12th Grade > Biology
THE LIVING WORLD MCQs
The Living World, Living Organisms And Their Surroundings, Diversity In Living Organisms
Total Questions : 114
| Page 3 of 12 pages
Answer: Option B. -> Respiration
:
B
Respiration is the process by which the glucose in the food is broken down in the presence of oxygen to produce energy. This energy is utilised by our body for its survival.
:
B
Respiration is the process by which the glucose in the food is broken down in the presence of oxygen to produce energy. This energy is utilised by our body for its survival.
Answer: Option D. -> reproduction
:
D
Living organisms produce more of their kind through a process called reproduction. Reproduction is important for the survival of all living beings. Without a mechanism for reproduction, life would come to an end.
:
D
Living organisms produce more of their kind through a process called reproduction. Reproduction is important for the survival of all living beings. Without a mechanism for reproduction, life would come to an end.
Answer: Option D. -> All living things
:
D
Any thing that is classified as a living being is reffered to as an organism. This includes plants, animals, birds, insects, etc.
:
D
Any thing that is classified as a living being is reffered to as an organism. This includes plants, animals, birds, insects, etc.
Answer: Option C. -> Mammalia
:
C
All mammals have hair or fur. Mammals are the only animals with true hair. Hair is made up of dead cells which contains a substance called keratin. Example: Fingernails are made of keratin. Even mammals that swim under the water (like dolphins and whales) have fine hair around their snout. Hair like structures on a fly or a spider actually contains living cells. That means if you cut a spider's hair it would hurt.
:
C
All mammals have hair or fur. Mammals are the only animals with true hair. Hair is made up of dead cells which contains a substance called keratin. Example: Fingernails are made of keratin. Even mammals that swim under the water (like dolphins and whales) have fine hair around their snout. Hair like structures on a fly or a spider actually contains living cells. That means if you cut a spider's hair it would hurt.
Answer: Option C. -> Platyhelminthes
:
C
Organisms belonging to the phylum Platyhelminthes have dorsoventrally flattened body. Hence, they are commonly known as flatworms. Organisms like planaria, liver fluke, etc., belong to this phylum.
:
C
Organisms belonging to the phylum Platyhelminthes have dorsoventrally flattened body. Hence, they are commonly known as flatworms. Organisms like planaria, liver fluke, etc., belong to this phylum.
Answer: Option B. -> False
:
B
Someorganisms belonging to kingdom Monera have autotrophic mode of nutrition, while others are heterotrophic. Cyanobacteria which belongs to kingdom Monera arecapable of photosynthesis and are autotrophic. At the same time, there are certain type of bacteria which are heterotrophic and belongs to kingdom Monera.
:
B
Someorganisms belonging to kingdom Monera have autotrophic mode of nutrition, while others are heterotrophic. Cyanobacteria which belongs to kingdom Monera arecapable of photosynthesis and are autotrophic. At the same time, there are certain type of bacteria which are heterotrophic and belongs to kingdom Monera.
Answer: Option A. -> chlorophyll
:
A
Chlorophyll is a green-coloured pigment present in the chloroplasts of plant cells. It helps in absorbing light energy, which is highly crucial for photosynthesis.
:
A
Chlorophyll is a green-coloured pigment present in the chloroplasts of plant cells. It helps in absorbing light energy, which is highly crucial for photosynthesis.
Answer: Option A. -> Monera
:
A
Cyanobacteria or blue-green algae are a group of prokaryotes, which have chlorophylland can carry out their own photosynthesis. They belong to kingdom Monera. Monera consists of organisms that do not have a defined nucleus or organelles.
:
A
Cyanobacteria or blue-green algae are a group of prokaryotes, which have chlorophylland can carry out their own photosynthesis. They belong to kingdom Monera. Monera consists of organisms that do not have a defined nucleus or organelles.
Answer: Option A. -> True
:
A
Thallophyta isthe most primitiveplants. They have an undifferentiated body and thay lack specialised organs and conducting tissues. They mostly comprise soft tissues and lack mechanical tissues.
:
A
Thallophyta isthe most primitiveplants. They have an undifferentiated body and thay lack specialised organs and conducting tissues. They mostly comprise soft tissues and lack mechanical tissues.
Answer: Option C. -> Chlorella
:
C
Algae are aquatic organisms. They contain chlorophyll and can prepare their food by photosynthesis.Chlorella andChlamydomonasare few examples of unicellular algae.
Penicillium, Aspergillus, Candida are all examples of fungi.
:
C
Algae are aquatic organisms. They contain chlorophyll and can prepare their food by photosynthesis.Chlorella andChlamydomonasare few examples of unicellular algae.
Penicillium, Aspergillus, Candida are all examples of fungi.
Latest Videos
Latest Test Papers
Login With Google
Old way of Login
Login With Email