Hormones Homeostasis

1. Coordination and regulation: Endocrine systems Chapter 5

2. Our external environment often changes, but our internal environment must stay constant, how can this be achieved?

6. Body systems involved in Homeostasis Nervous Endocrine (hormonal) Respiratory Circulatory Digestive Excretory Integumentary (skin)

8. A (hopefully) useful analogy) SENSORS detect if car speed is lesser or greater than 60kph Going too fast Going too slow Brake Accelerate Go slower Go faster EFFECTORS increase or decrease speed

12. Not all feedback mechanisms are negative (but most are)

14. Communication between adjacent cells

17. Three types of Hormones

34. The burning of kerosene releases ethylene gas which would have made the fruit ripen more rapidly

35. Pair the plant hormone with its function B D E A C E) Increases rate of cellular respiration Cytokinins D) Stimulates seed germination Abscisic Acid C) Promotes cell division Ethylene B) Promotes stem growth through cell elongation Giberellins A) Promotes seed dormancy Auxin

36. C

37. D