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WorksheetsY10 Biology revision
Total questions: 84
Worksheet time: 2hrs 32mins
Which of the following are chambers of the heart?
Valves
Atrium and ventricle
Arteries and veins
Sinoatrial nerve
Which of the following is true about your heart?
Your heart may stop beating from time to time.
You have to think in order to keep your heart beating.
Your heart pushes blood through your body.
All of the above
The pulmonary artery is the artery that carries the blood to your heart from your lungs.
True
False
Electric instruments that doctors place inside a person's right atrium to control / fix an irregular heartbeat.
heart attack
Pacemaker
stroke
angioplasty
Your heart is a ____, so it needs exercise to keep it strong.
artery
bone
muscle
tissue
Where are the natural pacemaker cells of the heart found?
(These send out the electrical impulses that cause the heart to beat).
The right atrium
The left atrium
The right ventricle
The left ventricle
Protease breaks down (a) molecules.
Lipase breaks down (a) molecules.
Amylase breaks down (a) molecules.
Type answer in lowercase.
What is the name of the process where particles move from a high concentration to a low concentration (down a concentration gradient)?
Diffusion
Osmosis
Active Transport
If an image is blurry under a microscope, how do you make it clearer?
Change the objective lens to a higher magnification.
Turn on the light or adjust the mirror.
Turn the focusing wheel until the image is focused.
Use a different eyepiece lens.
What is the equation to work out overall magnification from eyepiece magnification and objective lens magnification?
Overall= Objective x Eyepiece
Overall= Objective/Eyepiece
Overall= Eyepiece/Objective
How do you calculate actual specimen size from magnification and image size?
Actual = Magnification / Image Size
Actual =Image Size / Magnification
Actual = Image Size x Magnification
What is meant by a prokaryotic cell?
A cell without a nucleus
A cell with a nucleus
A cell without a cell membrane
A cell with two nuclei.
Which statement is false about eukaryotic cells?
They can have mitochondria, chloroplasts and vacuoles.
They have a nucleus
They are much smaller than prokaryotic cells.
Animal and plant cells are examples of eukaryotic cells.
Which process involves the release of energy from food substances in all living cells?
breathing
nutrition
respiration
digestion
Beta-blockers are drugs used to slow down heart-rate. They can be used to treat high blood pressure. Which of the following statements are true?
Beta-blockers reduce cardiac output
Beta blockers increase cardiac output
Why might an athlete on beta blockers not perform as well?
Tick all that apply
Reduced cardiac output
Less oxygen and glucose gets to muscle tissue
Less lactic acid removed from muscle tissue
Less aerobic respiration
What part of the heart delivers unoxygenated blood to the lungs?
Pulmonary artery
Pulmonary Vein
Aorta
Left Ventricle
What part of the heart delivers richly oxygenated blood to the body?
Tricuspid Valve
Superior Vena Cava
Aorta
Pulmonary artery
What part of the heart delivers oxygenated blood to the heart?
Pulmonary artery
Pulmonary Vein
Aorta
Tricuspid Valve
The drug digitalis is used to treat heart conditions. Where does this drug come from?
Sunflowers
Foxgloves
Snowdrops
Bluebells
When we refer to 'growth' with bacteria, we are talking about the population and not the size of the bacteria.
False
True
Why do bacteria enters the stationary phase?
Because of the limitation of essential nutrients and accumulation of toxic by-products.
Because they get tired.
Because of depletion of nutrients.
Which of the following is the type of reproduction found in most unicellular prokaryotic microorganisms?
Budding
Binary Fission
Fragmentation
Things bacteria need to grow/ increase population size.
Tick all that apply.
Oxygen
Carbon dioxide
A positive mental attitude
Nutrients
Select all of the environmental factors that would increase transpiration.
Increased humidity
Increased wind speed
Increased temperature
Decreased surface area
Photosynthesis is the process that converts carbon dioxide and water into
carbon and oxygen
glucose and hydrogen
glucose and oxygen
nitrogen and carbon
Why would the tap on a potometer be opened?
to supply the plant with more water for photosynthesis
to allow more air bubbles into the apparatus
to move the air bubble back to zero so the experiment can be repeated
to allow the plant to get rid of waste products
In what direction would the air bubble in the capillary tube move when the plant transpires?
right
left
left then right
right then left
A student uses a potometer to investigate the effect of temperature on the rate of transpiration.
What would be the dependent variable in this experiment?
temperature
mass of plant
time allowed for transpiration
distance moved by bubble in a fixed time
A student uses a potometer to investigate the effect of temperature on the rate of transpiration.
Why use a narrow capillary tube rather than a wider piece of tubing?
It's less likely to break.
Small changes in transpiration rate are easier to see - increases the resolution.
The temperature needed for the experiment will decrease.
The bubble is less likely to pop.
What happens to the number of bacteria in a liquid culture when there are plenty of nutrients and oxygen?
They die.
They explode.
They multiply so the number increases exponentially.
They multiply so the number decreases exponentially.
Why do bacteria need oxygen?
So they can respite anaerobically to get energy
So they can respire anaerobically to get energy
So they can respite aerobically to get energy
So they can respire aerobically to get energy
What happens to the number of bacteria in a liquid culture when binary fission rate is equal to death rate?
Increases
Remains constant
Decreases
What happens to the number of bacteria in a liquid culture when nutrients run out?
Increases until the limit is hit
Remains constant
Decreases until all bacteria die
The following are ways in which the spread can be prevented
Spraying insecticides
Mosquito nets
Antimalarial drugs
Vaccination
All of the above
The main human cells impacted by (and causing symptoms to ) malaria are
Salivary glands
Red blood cells
Liver cells
Brain cells
= 1 mm?
To calculate actual size we use.....
image size ÷ magnification
image size x magnification
magnification ÷ image size
Label the part of the microscope. What is part D?
body
foot
objective lens
turret
Label the part of the microscope. What is part F?
stage
stage clips
body
focus knob
When focusing the microscope you should...
not do anything, let others try it, it's scary
start with the highest power, bigger is always better
start with the 10x setting to find the specimen
play with it until it breaks and teacher get angry
To focus, slowly turn the _____________ adjustment knob.
To adjust the focus, slowly turn the _______________ adjustment knob.
coarse, rude
fine, coarse
fine, fishy
coarse, fine
Name the part of the microscope
Eyepiece
Stage
Fine focus knob
Objective Lens
Name the part of the microscope
Course focus knob
Fine focus knob
Neck
Eyepiece
To start using the microscope set the objective lens to
4X
10X
40X
Which comes first?
Turn on the light
Look through the eyepiece and focus the image
Which comes first?
Turn off the light
Put the prepared slide on the stage under the clips
Eyepiece = 20X
Objective lens = 20X
Ocular lens = 10x
Objective lens = 55x
What are the 2 main functions of the Cardiovascular System
Supply the body with Oxygen and Nutrients
To support the body
To attach bones to muscles
To remove waste products
What is Heart Rate?
Number of beats per second
Number of beats per minute
Number of beats per hour
What is Stroke Volume?
Amount of blood pumped out of the heart per hour
Amount of blood pumped out of the heart per minute
Amount of blood pumped out of the heart per beat
What is the equation for Cardiac Output? (The amount of blood pumped out of the heart per minute)
Heart Rate x Stroke Volume
Stroke Volume x Tidal Volume
Tidal Volume x Heart Rate
