Transcript B2 Additional Biology - Flintshire County Council

Quick fire questions on whiteboards
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Cell structure & specialised cells
Diffusion
Photosynthesis
Distribution
Enzymes
Respiration
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Questions
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One point made = 1 mark; LOOK at the number
of marks
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Long questions: underline key parts of the
question or any important parts of text given
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If you don’t recognise the context of a question,
think about the topics that it might be about
◦ Describe
◦ Explain
◦ Evaluate; compare /contrast
?
a. cytoplasm
b. cell wall
c. chloroplast
d. cell membrane
?
a. cell wall
b. cell membrane
c. vacuole
d. cytoplasm
?
a. cytoplasm
b. vacuole
c. chloroplast
d. nucleus
?
a. cytoplasm
b. cell wall
c. chloroplast
d. cell membrane
?
a. cytoplasm
b. vacuole
c. chloroplast
d. nucleus
?
a. cytoplasm
b. vacuole
c. chloroplast
d. nucleus
Which structures are present in animal
and plant cells?
a)
b)
c)
d)
Vacuole, nucleus and cell membrane
Nucleus, cell wall, cytoplasm
Nucleus, cell membrane, cytoplasm
Cell membrane, chloroplast, cell wall
Which structures are present only in plant cells?
a)
b)
c)
d)
Cell membrane, nucleus, cytoplasm
Cell wall, cell membrane, vacuole
Nucleus, chloroplast, cytoplasm
Chloroplast, cell wall, vacuole
What is the function of the
chloroplast?
a)
b)
c)
d)
Controls the cell
Stores water and mineral ions
Makes glucose by photosynthesis
Controls what enters and leaves the cell
What is the function of the cell
membrane?
a)
b)
c)
d)
Supports and protects the cell
Controls the cell
Controls what enters and leaves the cell
Metabolic reactions occur here
What is the function of the cell wall?
a)
b)
c)
d)
Supports and protects the cell
Stores water and mineral ions
Controls the cell
Controls what enters and leaves the cell
What is the function of the cytoplasm?
a)
b)
c)
d)
Stores water and mineral ions
Metabolic reactions occur here
Controls what enters and leaves the cell
Supports the cell
What is the function of the sap
vacuole?
a)
b)
c)
d)
Supports and protects the cell
Controls what enters and leaves the cell
Controls the cell
Stores water and mineral ions
What is the function of the nucleus?
a)
b)
c)
d)
Supports and protects the cell
Controls the cell
Controls what enters and leaves the cell
Metabolic reactions occur here
The two cells illustrated below show a typical:
a)
b)
c)
d)
Red blood cell and root hair cell
Ciliated cell and xylem vessel
Liver cell and palisade cell
Muscle cell and mesophyll cell
Question 16
a) Similarities:
Yeast Cell
Bacterial Cell
b) Differences:
Question 16
Similarities:
- Both have a cell
wall
Yeast Cell
Bacterial Cell
Differences:
- Bacteria = no nucleus, no
mitochondria
- Bacteria can have
additional structures e.g.
flagellum, capsule
Question 17
a) Name the cell
b) Describe an adaptation
c) Explain an adaptation
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Streamlined and a tail (‘flagellum’) to help it
swim
Has lots of MITOCHONDRIA
This allows it to release
Lots of energy for swimming
Question 18
a) Name the cell
b) Describe an adaptation
c) Explain an adaptation
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LOTS of chloroplasts
This helps it absorb more light for
photosynthesis
Question 19
a) Name the cell
b) Describe an adaptation
c) Explain an adaptation
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It is a ‘bi-concave disc’
This increases its surface area to absorb
oxygen
It also has no nucleus
This makes more space for
oxygen
Question 20
a) Name the cell
b) Describe an adaptation
c) Explain an adaptation
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Has a large surface area
Has a thin cell membrane
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This helps it absorb water and nutrients easier
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Boardworks slide removed for copyright
reasons
Describe and explain what the graph shows
[4]
Rate of reaction
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37
Temp (oC)
Boardworks slide removed for copyright
reasons
Explain how fats are broken down in the
digestive system.
Key words: lipase, enzymes, pancreas,
liver, bile, neutralise, emulsify
a)
b)
c)
d)
Washing powders
Slimming foods
Producing glucose syrups
Pre-digesting baby foods
a)
b)
c)
d)
Washing powders
Slimming foods
Producing glucose syrups
Pre-digesting baby foods
a)
b)
c)
d)
Washing powders
Slimming foods
Producing glucose syrups
Pre-digesting baby foods
a)
b)
c)
d)
Can be re-used therefore reduced
long-term costs
Allow reactions to occur at lower
temperatures, saving energy
Denature at high temperatures
Allow reactions to occur at lower
temperatures, saving money
Gas / liquid
- High to low concentration
- Random movement
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1.
2.
3.
4.
5.
6.
Your DNA is separated into strands called
a)
___________
Small sections of a chromosome are called
b)
_____
Genes code for a particular characteristic
They do this by containing a code of _____
c)
d)_____
for a SPECIFIC sequence of _____
The sequence of amino acids codes for a
e) to be made
SPECIFIC _______
E.g. a protein for blue eyes
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b) If you want to investigate how distance affects
photosynthesis, how could you prevent the
impact of heat from the lamp?
a)
d)
e)
b)
c)
f)
Rate of
Photosynthesis
Stage 2
Stage 1
Concentration
of Carbon
Dioxide
Key words: tape measure, transect,
quadrat, regular intervals, count
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Place tape measure across the area being
investigated (i.e. pond to woods)
This forms your TRANSECT line
At REGULAR INTERVALS
Along the transect, place your quadrat
Count the no. of species present, and the no.
of individuals of each species
Repeat steps along another transect line
Time
0
1
2
3
4
5
pH
8.5
7.2
6.7
6.3
5.9
5.5
A
B
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Heart rate increases as exercise occurs
◦ This is because muscle cells require more oxygen
and glucose, and to get rid of CO2. Blood pumped
faster.
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Heart rate remains high for a short while after
exercising
◦ This is so muscle cells continue to get oxygen to
break down any lactic which may have formed
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Heart rate decreases steadily back to resting
A
B
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Person B = fitter
Lower resting heart rate
Heart rate doesn’t rise as much during
exercise
Heart rate doesn’t rise as quickly during
exercise
Heart rate returns to resting faster after
exercise
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Aerobic requires oxygen
Aerobic releases more energy
Aerobic produces CO2 and H2O
Anaerobic produces lactic acid
Both take place in mitochondria of cells