Font size
WorksheetsGrade 8 8C Review
Total questions: 42
Worksheet time: 24mins
This chemical reaction is called:
Combustion
Anaerobic respiration
Aerobic respiration
Energy Release
The glucose used in aerobic respiration usually comes from ___________ in our diet
Fats
Carbohydrates
Protein
Water
Grapes
Choose the correct equation for aerobic respiration
Glucose + Oxygen → Carbon dioxide + Water
Glucose + Water → Carbon dioxide + Oxygen
Water + Carbon dioxide → Glucose + Oxygen
Carbon dioxide + Oxygen → Water + Glucose
This equation shows both aerobic respiration and combustion, but in aerobic respiration 'X' is ________ and in combustion 'X' is _______.
Fire; Glucose
Fuel/Hydrocarbon; Glucose
Glucose; Fire
Glucose; Fuel/Hydrocarbon
For aerobic respiration to occur, there needs to be:
Oxygen
Light
Water
Glucose
During breathing, the size of the lungs is changed by:
Bones
Muscles
Blood
The Heart
The movement of air in and out of the lungs (breathing) is called:
anaerobic Respiration
Cellular Respiration
Aerobic Respiration
Ventilation
Mucus in the lungs is used to:
Keep the lungs open
Keep the lungs in the right shape
Keep the lungs clean
Make the lungs bigger
Cilia in the lungs remove the used mucus and push it into the...
Oesophagus (gullet)
Mouth
Intestine
Stomach
Gas Exchange in the lungs consists of.....
Oxygen moving into the lungs and carbon dioxide leaving the blood plasma
Oxygen and carbon dioxide both entering the blood
Oxygen entering the blood plasma and carbon dioxide entering the lungs
Oxygen and carbon dioxide both entering the lungs
Gas exchange in the lungs occurs due to...
diffusion
muscles
Brownian motion
air
This image of lungs shows that they are designed to have...
Low surface area
Strong muscles
High surface area
Cellular Respiration
Mahatma is short of breath (has a hard time breathing), what are possible explanations?
He has asthma or another breathing disorder
He was just running
He is a heavy smoker (smokes many cigarettes)
He is at a very low altitude (close to the ground)
What are parts of the structure of the lungs?
Mouth
Bronchus (bronchi)
alveolus (alveoli)
Mitochondria
What is the 'range' of data?
The difference between the highest and the lowest number in the data
The average of all the numbers in the data
The difference between one data value and another
The mean of the data
What is the difference between an 'estimate' and a 'calculation'?
A calculation will give you an exact value, an estimate is a guess
A calculation cannot be done without a calculator, an estimate does not require a calculator
An estimate and a calculation are both done for averages
An estimate will give you the best answer and will be the same as a calculation
Here is Mr. Fielden's report card from semester one. Which grade could be considered an 'anomalous result'?
None are anomalous
Math
Chinese
Science
If discarding (getting rid of) an anomalous result, it is best to explain why you think the result shouldn't be included. Give a reason why Mr. Fielden's Chinese score is anomalous
Please identify the parts of blood
Red blood cell
White blood cell
Plasma
Nucleus
Mitochondria
The hemoglobin (haemoglobin) is the part of the blood that carries oxygen. Hemoglobin is in the _______ of the blood
Plasma
Red Blood cells
White blood cells
Blood that is carrying oxygen will be
Blue
Bright red
Red-brown
Pale Red
Oxygen leaves the red blood cells in the
veins
capillaries
arteries
heart
This gas will dissolve into the blood after the oxygen has left the blood
(a)
_______ carry blood FROM the heart, ______ carry blood TO the heart
capillaries; alveoli
bronchi; veins
arteries; veins
veins; alveoli
During exercise your ________ will increase
Breathing rate
Heart rate
Seeing rate
Digestion rate
"the blood vessels that give oxygen to the heart become narrow" describes...
a heart attack
heart disease
a heart beat
heart narrowing
Carbon monoxide is a dangerous poison because it can bind with hemoglobin which
stops oxygen from binding to hemoglobin
stops carbon dioxide from binding to hemoglobin
stops glucose from binding to hemoglobin
Stops blood from binding to hemoglobin
Smoking is dangerous for our health because tar and smoke from cigarettes damage the ________.
alveoli
bronchi
oesophagus
heart
Choose a situation(s) where you would want to 'hold your breath'
hiking up a mountain
swimming underwater
running a marathon
climbing a ladder
CPR can help save someone's life because...
CPR will wake the other person up when they are asleep
doing CPR gives the other person energy to move
People can use carbon dioxide to breath
Not all of the oxygen we breath goes into our bodies
'Rebreathers' are tanks of air that allow people to breath underwater and contain calcium hydroxide (Ca(OH)2). Use the equation below to describe how it works: Ca(OH)2 + CO2 -> H20 +CaCO3
calcium hydroxide removes carbon dioxide from the air in the tank
calcium carbonate adds oxygen to the tank
Calcium hydroxide removes water from the tank
Calcium hydroxide protects the tank from breaking
Calcium hydroxide (Ca(OH)2) is commonly used in labs to detect carbon dioxide and is sometimes called
calcium water
limewater
carbon dioxide water
white water
Which test tube and explanation correctly explains the test for carbon dioxide in limewater?
The limewater will turn white when carbon dioxide is created in the test tube
the limewater will turn white when carbon dioxide is present
The limewater will turn white when carbon dioxide is absent
The limewater will turn clear when carbon dioxide is present
In science class, colour-changing 'indicators' are often used to detect changes in...
temperature
pH
density
exercise
What are 'adaptations'?
Changes in clothing for different weather
Changes that help an organism be more successful in its environment
Ways to breath more air
Ways to do more exercise
Which mammal would you expect to have an adaptation to carry more hemoglobin?
human
whale
elephant
cat
Which body part do fish NOT have?
brain
heart
skin
lungs
Which processes do plants do?
Photosynthesis
Cellular respiration
Anaerobic respiration
Aerobic respiration
Most of the stomata (the holes that allow the plant to exchange gases) are located on the...
stem
leaves
petals
roots
The difference between aerobic respiration and anaerobic respiration is that...
Aerobic respiration occurs in animals and anaerobic respiration occurs in plants
aerobic respiration is a kind of cellular respiration and anaerobic respiration is not
aerobic respiration uses oxygen and anaerobic respiration does not use oxygen
aerobic respiration yields a little bit of energy and anaerobic respiration yields a lot of energy
If lactic acid is formed as a product then _____ occurred
cellular respiration
anaerobic respiration
aerobic respiration
complete respiration
Excess Post-exercise Oxygen Consumption or EPOC means that oxygen consumption after exercise is ______ the resting level oxygen consumption
higher than
lower than
the same as
