🌟 Class
7 Science Curiosity – Chapter 9 Solutions
🫀 Life
Processes in Animals | Amresh Academy
✍️ 🔹 Very
Short Answer Type Questions
What are life processes?
What is the role of saliva in digestion?
- Breaks
starch into sugar 🍞➡️🍬
- Moistens
food for easy swallowing
Name the organ where absorption of digested food
occurs.
What is egestion?
What is the function of alveoli in lungs?
🧠 🔹 Short
Answer Type Questions
What is rumination? Name animals that ruminate.
What happens to the food in the stomach during
digestion?
- Food
is churned
- Mixed
with digestive juices
- Proteins
broken down
- Bacteria
destroyed 🦠
What does the liver secrete and what is its
function?
What is the difference between breathing and
respiration?
What happens to undigested food in the large
intestine?
📖 🔹
Descriptive Answer Type Questions
Explain the process of digestion in the mouth.
- Teeth
→
crush food
- Saliva
→
breaks starch
- Tongue
→
mixes & pushes food
How is the small intestine adapted for
absorption?
- Has
villi (finger-like projections)
- Large surface area➡️ Nutrients absorbed into blood
How does a bird digest food without teeth?
- Uses
gizzard
- Food crushed with stones➡️ Helps digestion
Describe the human respiratory system briefly.
- Air
enters through nose
- Passes
windpipe
- Reaches
lungs
- Alveoli
→
gas exchange
What is the role of the diaphragm in breathing?
🚀 🔹
Exploring Questions
Why do we feel a sweet taste when we chew
chapati for long?
Why is fibre important for a healthy digestive
system?
- Helps
bowel movement
- Prevents
constipation
- Supports
digestion
How is gas exchange affected during COVID-19 as
per the chapter?
Why do fish need gills and humans have lungs?
How do frogs breathe in different stages of
life?
- Tadpole
→
gills
- Adult
→
lungs + skin
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