MEDIUM
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The term 'histology' was coined by Marcello Malpighi.

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Important Questions on Structural Organisation in Animals

EASY
If you suspect major deficiency of antibodies in a person, to which of the following would you like for confirmation evidence?
EASY
Which of the following plants tissues cannot be used as explant in tissue culture?
HARD
Which type of tissue is correctly paired with its location?
MEDIUM

Study the following statements
A) Compound epithelium forms the lining of the larger pancreatic ducts as stratified cuboidal epithelium
B) Cartilage is a vascular tissue surrounded by fibrous connective tissue sheath called perichondrium
C) Gap junctions in cardiac muscles permit electrical impulses to be conducted rapidly
D) Myelinated nerve fibres are found in grey matter of the central nervous system

Among the above, identify incorrect statements

HARD

Which of the following are the characteristic features of phloem?

i) Gymnosperms have albuminous cells and sieve cells

ii) Presence of tracheids

iii) They store food materials in the form of starch or fat

iv) They have sieve tube elements that are long, tube-like structures

v) Their end walls are perforated in a sieve like manner

The correct combination is

MEDIUM

Which one of the following is incorrect regarding WBCs?

(a) Monocytes migrate from the bloodstream to other tissues and differentiate into tissue-resident macrophages, Kupffer cells in the liver.

(b) Eosinophils modulate allergic inflammatory responses.

(c) Basophils release histamine for inflammatory response.

(d) Natural killer cells are a type of phagocytic erythrocytes.

MEDIUM

Study the following statements and identify the correct statements-
I) Microglial cells keep the cerebrospinal fluid in the ventricles of brain in constant circulation
II) Arrector pili muscles are unstriated muscles
III) Basophils remove antigen-antibody complexes from the blood
IV) Perichondrium is absent in fibrous cartilage

EASY
Which one of the following human cells lacks a nucleus?
EASY
Microscopic examination of a blood smear reveals an abnormal increase in the number of granular cells with multiple nuclear lobes. Which one of the following cell types has increased in number?
EASY
A chilly plant was severely infected with Chilly Mosaic Virus (CMV). Identify the technique that helps to raise virus free plants in the next generation from the above virus infected plant.
MEDIUM

Match List - I with List - II.

List-I List-II
(a) Cells with active cell division capacity (i) Vascular tissues
(b) Tissue having all cells similar in structure and function (ii) Meristematic tissue
(c) Tissue having different types of cells (iii) Sclereids
(d) Dead cells with highly thickened walls and narrow lumen (iv) Simple tissue

Select the correct answer from the options given below.