Tag: division for growth and reproduction

Questions Related to division for growth and reproduction

Match column I (terms) with column II (definitions) and select the correct options from the codes given.

Column I Column II
A. Parturition (i) Attachment of embryo to endometrium
B. Gestation (ii) Release of egg from Graafian follicle
C. Ovulation (iii) Delivery of baby from uterus
D. Implantation (iv) Duration between pregnancy and birth
E. Conception (v) Formation of zygote by fusion of the egg and sperm
(vi) Stoppage of ovulation and menstruation
  1. A - (ii), B - (iv), C - (i), D - (v), E - (vi)

  2. A - (iv), B - (iii), C - (i), D - (v), E - (ii)

  3. A - (v), B - (vi), C - (ii), D - (iii), E - (iv)

  4. A - (iii), B - (iv), C - (ii), D - (i), E - (v)


Correct Option: D
Explanation:

Parturition is the delivery or childbirth of baby from the uterus. Gestation is the period of development during the carrying of an embryo or fetus inside viviparous animals and the duration between pregnancy and birth. Ovulation is the process of release of the ovum from the Graafian follicle as it ruptures. Implantation is the process of attachment of the zygote to the endometrial lining of the uterus. Conception refers to the post-fertilization fusion of the egg and sperm into the zygote.

So, the correct option is 'A - (iii), B - (iv), C - (ii), D - (i), E - (v)'.

Which of the following organs contain(s) smooth muscles?

  1. Blood vessels

  2. Iris of the eye

  3. Bronchi

  4. All of the above


Correct Option: D
Explanation:

Smooth muscles are spindle-shaped and are under involuntary control. They are seen in the internal organs such as the blood vessels, iris and the lung bronchi. In the blood vessels, they enable the blood flow. In iris, they increase the pupil size in the presence of bright light. They help in lung contraction and relaxation due to their presence in bronchioles. Thus the correct answer is option D.

Which of the following tissues is made up of long contractile cells packed with actin and myosin microfilaments?

  1. Epithelial tissue

  2. Adipose tissue

  3. Fibrous connective tissue

  4. Nervous tissue

  5. Muscle tissue


Correct Option: E
Explanation:

Muscles contract via the action of proteins actin and myosin. Both these proteins are present as microfilaments. Actin forms the thin filaments of muscle cells and myosin forms the thick filaments.

So, the correct answer is 'Muscle tissue'.

Myology is the study of

  1. Muscles

  2. Bones

  3. Cartilages

  4. None of the above


Correct Option: A
Explanation:

"Myo" refers to "Muscles". Myology is the study of the muscular system, including the study of the structure, function, and diseases of muscle.

Which of the following cells are found in areolar tissue?

  1. Mast cells

  2. Plasma cells

  3. Histiocytes

  4. All of these


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.

  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


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 

  1. connective tissue

  2. muscular tissue

  3. lymphatic tissue

  4. neuro-muscular tissue


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'.