CHAPTER 7: STRUCTURAL ORGANISATION IN ANIMALS

Smooth muscles are

Choose the correctly matched pair.

The Ligament is a/an

Which one of the following correctly describes the location of some body parts in the earthworm Pheretima?

Which of the following statement about cell junctions is false?

i. All the cells of the epithelium are held together with little intercellular materials.

ii. In almost all animal tissues specialized junction provide both structural and functional link between its individual cells.

iii. Tight junctions help to stop substances from leaking across a tissue.

iv. Adhering junctions provide cementing to keep neighbouring cells together.

v. Gap junctions provide cytoplasmic channels between cells for passage of ions, small molecules and sometimes big molecules.

i. The shape of the cells may vary with the function they perform

ii.Human RBC is about 7.0 μm in diameter

iii. Cytoplasm is the main arena of cellular activities

iv. Various chemical reactions occur in cytoplasm to keep the cell in the living state

Select the correct route for the passage of sperms in male frogs.

In male cockroaches, sperms are stored in which part of the reproductive system?

Microvilli of epithelial cells –

Which of the following types of connective tissue is mismatched with its matrix ?

The principal function of blood vascular system in cockroach is –

In Camel, the hump is mainly made of tissue