Plant Kingdom MCQ Quiz in मल्याळम - Objective Question with Answer for Plant Kingdom - സൗജന്യ PDF ഡൗൺലോഡ് ചെയ്യുക

The Correct answer is:  D and E

Concept:

• Plants have different types of roots.
• Some store food, some breathe some hang from the branches.
• Not all roots are underground.

Key PointsAbout Banyan tree roots:

• A banyan tree has three types of roots.
• Banyan trees are characterized by aerial roots, that hang from the branches.
• These roots mature into thick, woody trunks, called prop roots.
• Prop roots can become indistinguishable from the primary trunk with age.
• Like any other tree, in addition, the banyan tree has deep underground roots.
• A banyan tree is believed to be the world's biggest tree in terms of the area it covers. 
• It is the national tree of India.

Thus, 

A. Banyan tree has three types of roots: Correct

B. It has hanging roots that look like pillars: Correct

C. Hanging roots provide support to the big banyan tree: Correct

D. It has roots that grow above the soil that helps in respiration: Incorrect 

E. Underground roots of banyan tree help to absorb water and store food: Incorrect

The correct option is Transpiration.

Key Points

Transpiration

• It is a process in which excess water is lost in the form of vapors from the aerial parts of the plant.
• Mainly through the stomata of leaves. 
• Stomatal openings are necessary to admit carbon dioxide to the leaf interior and to allow oxygen to escape during photosynthesis, hence transpiration is generally considered to be merely an unavoidable phenomenon that accompanies the real functions of the stomates.
• Excessive transpiration can be extremely injurious to a plant.
• When water loss exceeds water intake, it can retard the plant’s growth and ultimately lead to death by dehydration.
• The stomata present in the leaves are responsible for the uptake of carbon dioxide and limit the loss of water due to evaporation.

Loss of water in the form of vapour from the aerial parts of the plant is called Transpiration.

Important Points

Photosynthesis: 

• The leaves have a green pigment called chlorophyll.
• It helps leaves to capture the energy of the sunlight.
• This energy is used to synthesis food from carbon dioxide and water. 
• Since the synthesis of food occurs in the presence of sunlight, it is called photosynthesis.
• In the presence of sunlight Carbon dioxide + water → Carbohydrate + oxygen.
• Some plants, green algae, and cyanobacteria can perform photosynthesis.
• The process of photosynthesis is commonly written as

• 6CO2 + 6H2O + Sun-Light → C6H12O6 + 6O2

Additional Information

• There are many factors that affect the rate of transpiration such as light, humidity, temperature wind.

Amount of sunlight:

• As the Light increases, the rate of transpiration increases.
• This is because with the increase in lights, the rate of water absorption, and the resulting turgidity of the two guard cells increases.
• This forms the boundary of each stoma and brings about the opening of the stomates, which increases the transpiration rate.

Relative humidity:

• As the relative humidity of the air around the plant rises, the transpiration rate falls.
• Water is easily evaporated into dryer air than into more saturated air.
• The atmosphere has more moisture when the relative humidity is high.
• This reduces the driving factor for transpiration.
• Lower levels of relative humidity correspond to less moisture content in the atmosphere and hence higher the driving factor for transpiration.

Temperature:

• Transpiration rates increase with the increase in temperature.
• This happens especially during the growing season when the air is warmer due to stronger sunlight.

The correct answer is Barack Obama.

Key Points

• Dreams from My Father: A Story of Race and Inheritance (1995) is a memoir by Barack Obama that explores the events of his early years in Honolulu and Chicago until his entry into Harvard Law School in 1988.
• Obama originally published his memoir in 1995.
• Obama won the U.S. Senate Democratic primary victory in Illinois in 2004.
• He gave the keynote address at the 2004 Democratic National Convention (DNC) and won the US Senate seat in the fall. the book was re-published that year. 

