3309708
Beschreibung
Quiz von Mrs. Reema Al Bitar, aktualisiert more than 1 year ago
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Erstellt von Amy Arthur
vor mehr als 8 Jahre
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Kopiert von Mrs. Reema Al Bitar
vor mehr als 8 Jahre
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Frage 1
Frage
What is homeostasis?
Antworten
-
The maintenance of a constant internal environment
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The maintenance of a person's body (internal and external)
Frage 2
Frage
What are the things that need to be controlled in our body?
Antworten
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Body temperature
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Water content
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Ion content
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Blood sugar levels
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CO2
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Urea
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Proteins
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Sweating
Frage 3
Frage
What is the temperature at which enzymes work best?
Antworten
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20oC
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27oC
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30oC
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37oC
Frage 4
Frage
Why is it important to control our body's water content?
Antworten
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Too much water could move into or out of our cells which will damage the cells.
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Too much water could move into the cells making us over-hydrated and the cells won't work as well.
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Not enough water could move into the cells meaning that they will get dehydrated and won't work as well.
Frage 5
Frage
If the ion (or water) content of the body is wrong, it could upset the balance between ion and water. Why is this?
Antworten
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Too much/too little water is drawn in by osmosis > damages the cells
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Too much/too little water is drawn in by diffusion > damages the cells
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Too much/too little water is drawn in by active transport > damages the cells
Frage 6
Frage
What are the two waste products of our body that need to be controlled?
Antworten
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Carbon Dioxide
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Urea
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Carbon Monoxide
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Urine
Frage 7
Frage
How is CO2 removed from the body?
Antworten
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By the lungs
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By the liver
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By the windpipe
Frage 8
Frage
Where does urea come from?
Antworten
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The reactions from the conversion of excess amino acids to fats and carbohydrates
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The excess products from our food that we consume
Frage 9
Frage
Urea is made from excess amino acids and is made in the liver
Antworten
- True
- False
Frage 10
Frage
Urea is not poisonous and is released into the bloodstream by the kidney
Antworten
- True
- False
Frage 11
Frage
What organ filters the blood?
Antworten
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Liver
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Small intestine
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Large intestine
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Kidney
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Lungs
Frage 12
Frage
How is urea removed from the body?
Antworten
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Filtered from the blood by the kidneys > temporarily stored in the bladder > excreted from the body in urine
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Filtered from the blood by the liver > temporarily stored in the small intestine then to the large intestine > excreted through faeces
Frage 13
Frage
How do ions enter the blood?
Antworten
-
Taken in by what we drink and then absorbed into the blood
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Taken in by the food we eat and then absorbed into the blood
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Taken in by what we eat and drink and then absorbed into the blood
Frage 14
Frage
Excess ions are removed by the liver
Antworten
- True
- False
Frage 15
Frage
How are some ions also lost?
Antworten
-
Sweating
-
Breathing
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Farting
Frage 16
Frage
The kidneys also adjust the water content of the blood to keep it controlled
Antworten
- True
- False
Frage 17
Frage
Water is taken into our body as food and drink. How is it lost?
Antworten
-
Sweating
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Breathing out
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Urinating
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In faeces
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Breathing in
Frage 18
Frage
We can control how much water is lost through breathing
Antworten
- True
- False
Frage 19
Frage
We can control our water content through how much is consumed, sweated out and the amount that is excreted by kidneys in urine
Antworten
- True
- False
Frage 20
Frage
When our body gets too hot...
Antworten
-
Hairs lie flat
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Hairs stand up (to trap insulating layer of air)
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Sweat is produced, evaporating heat from the body
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No sweat is produced
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Blood vessels supplying the skin dilate
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Blood vessels supplying the skin constrict
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Our muscles constrict (shivering)
Frage 21
Frage
When our body gets too cold...
Antworten
-
Hairs lie flat
-
Hairs stand up (to trap insulating layer of air)
-
Sweat is produced, evaporating heat from the body
-
No sweat is produced
-
Blood vessels supplying the skin dilate
-
Blood vessels supplying the skin constrict
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Our muscles constrict (shivering)
Frage 22
Frage
On a cold day...
Antworten
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We sweat and have more urine (pale coloured and dilute)
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We sweat and have less urine (dark coloured and concentrated)
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We don't sweat and have more urine (pale coloured and dilute)
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We don't sweat and have less urine (dark coloured and concentrated)
Frage 23
Frage
On a hot day...
Antworten
-
We sweat and have more urine (pale coloured and dilute)
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We sweat and have less urine (dark coloured and concentrated)
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We don't sweat and have more urine (pale coloured and dilute)
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We don't sweat and have less urine (dark coloured and concentrated)
Frage 24
Frage
Sports drinks are good to consume because they replace water, sugar and ions that are used up during exercise
Antworten
- True
- False
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