Homeostasis Heroes
Digestion & Circulation Connection
Respiration & Excretion Alliance
Control and Coordination
Feedback Mechanisms Masters
100
What does “homeostasis” mean?
The ability to maintain stable internal conditions when external conditions change.
100
Main function of the small intestine ?
To break down food and absorb nutrients.
100
Which organ brings oxygen into the body?
The lungs.
100
What kind of cells control the heartbeat rate?
Pacemaker cells in the heart.
100
Define negative feedback.
A system that stops a response to maintain balance (e.g., feeling full after eating).
200
Which three systems work together to regulate body temperature?
Endocrine, nervous, and muscular systems.
200
Which system helps the small intestine move food along?
The muscular system (peristalsis).
200
Why does the body need oxygen?
To release energy from nutrients in cells.
200
Why does the nervous system speed up heartbeat during exercise?
To supply more oxygen and energy to muscles.
200
Define positive feedback.
A system that increases a response (e.g., blood clotting).
300
Why do you shiver when you’re cold?
Muscles contract to generate heat and raise body temperature.
300
Name the tiny fingerlike projections that absorb nutrients.
Villi.
300
How does the excretory system remove liquid wastes?
Through the circulatory system to the kidneys and skin (sweating).
300
How do the nervous and endocrine systems differ in response time?
Nervous = fast electrical signals; Endocrine = slow chemical (hormone) signals.
300
How do feedback systems help homeostasis?
They turn signals on and off to keep internal conditions stable.
400
How do the digestive and muscular systems help maintain energy homeostasis?
Muscles move food through digestion; nutrients from food provide energy for muscles.
400
How do villi and the circulatory system work together?
Blood vessels inside villi absorb nutrients and transport them through the body.
400
How do the respiratory and circulatory systems work together?
Respiratory brings in oxygen; circulatory transports it to cells and removes CO₂.
400
What is a reflex?
An automatic, fast response without brain processing (e.g., pulling hand from hot object).
400
Give one daily life example of positive feedback.
Platelets forming a blood clot to stop bleeding.
500
Predict what would happen if the muscular system could not respond to signals from the nervous system.
The body would lose movement, breathing, and circulation ability → no survival.
500
Why is the interaction between the digestive and circulatory systems essential for homeostasis?
They ensure cells receive nutrients and energy to function properly.
500
If the excretory system failed, what would happen to the circulatory and respiratory systems?
Waste builds up → toxic blood, acidic body, heart strain, breathing difficulty.
500
What is insulin and its purpose?
A hormone from the pancreas that controls blood sugar levels and maintains energy homeostasis.
500
Give one daily life example of negative feedback.
Temperature control — shivering to warm up or sweating to cool down.
600
During long fasting hours in the UAE in Ramadan, which two systems work together to balance energy levels?
The digestive and endocrine systems — they control blood sugar and release stored energy when food intake is low.
600
How does studying homeostasis help athletes in UAE sports?
By monitoring hydration and temperature to avoid heat exhaustion.
600
How do desert animals’ body systems inspire UAE innovations?
Scientists study camels’ homeostasis (water retention & temperature regulation) to design cooling systems and survival gear for desert workers.
600
How is AI used in UAE healthcare to monitor homeostasis in patients?
AI-powered systems track heart rate, oxygen, and body temperature, alerting doctors to changes before an emergency.
600
How does sweating help people stay safe during hot UAE summers?
Sweating releases water from the skin, cooling the body — an example of homeostasis keeping temperature stable.