EASY
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Write down the functions of reticular fiber.

Important Questions on Structural Organisation in Animals

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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?
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When a blood vessel is injured a number of physiological mechanisms are activated that promote hemostasis. Identify the correct group from the following:
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

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Statement I : Tendons attach one bone with another bone.
Statement II : Epiglottis is formed by elastic cartilage.

The correct option among the following is

EASY

Study the following.
A) Blood coagulation is also called haemolysis.
B) Blood clotting is a change in plasma.
C) Serum does not contain clotting factors like prothrombin and fibrinogen.
D) Proconvertin is involved in extrinsic pathway.

Select the incorrect statement.

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
Define connective tissue. Write down functions of connective tissue.
MEDIUM

Match the following:

    Column 1   Column 2
1. Blood and Lymph (a) Epithelial tissue
2. Bone and Cartilage (b) Areolar connective tissue
3. Tendon and Ligament (c) Skeletal connective tissue
4. Ciliated and Cuboidal  (d) Fluid connective tissue
HARD

Identify the animal tissues from the given descriptions and also mention their location in the human body.

(i) Tissue A cells are filled with fat globules and the tissue acts as an insulator.

(ii) Tissue B has cylindrical branched cells and the tissue shows rhythmic contraction and relaxation
throughout life. 

HARD
Name the tissue and write characteristic feature of
following.
(i) Connects bone to bone in humans.
(ii) Forms inner lining of alveoli.
(iii) Has prominent middle lamella.
(iv) Transports water and minerals in plants.
MEDIUM
Give a short account of structure and function of adipose tissue.
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Name the tissue found between the organs. What is its function?
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Mention the location of the following tissues.
(i) Tendon
(ii) Areolar tissues
(iii) Cuboidal epithelium