On this Page we have given West Bengal Class 8 English Medium Science Solution Chapter 11 Plant Kingdom and Environment Around Us Question and Answer for our Students of West bengal Class 8 English Medium. Hope this following Question Answer will help our Students.
West Bengal Class 8 | Science | Plant Kingdom and Environment Around Us
Q,(1) Short answer questions.
(1) Describe about the stem of bamboo tree ?
→Stem are along pipe line and with less branches.
(2) Mention the name of bamboo species growing along the coastal region of Bay of Bengal ?
→ Melo annabamboos ides
(3) Write one use of bamboo plant ?
→Different delicious dishes made by people in Asia from the young
stems of bamboo tree.
(4) What is water hyacinth ?
→ It is free floating perennial plant.
(5) How long water hyacinth lived ?
→Up to 24 years.
(6) What is the quality of water hyacinth ?
→The number becomes double in a very short period due to high rate of reproduction.
(7) What happens when water hyacinth reproduction cannot control ?
→If not controlled , it will cover up the water of pond and lakes. Fish and turtles tend to death. The flow of water gradually decreases.
(8) Write the uses of water hyacinth?
→
- The stems of water hyacinth used for embroidery and their thread is used in garment industry in many countries.
- It is good source of bio gas as it contains large amount of nitrogen.
- It has ability to purify dirty polluted water by observing the harmful metals like cadmium chromium Mercury etc.
(9) What is Sal ?
→It is perennial Woody and dicotyledonous tree.
(10) Write two uses of Sal tree ?
→
- The wood of this tree used for making furniture windows etc
- The leaf of this plants used for making plates bowls etc.
(11) Where is Tannin used ?
→
Tannin used in leather industry.
(12) Where sundri trees can grow ?
→ In sweet water of saline areas in Sundarbans.
(13) Describe the fruit of sundri ?
→The fruit is egg like but slightly elongated and brown in colour.
(14) Write two uses of spices?
→
- Adding taste to the food.
- Use as preservative as there is no refrigerator at that time.
(15) Write the name of the spice obtaining from bark of the tree ?
→ Cinnamon
(16) Write the name of the spice obtaining as a bud?
→Clove
(17) Enlist the seeds used as spices.?
→ Ajowan, fennel seeds , coriander seeds , mustard seeds , poppy seeds
(18) Which is responsible for hot taste of black pepper ?
→ Peperino
(19) Write uses of black pepper?
→
- Used for tooth decay , bleeding gums , pain in gum , cough
- Used as preservative for meat .
(20) Write the two types of cinnamon ?
→
- Thick bark cinnamon
- Thin bark cinnamon
(21) Write uses of cinnamon ?
→
- It has its own sweet Aroma and used for cooking.
- Volatile oil made from cinnamon gives relief in arthritic pain.
(22) How turmeric is prepared ?
→Turmeric is prepared from underground yellow bulb of the turmeric plant.
(23) Write the uses of turmeric ?
→
- In cooking
- To give colour to the ghee oil etc
- As a medicine
(24) Name the compound present in turmeric helps to kill bacteria ?
→ Curcumin
(25) What are the types of cardamom ?
→
- Greater cardamom
- Lesser cardamom
(26) Name the two food dishes having cardamom in it ?
→
- Kheer
- Suji halwa
(27) Write two uses of cardamom ?
→
- Used as a mouth freshener
- Used in stomach related problems.
(28) Write to uses of Ginger ?
→
- Used in some stomach related problems.
- Used in cooking
- Used in some problems related to gas cough asthma.
(29) Which compound in the garlic have anti microbial properties ?
→ Allicin in the garlic have anti-microbial properties.
(30) Write to uses of garlic ?
→
- Used in Heart and vessels related problems.
- It has some antiseptic properties.
- Used in food digestion by stimulating the stomach.
(31) How many medicinal plants found in our country ?
→Around 350 species of medicinal plants found in our country.
(32) Write to uses of neem ?
→
- Juice of neem leaves is very effective in diabetes.
- Neem seeds are effective in viral epidemic and arthritis.
(33) Write the uses of Bael ?
→
- Juice of Bael fruit takes care of intestine of diarrhea patient.
- Bael is useful in chronic stomach trouble.
(34) Write the uses of emblica tree ?
→
- It contains use amount of vitamin c and used in swelling of gum.
- Dry fruit of this tree used in dysentery and stomach upset.
(35) What is triphala ?
→ It is a Type of medicine plant having Combination of emblica , haritaki , bahera without seeds .
(36) Write two uses of Triphala ?
→
- Used to clean Alimentary canal
- Used as blood cleanser.
(37) Write to uses of Catharanthus ?
→
- Used in dysentery and for hemorrhage
- The leaf of this plant used as a medicine for diabetes.
(38) Which alkaloid is present in Catharanthus ?
→ The alkaloid called rebasing is present in the root of this plant and it helps to remove the obstacles in the circulation of the blood in the brain.
(39) Name two alkaloids present in Catharanthus used to cure blood cancer?
→ Vincristine and Vinblastine
(40) Write the two uses of mint ?
→
- Mint sherbet is used for digestive and stomach problems.
- Used as Anti-microbial agent and helps to control the bad breath.
Also See: Biodiversity , Environmental Crisis, and Conservation of Endangered Animals Chapter Question Answer