Plant Growth

Question 1

What helps plant growth?

Answer 1

• Type of seed or species of plant
• Quality of soil
• amount of water
• amount of light

Question 1

What to plants need to do to produce new root?

Answer 1

Plants stem cells need to go through growth and differnation

Question 2

Growth

Answer 2

Increasing in size (blowing up a balloon)

Question 3

Differnation

Answer 3

cell becomes specialized to preform differnet functions

Question 4

Stimulatory Hormones

Answer 4

Auxins
Gibberellins
Cytokinins

Question 5

Inhibitory Hormones

Answer 5

Ethylene
Abscisic Acid

Question 6

Auxins

Answer 6

• Stimulate cell division and meristems in stems and roots
• Cells on the shaded side stimulated to elongate and causes the stem to bend
  Found in
  Shoot apical meristem
  Vascular cambium
  -snychroize fruit ripening

Question 7

Gibberellins

Answer 7

• Promote cell elongation and cell differentiation/division
• Have a strong effect on the size of a plant
• Have an effect on flowering and fruit production
  Found in young tissues and devolping seed
  -helps make fruits bigger and iduce ripening

Question 8

Cytokinins

Answer 8

Promote cell division
Slow cell aging
Found in Meristems
Young leaves
Growing seeds
prevents food spoilage

Question 9

Ethylene

Answer 9

• Called plant stress hormone
• Regulates growth of roots and shoots around obstacles
• Stimulates ripening of fruit,shoot/root growth/differnation, leaf and furit drop, flower/leaf sensencese
• All parts, especially when under stress , ageing, or ripening

Question 10

Abscisic Acid

Answer 10

• Inhibits growth
• Maintains dormancy in leaf buds and seeds
  Mature leaves
  Plants under stress
  -helps close stoma during dry times