SABARIGIRI COLLEGE OF EDUCATION

(AFFILIATED TO THE UNIVERSITY OF KERALA & RECOG. BY NCTE)

ANCHAL, KOLLAM, KERALA – 691306

B.Ed COURSE 2013-2014

PRESENTED BY:ASWATHY M.S.

NATURAL SCIENCEREG. NO: 13379007

WELCOME…

RESPIRATION in organisms:

INTRODUCTION :

IT IS A life long PROCESS OF INSPIRATION OF OXYGEN AND EXPIRATION OF CARBONDIOXIDE…

IT IS PRESENT IN ALL ORGANISM…

1. EARTHWORM SKIN IS THE RESPIRATORY ORGAN. PRESENCE OF MANY BLOOD CAPILLARIES

IN THE SKIN. OXYGEN FROM THE ATMOSPHERE

DIFFUSES INTO BLOOD. CARBON DIOXIDE FROM THE BLOOD

DIFFUSES OUT TO THE ATMOSPHERE.

2. COCKROACH RESPIRATORY ORGAN IS TRACHEA. OPENING ARE NAMED SPIRACLE. AIR PASSES INSIDE AND OUTSIDE

THROUGH SPIRACLES. NO ROLE OF BLOOD IN RESPIRATION

3. SCORPION RESPIRATION THROUGH BOOK LUNGS. IT APPEARS LIKE THE PAGES OF A

PARTIALLY OPENED BOOK. VENTRAL OPENENING APPEAR SLIT LIKE

APERTURE KNOWN AS SPIRACLE. BOTH INTAKE AND RELEASE OF AIR THROUGH SPIRACLE

4. FISH RESPIRATORY ORGAN GILLS. GAS EXCHANGE THROUGH THE BLOOD

CAPILLARIES IN THE GILL PHILAMENT. GILLS ARE SITUATED INSIDE GILL

CHAMBER. FISH GET OXYGEN FROM WATER.

5. FROG AN AMPHIBIAN. SKIN AND LUNGS ARE THE RESPIRATORY

ORGAN. THREE METHODS OF RESPIRATION.

1. CUTANEOUS RESPIRATION.2. BUCCAL RESPIRATION.3. PULMINARY RESPIRATION.

TADPOLE RESPIRES THROUGH EXTERNAL GILLS.

THANK YOU…