Question

You might have observed the permanent slide of neuron under microscope. List out your observations​

Answer 1

Answer:

Preparation of temporary slide of animal tissues and their study. ... Connective tissues have special function of linking and ... may be single or multi-​layered. ... Your observations under the microscope should enable you to draw the red ... Observe permanent slide preparation of L.S. of cardiac muscle.

Explanation:

Answer 2

Your observations under the microscope should enable you to draw the red

blood corpuscles (RBC’s) of human blood. RBCs (erythrocytes) are biconcave,

circular and non-nucleated. Observe carefully the various types of white

blood corpuscles (WBC’s), the eosinophils, the basophils and neutrophils.

Also observe the blood platelets (Fig. 5.2). Draw a labelled diagram of different

types of cells seen in your preparation.

Fig. 5.1 (a-c) Preparation of blood smear

(a) (b) (c)

Note: Distinguishing features of different cells.

A. RBCs are circular and without nuclei. By changing the focus, you can

realise that RBCs are biconcave as the central part is lighter.

B. Shape of WBC is irregular.

Mainly two types of WBC are found-

(a) Granulocytes: Granules are found in these cells. These cells are of the

following types:

• Eosinophils or Acidophils: Its nucleus is trilobed and twisted into

an 'S' shape.

• Basophils – Its nucleus is bilobed.

• Neutrophils – Its nucleus is multilobed (2-5 lobes).

(b) Agranulocytes: Its cytoplasm is without granules and nuclei are non-

lobed. These are of the following types.

• Monocytes – These are large in size with kidney shaped nucleus.

• Lymphocytes – They are slightly bigger than RBC with spherical

nucleus.

C. Platelets have no nuclei. They appear in clusters as violet granules.

Hope it helps you.

Namaste.