Core Terminology 9: Plant responses Flashcards Preview

Gd 12 LS 2018 > Core Terminology 9: Plant responses > Flashcards

Flashcards in Core Terminology 9: Plant responses Deck (13):
1

Stimulus

any change in the environment to which an organism responds.

2

Hormone

a chemical messenger; that either stimulates or inhibits.

3

Growth

permanent increase in size

4

Differentiation

changing of cells so they can perform specific functions.

5

Apical meristem

an area where repeated mitosis takes place (terminal bud)

6

Stimulate

to cause more/ increase a response

7

Inhibit

to stop or slow down a response

8

Tropism

growth movement of plant in response to an external stimulus in environment

9

Phototropism

growth of plants in response to light, (+) phototropic grow towards light, (-) phototropic grow away from light

10

Geotropism

growth of plants in response to gravity, (+) geotropic towards gravity, (-) geotropic away from gravity

11

Pathogen

micro-organism that causes disease

12

Thorn

adapted leaves found on a stem

13

Apical dominance

phenomenon where auxins in terminal buds inhibits the growth of lateral buds