Tuesday, January 14, 2014

THE REGULATORS OF LIFE

Objectives

Name the following.


Define


Distinguish between

Voluntary movements V/s Involuntary movements


Explain the following Terms.

Hydrotropic movement, Chemical control in animals.


Give Scientific Reasons.

Insulin plays an important role in controlling the sugar level of blood.

Roots of plants grow away from light.

Hormones secreted by the endocrine glands are present everywhere in the body.

Reflex arcs are evolved in animals.

Tendril entwines itself around the object and clings to it.


Write Short notes on.

Reflex action

Co-ordination

Co - ordination in plants.   

Movements in plants which are growth dependent:

Movements in plants which are growth independent:

Co-ordination in human beings:

The Central Nervous System (CNS)    



Answer the following: 


Draw neat and well labelled diagrams.

Vertical section of Human brain. [Diagram]

Reflex arc. [Diagram]

Neuron [diagram]