Plant response to environment

Question 1

physical injury/insect injury

Answer 1

signals produced (systemim). receptors detect them causing other signals production

Question 2

changes in temperture causes

Answer 2

tree growth

Question 3

seed germination causes

Answer 3

hormone produced –> enzymes produced. changes in growth due to hormones

Question 4

response to light causes

Answer 4

growth (phototropism) –> towards light source. response to duration (photoperiod) –> flowering (photochrome)

Question 5

response to gravity

Answer 5

roots grow toward gravity, auxins involved; root tips have gravity sensing cells

Question 6

repsonse to UV radiation

Answer 6

plants accumulate pigments which serve as anti-oxidants for protection against UV. i.e. green tea, tomato, kale

Question 7

play music.talking cause

Answer 7

plants to grow better

Question 8

what are phytosteroids

Answer 8

chemicals in plants, have activity of estrogen