BIOl173 5/2/24

High levels of auxin boost cell elongation even more than moderate levels.

• True

• False

How do roots sense gravity?

• Amyloplasts

• Auxin

• Gibberelins

• Vacuole

Which are functions of auxin?

• Ripen fruit

• Accelerate senescence (leaf/fruit falling)

• Apical dominance

• Gravitropism

• Phototropism

promotes plant cell divison

• auxins
• cytokins
• ethylene

Which does ethylene help with?

• Phototropism

• Gravitropism

• Thigmotropism

Which are more common?

• Ectomycorrhizae

• Endomychorrhizae

What would happen to a N-deficient plant if there was an excess of P in the soil?

• The plant would not store P in the vacuole to make room for nitrogen

• The plant would store nitrogen and P in the vacuole

• The plant would only store P in the vacuole until nitrogen was available

• The plant would not store either in the vacuole until there was an excess of nitrogen

Does symbiosis of plants and N-fixing bacteria require the expenditure of energy?

• Yes

• No

Catabolism requires energy.

• True

• False

A plant is a ?

• Heterotrophic, multicellular, eukaryote
• Autotrophic, unicellular, eukaryote
• Autotrophic, multicellular, eukaryote
• Heterotrophic, unicellular, prokaryote