
• Therefore the cells must have a constant____________ of energy in the form
of _______.
Copy word and chemical equations:
4. Aerobic respiration
Products formed during aerobic respiration:
• _________________, which is released into the atmosphere and some of
which is used during photosynthesis in plants
• ___________, which is used metabolically
• _________(adenosine triphosphate), which is the energy that is released
Aerobic respiration occurs in three distinguished stages:
4.1 ____________________________
4.2 ____________________________
4.3 ____________________________
END OF DAY 1
HOW DO YOU FEEL ABOUT THE WORK OF DAY 1? or
IF YOU DO NOT FEEL COMFORTABLE WITH THE WORK, CONSIDER TO
WORK THROUGH THE CONTENT AGAIN.
Copyright Hoërskool Birchleigh – Mrs Nieman 4
DAY 2:
Complete page 4 of your workbook using the Teachers guidelines slides 7 –
8.
(4.1) GLYCOLYSIS
• Glycolysis occurs in the ____________ just outside the mitochondria.
• “Glyco” means ____________ and “lysis” means _______________.
• Glucose (which consists of 6 carbon(C) atoms) is _______________step by
step.
• Two molecules of ___________, with 3 carbon(C) atoms each are formed.
• _________________________(hydrogen atoms), as well as a small amount
of energy is released and stored in _________.
• Co-enzymes (hydrogen carriers) carry the energy-rich hydrogen atoms to the
third phase (oxidative phosphorylation).
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Complete page 5 of your workbook using the Teachers guidelines slides 9 -
10.
(4.2) KREBS CYCLE
• The Kreb’s cycle takes place inside the________________________.
• This phase is an aerobic phase as it requires___________________.
• Pyruvic acid ______________the mitochondrion.
• A series of cyclic reactions take place.
• Energy-rich H-atoms and _______________________through the lungs.
• Coenzymes act as hydrogen carriers that transmit the energy-rich H-atoms to
the next phase, Oxidative phosphorylation.
Copyright Hoërskool Birchleigh – Mrs Nieman 6
Complete page 6 of your workbook using the Teachers guidelines slides 11
- 12.
(4.3) Oxidative phosphorylation
• Oxidative phosphorylation takes place on the inner folded membrane
(__________) of the __________________________.
• This phase requires _____________and is therefore an aerobic phase.
• Energy-rich H-atoms from the Kreb’s cycle carried to a hydrogen transfer
system by co-enzymes.
• H-atoms are transferred from one hydrogen acceptor to the next.
• Every time an H-atom is transferred form one acceptor to the next,
_________________________________________.
• This energy binds a phosphate (P) molecule with ADP to form ATP, which is
the energy carrier in the cell.
• Oxygen is the final hydrogen acceptor.
• Two hydrogen atoms combine with one oxygen atom to form a molecule of
___________ (__________).
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Complete page 7 of your workbook using the Teachers guidelines slide 13.
In summary:
END OF DAY 2
HOW DO YOU FEEL ABOUT THE WORK OF DAY 2? or
IF YOU DO NOT FEEL COMFORTABLE WITH THE WORK, CONSIDER TO
WORK THROUGH THE CONTENT AGAIN.
For additional information refer to your textbook page 196 – 197.
Glycolysis
• Glucose is _________up into two smaller molecules (known as pyruvic acid) that can diffuse easily into the mitochondrion.
• Some ATP, H and some CO₂ are released
Kreb’s cycle
• CO₂ and energy-rich hydrogen atoms are released.
• CO₂ is __________ by the lungs.
Oxidative Phosphorylation
• Energy-rich hydrogen loses energy which combines with ADP + P to form _______.
• Energy-poor hydrogen combines with O₂ to form _______.
Copyright Hoërskool Birchleigh – Mrs Nieman 8
DAY 3:
Complete page 8 and 9 of your workbook using the Teachers guidelines
slides 14 – 17.
5. Anaerobic respiration
When respiration takes place in the_____________________, it is known as
anaerobic respiration.
Glucose is only partially broken down and therefore less energy is released.
Anaerobic respiration can be seen in three ways:
5.1 _______________________(in the muscles during exercise)
5.2 _______________________(in plants, e.g. yeast)
5.3 ________________________________________________________________.
5.1 Lactic fermentation (in the muscles during exercise)
• During ___________exercise, the muscles do not receive ______oxygen.
• The muscle cells must therefore respire anaerobically.
• _________________________takes place.
• Glucose is broken down and ________________is formed.
• Only a ____________amount of energy is released.
• Pyruvic acid is converted into ________________, which is released in the
muscle cells.
• Lactic acid is a toxin that leads to muscle__________ and_______________.
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5.2 Alcoholic fermentation (in plants, e.g. yeast)
• Only _________________ occurs.
• Glucose is broken down and _________________ is formed.
• Only a _______ amount of energy is released, pyruvic acid is broken down
further.
• ____________________ is released and ____________ (ethanol) is
released.
5.3 Role of anaerobic respiration in industry
• Yeast cells and other fungi respire ______________________ and are used
to produce alcoholic beverages, such as beer and wine.
• Yeast cells are also used to cause bread to rise during the baking process.
• Certain bacteria can be used to produce cheese, yoghurt and sour milk under
anaerobic conditions in the presence of sugar (lactose)
The use of these living organisms in industrial processes such as food processing, is known as ______________________.
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6. Comparing aerobic and anaerobic respiration
Please do Activity 2 by completing the table below using slide 18 of the
Teachers guidelines
AEROBIC RESPIRATION ANAEROBIC RESPIRATION
END OF DAY 3
HOW DO YOU FEEL ABOUT THE WORK OF DAY 3? or
IF YOU DO NOT FEEL COMFORTABLE WITH THE WORK, CONSIDER TO
WORK THROUGH THE CONTENT AGAIN.
Copyright Hoërskool Birchleigh – Mrs Nieman 11
DAY 4:
Complete page 11 – 13 of your workbook using the knowledge acquired in
the previous pages of your workbook.
In summary: (Just to recap)
Please do Activity 3
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Please do Activity 4
{Activity 4 continues on page 13}
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Answers to Activity 3 and Activity 4 will be shared the morning of day 5 on the
whatsApp group.
My mark ______ out of 100.
END OF DAY 4
HOW DO YOU FEEL ABOUT THE WORK OF DAY 4? or
IF YOU DID NOT RECEIVE 50% FOR ACTIVITY 4, CONSIDER WORKING
THROUGH THE CONTENT AGAIN.
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DAY 5:
Study page 14
7. Practical investigation
Investigation: Is oxygen used by living organisms during cellular respiration?
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Please do Activity 5
Answers to Activity 5 will be shared the morning of day 6 on the whatsApp
group.
My mark ______ out of 16.
END OF DAY 5
HOW DO YOU FEEL ABOUT THE WORK OF DAY 5? or
IF YOU DID NOT RECEIVE 50% FOR ACTIVITY 5, CONSIDER WORKING
THROUGH THE CONTENT AGAIN.
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DAY 6:
Use the completed “My workbook”, the Teacher’s guidelines and page 194 –
207 in your textbook to complete the terminology list below.
Answers to the Terminology list will be shared the morning of day 7 on the
whatsApp group.
My mark ______ out of 13.
END OF DAY 6
HOW DO YOU FEEL ABOUT THE WORK OF DAY 6? or
IF YOU DID NOT RECEIVE 70% FOR THE TERMINOLOGY, CONSIDER
WORKING THROUGH THE CONTENT AGAIN.
END OF TOPIC 6
