331316
Assertion : Cyanobacteria are photosynthetic autotrophs Reason : Cyanobacteria have chlorophyll a and b similar to green plants
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Cyanobacteria, also called as blue-green algae are photosynthetic autotrophs, they have chlorophyll similar to green plants. In addition to chlorophyll it also contains phycobilin and carotenoids.
BIOXI02: BIOLOGICAL CLASSIFICATION
331317
Assertion : Mycoplasma are pathogenic in plants and animals. Reason : Mycoplasma lack cell wall and can survive without oxygen .
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Mycoplasma are the simplest and freeliving prokaryotes, they can survive without oxygen. Mycoplasma live as saphrophytes but majority are parasites in plants and animals. They are parasitic due to the inability to produce required growth factors.
BIOXI02: BIOLOGICAL CLASSIFICATION
331318
A bacterium is capable of withstanding extreme heat, dryness and toxic chemicals. This indicates that it is probably able to form:
1 Endospores
2 Endotoxins
3 Endogenous buds
4 A thick peptidoglycan wall
Explanation:
The vegetative cells of some bacteria, such as Bacillus and Clostridium, produce resting stages called endospores. They are formed within cell. They contain very little water and are highly resistant to heat, drying, acids, bases, certain disinfectants and even radiation.
KCET - 2009
BIOXI02: BIOLOGICAL CLASSIFICATION
331319
Which of the following components provide sticky character to the bacterial cell ?
1 Nuclear membrane
2 Plasma membrane
3 Glycocalyx
4 Cell wall
Explanation:
In bacteria, cell envelope consists of 3 layered structure i.e., outermost glycocalyx, middle cell wall and inner plasma membrane. Glycocalyx is considered a capsule when thepolysaccharides are more firmly attached to the cell wall. Capsules have a gummy, sticky consistency and provide protection as well as adhesion to solid surfaces and to nutrients in the environment.
331316
Assertion : Cyanobacteria are photosynthetic autotrophs Reason : Cyanobacteria have chlorophyll a and b similar to green plants
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Cyanobacteria, also called as blue-green algae are photosynthetic autotrophs, they have chlorophyll similar to green plants. In addition to chlorophyll it also contains phycobilin and carotenoids.
BIOXI02: BIOLOGICAL CLASSIFICATION
331317
Assertion : Mycoplasma are pathogenic in plants and animals. Reason : Mycoplasma lack cell wall and can survive without oxygen .
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Mycoplasma are the simplest and freeliving prokaryotes, they can survive without oxygen. Mycoplasma live as saphrophytes but majority are parasites in plants and animals. They are parasitic due to the inability to produce required growth factors.
BIOXI02: BIOLOGICAL CLASSIFICATION
331318
A bacterium is capable of withstanding extreme heat, dryness and toxic chemicals. This indicates that it is probably able to form:
1 Endospores
2 Endotoxins
3 Endogenous buds
4 A thick peptidoglycan wall
Explanation:
The vegetative cells of some bacteria, such as Bacillus and Clostridium, produce resting stages called endospores. They are formed within cell. They contain very little water and are highly resistant to heat, drying, acids, bases, certain disinfectants and even radiation.
KCET - 2009
BIOXI02: BIOLOGICAL CLASSIFICATION
331319
Which of the following components provide sticky character to the bacterial cell ?
1 Nuclear membrane
2 Plasma membrane
3 Glycocalyx
4 Cell wall
Explanation:
In bacteria, cell envelope consists of 3 layered structure i.e., outermost glycocalyx, middle cell wall and inner plasma membrane. Glycocalyx is considered a capsule when thepolysaccharides are more firmly attached to the cell wall. Capsules have a gummy, sticky consistency and provide protection as well as adhesion to solid surfaces and to nutrients in the environment.
331316
Assertion : Cyanobacteria are photosynthetic autotrophs Reason : Cyanobacteria have chlorophyll a and b similar to green plants
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Cyanobacteria, also called as blue-green algae are photosynthetic autotrophs, they have chlorophyll similar to green plants. In addition to chlorophyll it also contains phycobilin and carotenoids.
BIOXI02: BIOLOGICAL CLASSIFICATION
331317
Assertion : Mycoplasma are pathogenic in plants and animals. Reason : Mycoplasma lack cell wall and can survive without oxygen .
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Mycoplasma are the simplest and freeliving prokaryotes, they can survive without oxygen. Mycoplasma live as saphrophytes but majority are parasites in plants and animals. They are parasitic due to the inability to produce required growth factors.
BIOXI02: BIOLOGICAL CLASSIFICATION
331318
A bacterium is capable of withstanding extreme heat, dryness and toxic chemicals. This indicates that it is probably able to form:
1 Endospores
2 Endotoxins
3 Endogenous buds
4 A thick peptidoglycan wall
Explanation:
The vegetative cells of some bacteria, such as Bacillus and Clostridium, produce resting stages called endospores. They are formed within cell. They contain very little water and are highly resistant to heat, drying, acids, bases, certain disinfectants and even radiation.
KCET - 2009
BIOXI02: BIOLOGICAL CLASSIFICATION
331319
Which of the following components provide sticky character to the bacterial cell ?
1 Nuclear membrane
2 Plasma membrane
3 Glycocalyx
4 Cell wall
Explanation:
In bacteria, cell envelope consists of 3 layered structure i.e., outermost glycocalyx, middle cell wall and inner plasma membrane. Glycocalyx is considered a capsule when thepolysaccharides are more firmly attached to the cell wall. Capsules have a gummy, sticky consistency and provide protection as well as adhesion to solid surfaces and to nutrients in the environment.
331316
Assertion : Cyanobacteria are photosynthetic autotrophs Reason : Cyanobacteria have chlorophyll a and b similar to green plants
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Cyanobacteria, also called as blue-green algae are photosynthetic autotrophs, they have chlorophyll similar to green plants. In addition to chlorophyll it also contains phycobilin and carotenoids.
BIOXI02: BIOLOGICAL CLASSIFICATION
331317
Assertion : Mycoplasma are pathogenic in plants and animals. Reason : Mycoplasma lack cell wall and can survive without oxygen .
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Mycoplasma are the simplest and freeliving prokaryotes, they can survive without oxygen. Mycoplasma live as saphrophytes but majority are parasites in plants and animals. They are parasitic due to the inability to produce required growth factors.
BIOXI02: BIOLOGICAL CLASSIFICATION
331318
A bacterium is capable of withstanding extreme heat, dryness and toxic chemicals. This indicates that it is probably able to form:
1 Endospores
2 Endotoxins
3 Endogenous buds
4 A thick peptidoglycan wall
Explanation:
The vegetative cells of some bacteria, such as Bacillus and Clostridium, produce resting stages called endospores. They are formed within cell. They contain very little water and are highly resistant to heat, drying, acids, bases, certain disinfectants and even radiation.
KCET - 2009
BIOXI02: BIOLOGICAL CLASSIFICATION
331319
Which of the following components provide sticky character to the bacterial cell ?
1 Nuclear membrane
2 Plasma membrane
3 Glycocalyx
4 Cell wall
Explanation:
In bacteria, cell envelope consists of 3 layered structure i.e., outermost glycocalyx, middle cell wall and inner plasma membrane. Glycocalyx is considered a capsule when thepolysaccharides are more firmly attached to the cell wall. Capsules have a gummy, sticky consistency and provide protection as well as adhesion to solid surfaces and to nutrients in the environment.
