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