1. TOPIC: Cells AIM: What are the life processes?

2. Processes that must be carried out by ALL living things
What are
life
processes?
Processes that must be carried out by ALL living things

3. Key Words: absorption, distribution and circulation
1. Transport
Key Words: absorption, distribution and circulation

4. Example: Circulatory system = carries materials throughout your body
Example: Circulatory system = carries materials throughout your body. We want good things to get to our cells and garbage to go away from our cells.

5. Blood = carries materials in the body
Heart = pumps blood
Blood vessels = carry blood

6. Other living things have circulatory systems like we do…

7. Cells can transport materials as well.

8. Absorption = Movement of materials into cells

9. Movement of the entire body from one place to another
Locomotion

10. Animals move their whole bodies to get from one place to another.

11. Plants turn towards the light and their roots grow down into the soil.

13. 2.
Nutrition
Provides the body with materials necessary for repair of tissue and growth.

14. 1. Heterotrophic nutrition = organism cannot make it’s own food
Involves ingestion, digestion, and egestion
Example – humans

15. Ingest food = take it in (eat)

17. Digest food = break it down

18. Egestion = removing undigested food

19. Autotrophic nutrition = organisms make their own food
PLANTS= photosynthesis

20. Photosynthesis = using light to produce food (glucose)

22. Algae

23. How cells make energy called ATP.
3. Cellular
Respiration
How cells make energy called ATP.
The ATP is the energy the cells use to do all of the life processes.

24. 2 types:
1. AEROBIC RESPIRATION
requires OXYGEN to make energy
Example - humans

25. +
Glucose
Oxygen + +
Energy
Carbon Dioxide
Water

26. No oxygen required produce energy Example = yeast, bacteria
2. ANAEROBIC RESPIRATION
No oxygen required produce energy
Example = yeast, bacteria

27. Removal of METABOLIC (cellular) WASTES
Cellular wastes = wastes your cells make
CO2, water, salt, nitrogen wastes
NOT SOLID WASTE 4.
Excretion

28. Plants and animals both need to get rid of waste gas and water…

29. Sweat = water, salt, urea (nitrogen waste)

30. Increase in cell # (cell division)5.
Growth

31. Bacteria cells dividing

32. Increase in cell size

33. Babies grow into adults.
Seedlings grow into plants.
Involve both cell division and cell growth.

34. Production of new individuals
As an individual, a living thing doesn’t have to reproduce BUT as a species it must in order to keep it’s kind alive 6.
Reproduction

35. 2 types:
1. Asexual reproduction = requires 1 parent (cells divide to reproduce)

36. Other living things that reproduce by Asexual Reproduction

37. 2. Sexual reproduction – requires 2 parents
Example = humans

38. Animals have babies.
New plants grow from seeds.

39. Small molecules join to form LARGE molecules
Key Words: To make, to form, are combined
The products are more complex. 7.
Synthesis

40. Control & Coordination of body activities.8.
Regulation

41. Plants grow towards the light.
People react to the temperature around them.

42. Regulation allows ua to maintain HOMEOSTASIS
HOMEOSTASIS = maintaining a stable, internal environment

43. Sum/total of all life processes in the body
All the life processes
Metabolism

44. Cell What all living things are made of Carry out life processes
Different types
Cell

45. Just like bricks make up a brick house, cells make up a living thing.

47. Organelles
“tiny organs”
Parts of a cell