Assertion & Reason Test: Structural Organisation in Animals - Grade 11 MCQ

Directions : In the following question, the Assertions (A) and Reason (R) have been put forward. Read both the statements and choose the correct option from the following.

Assertion : Ciliated epithelium lines the bronchioles.

Reason : The ciliary movement maintains the flow of mucus or liquid or suspended bodies constantly in one direction.

Directions : In the following question, the Assertions (A) and Reason (R) have been put forward. Read both the statements and choose the correct option from the following.

Assertion : Cardiac muscles is a type of voluntary muscles found in heart.

Reason : Cardiac muscles work with out resting under the will of animal.

Directions : In the following question, the Assertions (A) and Reason (R) have been put forward. Read both the statements and choose the correct option from the following.

Assertion : Blood is a fluid connective tissue.

Reason : It helps in transportation of various substances between organs.

Directions : In the following question, the Assertions (A) and Reason (R) have been put forward. Read both the statements and choose the correct option from the following.

Assertion : Cardiac muscle is striated. It has intercalated discs between its fibres.

Reason : It provides rhythmic contraction to the heart.

In multicellular organism, a group of similar cells along with intercellular substances perform a specific function. Such organization is called tissue. Epithelial tissue provides covering or lining for some part of the body. Cells are compactly packed without intercellular space. It may be simple, compound, cuboidal or of columnar type. The connective tissues.
They are most abundant and widely distributed tissues which link and support the other tissues. All connective tissue except blood, secretes fibres of structural protein called collagen or elastin to provide elasticity an flexibility. The cells or fibres of the connective tissue may be loosely or arranged or compactly packed. Cartilage, bones and blood are specialized connective tissue. In muscle tissue muscle is made up of long cylindrical fibres arranged parallel to each other. Fibres are composed of fine fibrils called myofibrils. Muscle fibres contract and relax in response to stimulation. The unit of neural system is neuron. Neuroglial cell protect and supports the neuron. When neuron gets stimulated, electrical impulses are generated that travel along the plasma membrane (axon). The tissues organize to form organs which in turn associate to form organ system in multicellular organisms.

Q. Crypts of Lieberkuhn are:

In multicellular organism, a group of similar cells along with intercellular substances perform a specific function. Such organization is called tissue. Epithelial tissue provides covering or lining for some part of the body. Cells are compactly packed without intercellular space. It may be simple, compound, cuboidal or of columnar type. The connective tissues.
They are most abundant and widely distributed tissues which link and support the other tissues. All connective tissue except blood, secretes fibres of structural protein called collagen or elastin to provide elasticity an flexibility. The cells or fibres of the connective tissue may be loosely or arranged or compactly packed. Cartilage, bones and blood are specialized connective tissue. In muscle tissue muscle is made up of long cylindrical fibres arranged parallel to each other. Fibres are composed of fine fibrils called myofibrils. Muscle fibres contract and relax in response to stimulation. The unit of neural system is neuron. Neuroglial cell protect and supports the neuron. When neuron gets stimulated, electrical impulses are generated that travel along the plasma membrane (axon). The tissues organize to form organs which in turn associate to form organ system in multicellular organisms.

Q. Transitional epithelium is present:

In multicellular organism, a group of similar cells along with intercellular substances perform a specific function. Such organization is called tissue. Epithelial tissue provides covering or lining for some part of the body. Cells are compactly packed without intercellular space. It may be simple, compound, cuboidal or of columnar type. The connective tissues.
They are most abundant and widely distributed tissues which link and support the other tissues. All connective tissue except blood, secretes fibres of structural protein called collagen or elastin to provide elasticity an flexibility. The cells or fibres of the connective tissue may be loosely or arranged or compactly packed. Cartilage, bones and blood are specialized connective tissue. In muscle tissue muscle is made up of long cylindrical fibres arranged parallel to each other. Fibres are composed of fine fibrils called myofibrils. Muscle fibres contract and relax in response to stimulation. The unit of neural system is neuron. Neuroglial cell protect and supports the neuron. When neuron gets stimulated, electrical impulses are generated that travel along the plasma membrane (axon). The tissues organize to form organs which in turn associate to form organ system in multicellular organisms.

Q. Which tissue are mainly present in the inner surface of bronchioles?

In multicellular organism, a group of similar cells along with intercellular substances perform a specific function. Such organization is called tissue. Epithelial tissue provides covering or lining for some part of the body. Cells are compactly packed without intercellular space. It may be simple, compound, cuboidal or of columnar type. The connective tissues.
They are most abundant and widely distributed tissues which link and support the other tissues. All connective tissue except blood, secretes fibres of structural protein called collagen or elastin to provide elasticity an flexibility. The cells or fibres of the connective tissue may be loosely or arranged or compactly packed. Cartilage, bones and blood are specialized connective tissue. In muscle tissue muscle is made up of long cylindrical fibres arranged parallel to each other. Fibres are composed of fine fibrils called myofibrils. Muscle fibres contract and relax in response to stimulation. The unit of neural system is neuron. Neuroglial cell protect and supports the neuron. When neuron gets stimulated, electrical impulses are generated that travel along the plasma membrane (axon). The tissues organize to form organs which in turn associate to form organ system in multicellular organisms.

Q. Which connective tissue does not secrete collagen or elastin?

In multicellular organism, a group of similar cells along with intercellular substances perform a specific function. Such organization is called tissue. Epithelial tissue provides covering or lining for some part of the body. Cells are compactly packed without intercellular space. It may be simple, compound, cuboidal or of columnar type. The connective tissues.
They are most abundant and widely distributed tissues which link and support the other tissues. All connective tissue except blood, secretes fibres of structural protein called collagen or elastin to provide elasticity an flexibility. The cells or fibres of the connective tissue may be loosely or arranged or compactly packed. Cartilage, bones and blood are specialized connective tissue. In muscle tissue muscle is made up of long cylindrical fibres arranged parallel to each other. Fibres are composed of fine fibrils called myofibrils. Muscle fibres contract and relax in response to stimulation. The unit of neural system is neuron. Neuroglial cell protect and supports the neuron. When neuron gets stimulated, electrical impulses are generated that travel along the plasma membrane (axon). The tissues organize to form organs which in turn associate to form organ system in multicellular organisms.
Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion : Cartilage and bone are rigid connective tissue.
Reason : Blood is connective tissue with fluid matrix.