Physical Factors Affecting Organisms

Question 0

• If a plant was put into a pot with water
  1. You put blue dye in
  2. Then salt

What will happen?

Answer 0

The flower will absorb the blue dye and possible become blue
- through absorption in the zylomen foam

The flower will lose water trying to balance out the salt in the pot

Question 1

What is osmosis?

Answer 1

Osmosis causes salt to move across a permeable membrane from an area of greater salinity to an area of lesser salinity

• water moves from lesser salinity to great salinity

** after time the water and salt ratio will be equal on each side **

Question 2

If humans attempt to drink salt water, what will happen?

Answer 2

The liquid in your cells will try to balance the salt water out, causing you to be more dehydrated

Question 3

What affects plant growth?

Answer 3

1. Gravity
   * geotropism - response to polar gravity
   - sends roots down to the core and stems to the earth
2. Light
   * phototropism - searching for the light, growing towards the light
3. Stress
   * frost or damage (external factors)