Font size
WorksheetsFORM 1 SCIENCE (JEYAM)
Total questions: 20
Worksheet time: 17mins
The..................... of an organism always changes due to the changes that occur inside and outside of the body.
internal environment
external environment
increase
homeostasis
When the internal environment of an organism changes, ............occurs in the body.
corrective mechanism
control center
stable condition
homeostasis
The definition of Homeostasis?
is a process of regulating the sugar level in our body to be normal and stable condition.
is a process of regulating the internal environment of the body to be in a balanced and stable condition.
is a process of regulating the external environment of the body to be in a balanced and unstable condition.
is a process of regulating the internal environment of the body to be in a unbalanced and stable condition.
...........% of our body mass is ............ .
50% and air
100% and muscle
70% and water
25% and bone marrow
Excessive lost of water makes us feel ............and this can be...........in the long term.
strong and safe
weak and protected
thirsty and secured
thirsty and fatal
Our body temperature needs to be always maintained at ......oC.
50 oC
27 oC
37 oC
42 oC
An extra ....... oC rise in the body temperature can affect the functions of the body cells and can cause ............
6 oC and death
1 oC and death
10 oC and hell
7 oC and heaven
Regulation of water content and ................. are important homeostasis to .............. life.
glucose level and sustain
blood pressure and end
blood level and carry on
body temperature and sustain
(INCREASE) detected by (.................) and sends the information to the (.....................) and then (DECREASES)
Corrective mechanism and Control centre
Brain and nerve system
Control centre and corrective mechanism
Stimuli and receptors
How are you doing so far my dear students?
Not bad
Dying
RIP
Doing Good
REGULATION OF WATER CONTENT
The systems involved in the regulation of water content are ................. and .......................
excretory system and digestive system.
blood circulatory system and nervous system
reproductive system and respiratory system
Endocrine system and excretory system
The regulation of water content in the body can be achieved by controlling the ...................... production from the .................... using ....................
- Volume of sperm
- testis
- reproduction system
- volume of water
- pancreas
- digestive system
volume of urine
kidneys
corrective mechanisms
volume of sweat
skin
corrective mechanisms
What will happen if we drink a lot of water and sweat less?
The water content in our body will increase
The sweat in our body will increase
The body temperature will increase
We will be fat
The increase in water level in our body is detected by the brain and corrective mechanisms occur to stimulate the ........................................ so that the kidneys will increase the urine production.
The digestion of food particles
The secretion of hormone
The production of urine
The increase in brain capacity
What will happen if drink less water and sweat a lot?
The water content in our body will decrease
Less urine will be produced
Our body will get tired
The body temperature will be decreased
The decrease in water level in our body is detected by the ...............and the ....................occur to stimulate the .................... so that the kidneys will.....................the urine production.
Brain
secretion of hormone
increase
reduce
corrective mechanism
When kidneys reduce the production of urine....
very less and concentrated urine will be produced
very less odour and diluted urine will be produced
large amount and colourless urine will be produced
very smelly and greenish urine will be produced
what are the causes of an increase of water content in our body?
drink a lot of water
drink a lot of apple juice
exercise excessively
no exercise at all
What are the effects of reduced water intake and excessive exercise at the same time?
less amount of urine is produced
urine will have a strong odour
concentrated urine will be produced
not feeling thirsty
bloated stomach ache
What are the importance of homeostasis in living organisms?
To regulate body temperature in living organisms
To prevent death
To maintain the water content in the living organisms
To save the nature from extinction