Additional Information

• Donald Trump
  • The Art of the Deal is a 1987 book credited to Donald J. Trump and journalist Tony Schwartz. Part memoir and part business advice book.
• Nelson Mandela
  • Long Walk to Freedom is an autobiography credited to South African President Nelson Mandela. 
• Tony Blair
  • A Journey is a memoir by Tony Blair of his tenure as Prime Minister of the United Kingdom.
  • Published in the UK on 1 September 2010.
• Barack Obama
  • Obama was born in Honolulu, Hawaii.
  • He married Michelle Robinson in 1992. They have two daughters.
  • Obama was inaugurated in January 2009 as the first African American mixed-race president.

Concept:

• Khejedli or Khejarli is a village in the Jodhpur district of Rajasthan. 
• The name of the town is derived from Khejadi trees that were once abundant in the village.

Explanation:

About Khejadi tree:

• Its scientific name is Prosopis cineraria.
• It is known by different names across India.
• Example: Shami in Maharastra & Uttar Pradesh, Jammi in Telangana, Khijro in Gujarat, Khejri in Rajasthan, Janti in Haryana, and Jand in Punjab.
• It is a species of flowering tree in the pea family, Fabaceae.
• The Khejadi tree is found mainly in desert areas.
• It can grow without much water.
• Its bark is used for making medicines.
• People cook and eat its fruits.
• Its wood is such that it is not affected by insects.
• Animals in the area eat the leaves of the Khejadi.

​Thus, the Khejri tree is found majorly in the state of Rajasthan. 

Additional Information

About the Khejadli village: 

• In the Khejadli village, no tree is cut and no animal is harmed. 
• The people of Khejadli village take the responsibility of protecting the Khejadi trees upon themselves as a part of their culture.
• The people of Khejadli village are well known for their revolt against the king, who has ordered the felling down of these Khejadi trees for wood.
• The people hugged the trees and did not let them go and died saving them.
• Even today, the people of this area, called Bishnois, continue to protect plants and animals.
• Even though in the middle of the desert, this area is green and animals roam freely without fear.

Concept:

• Carnivorous plants obtain the essential nutrients from the heterotrophs.
• These plants trap insects and obtain the nutrients which they do not get from the soil as they grow in nitrogen-deficient soils.
• They are not called heterotrophs or consumers, because they only derive nutrients from insects.
• These plants get energy from the process of photosynthesis.
• Hence they are both producers and carnivores.

Key Points

• The pitcher plant is an insectivorous plant
• It has a Pitcher-like structure that is the modified part of the leaf.
• The apex of the leaf forms a lid that can open and close the mouth of the pitcher.
• Inside the pitcher, there are hairs that are directed downwards.
• When an insect lands in the pitcher, the lid closes and the trapped insect gets entangled in the hair.
• The insect is digested by the digestive juices secreted in the pitcher.
• It can trap and eat frogs, insects and even mice.
• It is found in Australia, Indonesia and Meghalaya in India.
• It has a pitcher-like shape and the mouth is covered by a leaf.
• It has a special smell that attracts insects to it, which get trapped and can't get out.

Explanation:

A. It grows mostly where Nitrogen is high. - False

B. They are both producers and carnivorous. - True

C. They can trap insects and frogs. - True

D. They are found all over the globe - False

​

Additional Information

The Correct answer is:  Meghalaya 

Concept:

• Carnivorous plants obtain the essential nutrients from the heterotrophs.
• These plants trap insects and obtain the nutrients which they do not get from the soil.
• They are not called heterotrophs or consumers, because they only derive nutrients from insects.
• These plants get energy from the process of photosynthesis.
• Hence they are both producers and carnivores.

Key Points

Nepenthes is a plant that:

• It can trap and eat frogs, insects and even mice.

• It is found in Australia, Indonesia and Meghalaya in India.

• It has a pitcher-like shape and the mouth is covered by a leaf.

• It has a special smell that attracts insects to it, which get trapped and can't get out.

Thus, the correct answer is Meghalaya.

Additional Information

The correct answer is Ovary.

Explanation:

• After fertilisation, the flower develops into a fruit. 
• Fruits can be dry (mustard, groundnut) or fleshy (orange, mango).
• A mature ovule and seed are found in the dry and fleshy part of a fruit.
• The flower's female reproductive part matures into a true fruit.
• A true fruit is one that develops from only a fully matured and ripened ovary.
• The ovule, which is located inside the ovary, produces the seeds of fruit.
• Some examples of true fruit are Watermelon, mango, lemon, kiwi, blueberry, plums etc.

