Tag: biology

Questions Related to biology

Which of the following cells are found in areolar tissue?

tissues of animals tissues: plant and animal tissues animal tissues structure of living organisms biology animal tissues and its type tissues: animal tissues fluid connective tissue cell division in embryo development division for growth and reproduction

  1. Mast cells

  2. Plasma cells

  3. Histiocytes

  4. All of these

Show answer
Correct Option: D
Explanation:

Areolar Tissue is a common form of loose connective tissue. Areolar tissue is found in many locations around the body.

Areolar Tissue is loose connective tissue that consists of a meshwork of collagen, elastic tissue, and reticular fibres - with many connective tissue cells in between the meshwork of fibres.
The fibres that form the mesh structure of areolar tissue include:

Collagen fibres, elastic fibres, reticular fibres
The different types of cells embedded within the areolar tissue include:
Fibroblasts, plasma cells, adipocytes, mast cells and macrophages (The histiocyte is a tissue macrophage). 

So the answer 'All of these'. 

Different types of cells are given below.

[Hepatocytes, WBC's, Basophils, Fibroblasts, Plasma cells, Mast cells, Osteocytes, Chondrobiasts.]

Identify the cells that are found embedded in the matrix of areolar tissue and select the correct option.

tissues of animals tissues: plant and animal tissues animal tissues structure of living organisms biology animal tissues and its type tissues: animal tissues fluid connective tissue cell division in embryo development division for growth and reproduction

  1. Fibrobiasts, Hepatocytes, Mast cells, Osteocytes

  2. WBC's, Basophils, fibrobiasts, Mast cells, Plasma cells

  3. Fibrobiasts, WBC's , Plasma cells, Mast cells

  4. Fibrobiasts, WBC's, Chondrobiasts, Mast cells

Show answer
Correct Option: A
Explanation:
  • Areolar tissues are widely distributed connective tissue in the animal body. It is named because so because it takes the form of fine threads crossing each other in every direction leaving small spaces called areolae. 
  • The areolar tissue consists of ground substance, the matrix, white yellow and reticular fibers and cells like fibroblasts, hepatocytes, mast cells and osteocytes.

So the correct answer is 'Fibroblasts, hepatocytes, mast cells, osteocytes'.

Tonsils in the pharynx are made up of 

tissues of animals tissues: plant and animal tissues animal tissues structure of living organisms biology animal tissues and its type tissues: animal tissues fluid connective tissue cell division in embryo development division for growth and reproduction

  1. connective tissue

  2. muscular tissue

  3. lymphatic tissue

  4. neuro-muscular tissue

Show answer
Correct Option: A
Explanation:

Thick fibers of muscle and connective tissue attach the pharynx to the base of the skull. So the correct option is ' connective tissue'.

Which type of tissue forms glands

tissues of animals tissues: plant and animal tissues animal tissues structure of living organisms biology cell division in embryo development division for growth and reproduction

  1. Epithelial

  2. Connective

  3. Nervous

  4. Uterus

Show answer
Correct Option: A
Explanation:

Epithelial tissues form the covering of all body surfaces, lines body cavities and hollow organs, and are the major tissue in glands. 

So, the correct answer is 'Epithelial' .

Pseudo stratified epithelium is present in

tissues of animals tissues: plant and animal tissues animal tissues structure of living organisms biology cell division in embryo development division for growth and reproduction

  1. Urinary bladder

  2. Nephron

  3. Larynx

  4. Trachae

Show answer
Correct Option: D

Which of the following statement is $NOT$ $CORRECT$ about the compound epithelium?
I.   It consist of several layers
II.  It covers the dry surface of the skin, the moist surface of buccal cavity, inner lining of ducts of salivary glands and pancreatic ducts
III.  It provides protection against chemical and mechanical stresses 
IV.  Being multilayered it has a great role in secretion and absorption

tissues of animals tissues: plant and animal tissues animal tissues structure of living organisms biology cell division in embryo development division for growth and reproduction

  1. Only III

  2. Only IV

  3. Only I and IV

  4. Only II

Show answer
Correct Option: B
Explanation:
Compound epithelium has a limited role in secretion and absorption. So, the correct option is "only IV".

Our outer layer of skin is an example of which type of tissue?

tissues of animals tissues: plant and animal tissues animal tissues structure of living organisms biology cell division in embryo development division for growth and reproduction

  1. Muscular

  2. Epithelial

  3. Connective

  4. Nervous

Show answer
Correct Option: B
Explanation:

Our outer layer of skin is made up of epithelial tissues. The epidermis is composed of the outermost layers of cells in the skin.

The epithelial tissue present on the inner surface of bronchi oles and fallopian tubes is :

tissues of animals tissues: plant and animal tissues animal tissues structure of living organisms biology cell division in embryo development division for growth and reproduction

  1. Squamous

  2. Cuboidal

  3. Glandula

  4. Cilia ted

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Correct Option: D
The cell junctions namely tight, adhering and gap junctions are found in ______________.
tissues of animals tissues: plant and animal tissues animal tissues structure of living organisms biology cell division in embryo development division for growth and reproduction

  1. connective tissues

  2. epithelial tissues

  3. neutral tissues

  4. muscular tissues

Show answer
Correct Option: B
Explanation:

Cell junctions are proteins that connect the cytoplasmic content of adjacent cells, they form a barrier between two cells and also hold or adhere cell together or with the extracellular matrix. these are abundant in epithelial tissue.

So, the correct answer is 'epithelial tissues'

Read the following statements regarding different types of animals tissues and select the incorrect ones.
(i) Each fasciculus (or bundle of muscle fibres) is surrounded by an epithelial tissue covering called perimysium
(ii) Multi unit smooth muscles are present in ciliary and iris muscles in the eyes and muscles of the walls of large blood vessels.
(iii) Columnar epithelium present in gastric glands, intestinal glands and pancreatic lobules, has a secretory role and is called as glandular epithelium.
(iv) Epithelial tissue arises only from the ectoderm of embryo and is usually supplied with blood vessels
tissues of animals tissues: plant and animal tissues animal tissues structure of living organisms biology cell division in embryo development division for growth and reproduction

  1. (i) and (iii)

  2. (ii) and (iii)

  3. (ii) and (iv)

  4. (i) and (iv)

Show answer
Correct Option: D
Explanation:

Each fasciculus (bundle of muscle fibres) is surrounded by a connective tissue sheath called perimysium. Epithelial tissues arise from all the three primary germ layers of the embryo i.e., ectoderm, mesoderm and endoderm.