Oesophagus helps in the movement of food from mouth to the  ________________  for digestion.

Chlorophyll is present in an animal cell.

The body of Amoeba has finger-like projections, called _______________ .

____________________ are used for the mechanical churning of food.

The longest organ of digestive system in human body ?

The upper surface of epidermis is covered with a waxy, water proof _______________,  which serves to reduce water loss from the leaf.

Which of the following are correct :

(a) The mode of nutrition in which an organism makes its own food is called autotrophic nutrition.

(b) The autotrophs prepare their own food by utilising chemical energy and they are called hydroautotrops.

(c) Green plants take carbon dioxide from the air and water and minerals from the soil through the roots.

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains _____________

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Which of the following are correct ?

(a) In human beings, the digestive system constitutes a long tubular structure called the alimentary canal .

(b) The oral cavity consists of palate, tongue and teeth.

(c) Anus is the end point of alimentary canal. The undigested food get excreted out of the body through anus.

Which of the following are correct ?

(a) Liver is the  largest gland of the body. It performs many functions. 

(b)  Liver secretes bile, which helps in purify of blood. Bile juice is produced by the liver is stored in the ‘gall bladder’.

(c) The acidic food (chyme) coming from stomach becomes alkaline  when it is mixed with bile.