Science Std -7 L No-2

Front 1

Ingestion

Back 1

the process by which

food is taken by the

organism

Front 2

Digestion

Back 2

breaking down of

complex food

molecules into

simpler form

Front 3

Absorption

Back 3

process in which

digested food

molecules are

taken up by the

intestinal wall&

sent to the circulatory

system

Front 4

Assimilation

Back 4

process of incorporation

of absorbed food

molecules into

living cells

Front 5

Egestion

Back 5

removal of undigested

food particles from

the body

Front 6

Extracellular digestion

Back 6

digestion outside the

cells, as in higher

animals where

special organs are

present

Front 7

Intracellular digestion

Back 7

digestion within cells

as in lower animals

Front 8

Alimentary canal

Back 8

consists of mouth ,

mouth cavity,

food pipe, stomach ,smallintestine,

large intestine,

rectum & anus

Front 9

Digestive system

Back 9

alimentary canal

along with the

associated glands

Front 10

Villi

Back 10

finger like outgrowths

present on the inner

wall of the

small intestine

Front 11

Ruminants

Back 11

all the animals

who chew cud

Front 12

Rumination

Back 12

process of

chewing cud

Front 13

enzyme

Back 13

enzymes are proteins

in nature which

hasten the metabolic

reactions

Front 14

small intestine

Back 14

the longest part

of the digestive

system lies between

stomach & colon

& is the chief site

of digestion of food.

Front 15

Oesophagus

Back 15

the part of the

alim- entary canal

which connects the

throatto the stomach

Front 16

Large intestine

Back 16

the long tube like

organ that is

connected to the

smallIntestine at

the one end&

the anus at the

other end

Front 17

Rectum

Back 17

final section of

the largeInstestine

terminating at the

anus

Front 18

Liver

Back 18

a large lobed

glandular Organ

in the abodomen of vertebratesinvolved

in many metabolic

processes

Front 19

Pancreas

Back 19

a large gland behind

the stomach which

secretes digestive

enzymes into the

duodenum

Front 20

Dental plaque

Back 20

a sticky flim that

coats teeth &

contains bacteria

Front 21

Cud

Back 21

partially digested

food & is converted

into a soft pulp

is cud