2440856
Descrição
Quiz por Gabi Germain, atualizado more than 1 year ago
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Criado por Gabi Germain
aproximadamente 9 anos atrás
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Questão 1
Questão
dissolved substances move by active transport and diffusion
Responda
- True
- False
Questão 2
Questão
how does water move across boundaries
Responda
-
diffusion
-
active transport
-
osmosis
Questão 3
Questão
osmosis is from an area of...
Responda
-
low concentration (dilute) to high concentration (concentrated)
-
high concentration to low
Questão 4
Questão
the membrane in osmosis is semi permeable
Responda
- True
- False
Questão 5
Questão
what causes the water to move In or out of the cell?
Responda
-
Difference in substance
-
Difference in concentration
-
Difference in energy
Questão 6
Questão
what do most soft drinks contain? (3 answers)
Responda
-
water
-
air
-
carbon dioxide
-
sugar
-
ions
Questão 7
Questão
why do sports drinks contain sugars?
Responda
-
so they can run faster and further
-
to replace sugar used in energy release during the activity
Questão 8
Questão
if water ions aren't replaced the ion/water balance of the body is disturbed so cells don't work efficiently.
Responda
- True
- False
Questão 9
Questão
why do sports drinks contain water?
Responda
-
to provide them with more energy
-
to replace water lost when sweating
Questão 10
Questão
which process of exchanging materials requires energy?
Responda
-
Osmosis
-
Active transport
Questão 11
Questão
Facts about active transport: (3 answers)
Responda
-
Substances absorbed with the concentration gradient
-
substances absorbed against the concentration gradient
-
uses energy from respiration
-
doesn't require energy
-
allows cells to absorb ions from very dilute solutions
Questão 12
Questão
How can you increase the efficiency of an exchange surface?
Responda
-
have a lower surface area
-
have a high surface area
-
being thin
-
having a long diffusion path
-
(In animals) having a good blood supply
-
being well ventilated (also only in animals)
Questão 13
Questão
why are exchange surfaces adapted in humans?
Responda
-
To increase effectiveness
-
to make sure things don't diffuse too fast
Questão 14
Questão
the size and complexity of an organism increases the difficulty of exchanging materials
Responda
- True
- False
Questão 15
Questão
what is the surface area of the lungs increased by?
Responda
-
alveoli
-
villi
Questão 16
Questão
what is the surface area of the small intestine increased by?
Responda
-
alveoli
-
villi
Questão 17
Questão
villi have an extensive network of capillaries to absorb products from digestion by active transport and diffusion
Responda
- True
- False
Questão 18
Questão
facts about the lungs: (4 answers)
Responda
-
protected by the ribs
-
below the diaphragm
-
above the diaphragm
-
diaphragm separates it from the thorax (the upper part of the body)
-
diaphragm separates it from the abdomen (lower part of the body)
-
in the upper part of the body
Questão 19
Questão
why does the breathing system take air into and out of the body?
Responda
-
so oxygen from the air can diffuse into the bloodstream and carbon dioxide can diffuse out into the air
-
so carbon dioxide from the air can diffuse into the bloodstream and oxygen can diffuse out into the air
Questão 20
Questão
what happens to make air move into the lungs, find the wrong answer?
Responda
-
ribcage moves up and out
-
ribcage move down and in
-
diaphragm becomes flatter
-
intercostal muscles contract as well as the diaphragm
Questão 21
Questão
the movement of air into and out of the lungs is known as what?
Responda
-
breathing
-
respiration
-
ventilation
Questão 22
Questão
carbon dioxide enters leaves by diffusion
Responda
- True
- False
Questão 23
Questão
where are most of the water and mineral ions absorbed?
Responda
-
the leaves from the air
-
the roots from the soil
Questão 24
Questão
how is the surface area of the roots increased?
Responda
-
by root hairs
-
by thin walls
Questão 25
Questão
how are leaves surface area increased?
Responda
-
by their flattened shape
-
internal air spaces
-
guard cells
-
being green
Questão 26
Questão
plants have stomata to get CO2 from the atmosphere and to remove/release oxygen produced in photosynthesis
Responda
- True
- False
Questão 27
Questão
where do plant mainly lose water vapour?
Responda
-
stem
-
leaves through the stomata
-
root systems
Questão 28
Questão
where is evaporation more rapid
Responda
-
hot dry windy conditions
-
cold wet and still conditions
Questão 29
Questão
if plants lose water faster than it is replaced what happens?
Responda
-
stomata close to prevent wilting
-
stomata open to induce wilting
Questão 30
Questão
the size of the stomata is controlled by the guard cells
Responda
- True
- False
Questão 31
Questão
What does the circulatory system do?
Responda
-
Transport blood around the body
-
Transport substances around the body
Questão 32
Questão
The heart is an organ that pumps blood around the body and the walls are made from mostly muscle tissue
Responda
- True
- False
Questão 33
Questão
How many chambers does the heart have?
Responda
-
2
-
3
-
4
Questão 34
Questão
when blood enters the atria they contract to force blood into where?
Responda
-
Vena cava
-
Pulmonary vein
-
ventricles
-
atrium
Questão 35
Questão
where do ventricles force blood?
Responda
-
Into the heart
-
Out of the heart
Questão 36
Questão
Where does blood flow through to the organs?
Responda
-
arteries and veins
-
capillaries and veins
-
arteries and capillaries
Questão 37
Questão
Arteries have thick walls containing muscle and elastic fibres
Responda
- True
- False
Questão 38
Questão
why do veins have thinner walls and valves?
