Tag: division for growth and reproduction

Questions Related to division for growth and reproduction

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

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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

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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

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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.

Which of the following is related to the morphological changes during aging?

different stages of growth reproductive system in humans division for growth and reproduction human system biology

  1. The number of taste bud decreases.

  2. Decreased rate of cardiovascular functions.

  3. The reduction in the nephron.

  4. All of the above

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Correct Option: D
Explanation:
  • Ageing is a complex process that varies as to how it affects different people and even different organs. Most gerontologists (people who study aging) feel that aging is due to the interaction of many lifelong influences. These influences include heredity, environment, culture, diet, exercise and leisure, past illnesses, and many other factors.
  • Morphological changes during aging include the number of taste bud decreases, Decreased rate of cardiovascular functions and The reduction in the number of nephrons.
  • So, the correct answer is 'All the above'.

............... is the pigment which is mainly released due to degradation of phospholipids in the cell membrane and actively participates in the ageing.

different stages of growth reproductive system in humans division for growth and reproduction human system biology

  1. Lipofuchsin

  2. Free radical

  3. Cellular proteins

  4. None of the above

Show answer
Correct Option: A
Explanation:
  • Ageing is a complex process that varies as to how it affects different people and even different organs. Most gerontologists (people who study aging) feel that aging is due to the interaction of many lifelong influences. These influences include heredity, environment, culture, diet, exercise and leisure, past illnesses, and many other factors.
  • Lipofuscin (age pigment) is a brown-yellow, electron-dense, autofluorescent material that accumulates progressively over time in lysosomes of postmitotic cells, such as neurons and cardiac myocytes. It participates in the ageing phenomenon.
  • Hence Lipofuchsin is the pigment which is mainly released due to degradation of phospholipids in the cell membrane and actively participates in the ageing.
  • So, the correct answer is 'Lipofuchsin'.

Which of the following process can be related to ageing? 

different stages of growth reproductive system in humans division for growth and reproduction human system biology

  1. Mutation

  2. Chromosomal abbreviations

  3. Genetic recombinations

  4. Both A and B

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Correct Option: D