Additional Information 

Fruits that develop from ovary and the thalamus or other part of the flower are known as false fruits.
Example: apple, strawberry

The Correct answer is: Mustard

Concept:

• People eat different types of fruits and vegetables.
• Different parts or all parts of various plants can be eaten as food.
• In different places, different parts of a plant are eaten.

Key Points

• Coconut:
  • The only edible part of the coconut tree is its fruit.
  • Coconuts can be eaten either raw or cooked.
  • They are rich in vitamins, minerals, and powerful antioxidants. 
• Cabbage:
  • The edible part of the cabbage plant is its bud.
  • The bud of the cabbage plant is the actual cabbage that we buy from the market.
  • Cabbage can be eaten raw in salads or cooked into various dishes. 
• Mustard:
  • The edible part of the mustard plant is its leaves and seeds.
  • The leaves are cooked and eaten as a vegetable.
  • The mustard seeds are used as species.
  • The seeds are also pressed to make mustard oil.
• Spinach:
  • ​The edible part of spinach is its leaves.
  • It can be eaten raw in salads or can be cooked as greens.

Thus, mustard is a plant whose leaves are used as vegetables, and whose seeds are used to produce oil. 

Concept:

Flower:

• A bloom or blossom is another name for a flower.
• It is the part of flowering plants that houses the reproductive system.

Key Points

Flowers in medicines:

• Flowers are used to making many medicines.
• Rose water is used in our houses as medicine or a home remedy for dry skin.
• Mix equal parts of rose water and glycerine.
• Fill this in a bottle, and add a few drops of lemon juice.
• In winter use this mixture on the skin for the prevention of dry skin.

Colours from flowers:

• Colours are made from many flowers like marigolds, Zenia, etc.
• These colours can be used to dye cloth.

Flower for decoration:

• Marigolds, also referred to as "herbs of the sun," represent love, creativity, brightness, and positivity.
• Consequently, marigolds in both orange and yellow are used as decorations.​

Flowers for eating:

• Flowers can be eaten.
• Many flowers are cooked as vegetables.
• In Uttar Pradesh, people enjoy eating a vegetable made of kachnar flowers.
• In Kerala, people cook vegetables made of banana flowers.
• In Maharashtra, people love pakoras made of sahjan flowers.

Thus,

A. Orchid flower is used for medicinal purposes- Incorrect

B. Zenia can be used to dye cloth-Correct 

C. Rose water can be used as a home remedy for dry skin-Correct

D. In Kerala people enjoy eating vegetables made out of kachnar flowers-Incorrect

E. Flowers like marigolds can be used for decoration-Correct. 

So, the correct options are A and D.

aloe vera

Concept:

Xerophyte:

• These are plants growing in arid conditions throughout the year.
• Xerophyte plants mainly grow in deserts (psammophytes), on rock (lithophytes) or in alpine plants growing above 14000 feet altitude.
• Xerophyte plants lose very little water through transpiration.
• The leaves in these plants are either absent, very small, or are in the form of spines.
• This helps in reducing the loss of water from the leaves through transpiration.
• Examples of some xerophytes plants are cacti, pineapple, aloe vera etc.

Key Points

Aloe vera:

• Aloe vera is a perennial cactus-like evergreen plant.
• One of the important adaptations is to survive in hot dry areas.
• It is succulent in nature. 
• This xerophytic plant is mainly found in the dry regions of Asia, Europe, Africa and America.

​Thus, an example of a xerophyte is aloe vera.

Additional InformationHydrophytes:

•  These are aquatic plants growing in fresh to marine water. 
• Examples - lotus, hydrilla, and white lily.

Mesophytes:

• These are plants growing in soils with optimum soil water conditions prevailing for a major part of the year.
• Examples - corn (maize), cucurbits, privet, lilac, goldenrod, clover, neem, mango etc.