Responda
-
to allow blood to flow faster
-
to prevent backflow of blood
-
to increase blood pressure
Questão 39
Questão
If arteries begin to narrow and restrict blood flow stents are used to keep them open
Responda
- True
- False
Questão 40
Questão
in organs where does the blood flow through, to get certain substances through their walls?
Responda
-
veins
-
arteries
-
capillaries
Questão 41
Questão
Facts about blood: (2 facts)
Responda
-
it is a tissue
-
consists of a fluid called plasma
-
Its red
-
platelets are suspended in the cells of blood
Questão 42
Questão
Blood plasma transports:
Responda
-
CO2 from organs to the lungs
-
CO2 out of the body
-
Urea from the liver to the kidneys
-
Soluble products of digestion from the small intestine to other organs
-
Soluble products of digestion from the large intestine to other organs
Questão 43
Questão
Red blood cells transport CO2 from the lungs to the organs
Responda
- True
- False
Questão 44
Questão
2 facts about white blood cells:
Responda
-
they have a nucleus
-
they have no nucleus
-
they form part of the body's defence mechanisms
-
carry oxygen
Questão 45
Questão
what are platelets and do they have a nucleus?
Responda
-
small fragments of a cell and yes
-
large fragments of a cell and yes
-
large fragments of a cell and no
-
Small fragments of a cell and no
Questão 46
Questão
Platelets help blood clot at the side of a wound
Responda
- True
- False
Questão 47
Questão
What does xylem tissue transport?
Responda
-
Water and mineral ions
-
Nutrients
Questão 48
Questão
What does phloem tissue transport?
Responda
-
dissolved sugars to the leaves
-
nutrients to the leaves
-
Phloemeliosus
Questão 49
Questão
the movement of water from the roots through the xylem out of the leaves is called the what?
Responda
-
Diffusion
-
Transpiration stream
-
Osmosis
Questão 50
Questão
How is carbon dioxide produced?
Responda
-
From trees
-
By respiration
-
Photosynthesis
Questão 51
Questão
Carbon dioxide is removed from the body by the lungs when we breathe out
Responda
- True
- False
Questão 52
Questão
How is urea produced?
Responda
-
The breakdown of amino acids in the liver
-
The breakdown of amino acids in the kidneys
Questão 53
Questão
Urea is removed by kidneys in the urine and stored by the bladder
Responda
- True
- False
Questão 54
Questão
A healthy kidney produces urine by: (3 points)
Responda
-
Filtering the blood
-
Reabsorbing urea
-
Reabsorbing dissolved ions, water and sugars
-
Releasing urea
-
Releasing all sugars
Questão 55
Questão
How can a person be treated with kidney failure?
Responda
-
Dialysis
-
Dieting
-
Kidney transplant
-
Exercising
Questão 56
Questão
Facts about dialysis: (4 points)
Responda
-
Restores concentration of dissolved substances in blood to normal levels
-
Permeable membrane
-
Partially permeable membrane
-
Dialysis fluid has the same concentration of useful substances as the blood
-
Removes urea from the blood
-
Removes glucose from the blood
Questão 57
Questão
The donor kidney may be rejected by the immune system unless precautions are taken
Responda
- True
- False
Questão 58
Questão
What are antigens?
Responda
-
Proteins on the surface of cells
-
Proteins on the surface of antibodies
-
Proteins in the blood
Questão 59
Questão
What two ways can rejection be prevented from a transplant?
Responda
-
Immunosuppressants and excersize
-
Diet and good tissue match
-
Good tissue match and taking immunosuppressants
Questão 60
Questão
More water is lost when it is cold and more water has to be taken in to balance this loss
Responda
- True
- False
Questão 61
Questão
Sweating helps to cool the body
Responda
- True
- False
Questão 62
Questão
Where is the body temperature controlled?
Responda
-
Skin (touch sensitive cells)
-
The thermoregulatory system
-
The prefrontal cortex
Questão 63
Questão
If the core body temperature is too high:
Responda
-
Blood vessels dilate
-
Blood vessels constrict
-
More sweat is produced
-
Less sweat is produced
Questão 64
Questão
If the core body temperature is too low:
Responda
-
Blood vessels dilate
-
Blood vessels constrict
-
Muscles shiver
-
Sweat is produced
Questão 65
Questão
Where is blood glucose monitored?
Responda
-
Pancreas
-
Liver
-
Kidney
Questão 66
Questão
The pancreas produces the hormone insulin which allows glucose to move from the blood into cells
Responda
- True
- False
Questão 67
Questão
glucagon is produced in the pancreas when blood glucose levels fall, but what does it do?
Responda
-
causes glucagon to be converted into glucose and this is released into the blood
-
Causes glycogen to be converted into glucose and be released into the blood
Questão 68
Questão
What are 3 ways type 1 diabetes can be controlled?
Responda
-
Diet
-
Exercise
-
Environment
-
Insulin injections
-
Glucose injections
Questão 69
Questão
Type 1 diabetes is when someones blood glucose rises too high as their pancreas doesn't produce enough insulin
Responda
- True
- False
Questão 70
Questão
Deforestation leads to ______ in biodiversity
Responda
-
Increase
-
reduction
Questão 71
Questão
Which gas is released when peat bogs were destroyed?
Responda
-
Carbon dioxide
-
Hydrogen
-
Oxygen
Questão 72
Questão
Fishing quotas and fish net size are two ways we can reduce the amount of fishing
Responda
- True
- False
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