Collagen fibres are secreted by:

(1) Fibroblast

(2) Mast cells

(3) Histocyte

(4) Macrophages

Subtopic:  Connective Tissue |
 89%
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In the below diagram of areolar connective tissue, the different cells and parts have been indicated by alphabets.

Choose the answer in which these alphabets correctly match with the parts and cells they indicate:

 

   A

   B

   C

   D

(1)  

Adipocyte

Collagen fibres

Microfilament

Mast cells

(2)

Macrophage

Collagen fibres

Microfilament

Mast cells

(3)

Macrophage  

Collagen fibres  

Microtubule

RBC

(4)

Macrophage

Fibroblast

Collagen fibres  

Mast cells

Subtopic:  Connective Tissue |
 79%
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Identify figure-I and II respectively:

(1) Dense regular connective tissue, dense irregular connective tissue

(2) Dense irregular connective tissue, dense regular connective tissue

(3) Adipose tissue, specialised connective tissue

(4) Connective tissue proper, specialized connective tissue

Subtopic:  Connective Tissue |
 93%
From NCERT
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Bone forming cells are:

(1) Osteoclasts

(2) Osteoblasts

(3) Chondroblast

(4) Chondroclasts

Subtopic:  Connective Tissue |
 81%
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Cells of cartilage (chondrocyte) are enclosed in small cavities within the matrix secreted by:

(1) Osteoclast

(2) Osteoblast

(3) Chondrocyte

(4) Chondroclasts

Subtopic:  Connective Tissue |
 73%
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Identify figure-I and II, structures A and B respectively? Figures are related with specialised connective tissues:

  Fig. I Fig. II    A    B
(1)  Cartilage   Bone Collagen Chondrocyte
(2) Cartilage Bone Collagen Chondroclast
(3) Cartilage Bone Microtubule Chondroclast
(4) Bone Cartilage   Collagen fibres   Oesteoblast
Subtopic:  Connective Tissue |
 81%
From NCERT
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Identify the following cells in a specialised connective tissue:

    A

    B

   C

1.  

Macrophage   

Adipocyte

Platelets

2.

WBC

RBC

Platelets

3.

RBC

WBC

Platelets

4.

Adipocyte

Chondroclast   

Platelets

 84%
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Each muscle is composed of many long, cylindrical fibres arranged in parallel arrays. These fibres are composed of numerous fine fibrils, called:

(1) Microfilament

(2) Myofibrils

(3) Microtubule

(4) Sarcoplasm

Subtopic:  Animal Tissue: Muscle Types & Skeletal Muscles |
 88%
From NCERT
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Which of the following statements is correct about the cardiac muscles?

I. It is present in heart only

II. The plasma membranes of adjacent cardiac cells interlock at intercalated disc

III. The intercalated disc contains desmosome (adhering and gap junction)

IV. Gap junctions allow the cardiac cells to contract as a unit

(1) All are correct

(2) None of these

(3) II and IV only

(4) I and II only

Subtopic:  Cardiac Muscle & Smooth Muscle |
 75%
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Nervous tissue is made up of neurons and neuroglial cells. Point out which of the following statement about these two cells is false:

I. Neuroglia make up more than one-half the volume of neural tissue in our body

II. Neuroglia protect and support neurons

III. When a neuron is suitably stimulated, an electrical disturbance is generated which swiftly travels along its cytosol

IV. This disturbance at the neuron endings triggers stimulation or inhibition of adjacent neurons or other cells

(1) Only I and IV

(2) Only II and III

(3) Only III

(4) Only IV

Subtopic:  Nervous Tissue |
 70%
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