Temperature Role in plants and animals

2. CONTENTS
TEMPERATURE
Factor controlling Temperature
Altitude
Latitude
Temperature Effects
o Effect on Colouration
o Effect on Reproduction
o Effect on Seed
o Effect on Metabolism
o Effect on Growth

3. PRESENTED BY
ABID ALI

4. TEMPERATURE
The degree of hotness or coldness of a body or environment.

5. TEMPERATURE FACTOR
LATITUDE As places closer to the equator are Hotter
And places further away from the equator are Colder

6. ALTITUDE
• ( This mean how high up a mountain you are )
colder
warmer

7. Organisms in the Tropics… Majority of species are found in the Tropics Climate
in Tropics fairly constant Little tolerance for change Temperature changes of even two degrees
could be fatal to some species Insects are particularly vulnerable

8. EFFECT ON COLOURATION
Temperature above 40*C may cause damage to proteins
and those above 75*C to chlorophyll pigment within the
plant.

9. British and African
Low temp
High temp
Melanin is responsible for skin color
Melanin is produced by cells called Melanocytes.
The pigment that gives human skin, hair, and eyes their color.
Dark-skinned people have more melanin in their skin than
light-skinned people have

10. EFFECT ON REPRODUCTION
Temperature
Male -----High temperatures can end sperm production
Female---- Heat stress reduces size amd number of offspring

11. Crocodile Reproduction Nests built on land, well above water level
Constructed from grasses, organic matter,
mud and soil Close to
water Lay 13-20 eggs at a time
Nests guarded ferociously
Temperature very important 32-33 O C;
all embryos will be male Cooler or
warmer; females develop

12. Temperature Effect on Seed Size and Dormancy

13. Effects on ENZYME

14. • All metabolic processes are influenced by temperature and regulates the activity of enzymes.

15. TEMPERATURE EFFECT ON PHOTOSYNTHESIS ACTIVITY

16. Effect on Growth and Development