Revision Assignment for class vii

Q1)Mention the various ways by which qualitative loss in the nutritive value of a food item may occur.
Q2)Name the three food groups and the nutrients present in them.
Q3)Identify the following :
a)Sense organ having receptors for touch,pain and pressure
b)Part of brain which controls thinking
c)Hormone which controls blood sugar level
d)Phytohormone responsible for flowering
Q4)What is food fad?
Q5)Give the function of following
a)Iron
b)Vitamin B
c)Iodine
d)Vitamin K
e)Roughage
f)Vitamin A
Q6)Draw a well labelled diagram of neuron.
Q7)You have accidently put your foot on a sharp object.What happens.Explain your answer with the help of reflex arc.
Q8)Give reasons for the following :
a)Pituitary is called the master gland
B)Adrenaline is called the hormone of fight, fright and flight
Q8)Explain the different type of responses by taking suitable examples.