IB Bio HL Topic 9 Review

Transpiration is

• The process of a gas turning into a liquid.
• A gas formed from something that is usually a liquid or solid at normal temperatures. Clouds are made of condensed vapor.
• The process by which plants give off moisture into the atmosphere.
• When a liquid changes into a vapor or gas.

Tags

NGSS.MS-ESS2-4

Cohesion is when water sticks to...

• itself
• something else

Seedless plants reproduce with ___.

• spores
• seeds
• binary fission
• flowers

Tags

NGSS.MS-LS3-2

Water and minerals move through vascular tissue known as what?

• phloem
• xylem
• root hairs
• stomata

The higher the concentration of dissolved particles in a solution (solute), the _______ the concentration of water molecules in that solution. 

• higher
• greater
• lower
• smaller

What are the cells that make up Phloem?

• tracheids

• Sieve Tube Cells

• Vessel Cells

• Tracheary Elements

Today scientists know that photoperiodicity in plants depends primarily on

• hours of darkness.
• intensity of light.
• degree of temperature.
• amount of phytochromes.

Spinach and lettuce are examples of long-day plants. What stimulus causes them to flower?

• short nights
• presence of insects 
• high temperatures
• rainfall

A commercial flower grower could induce winter flowering of a long-day plant by

• fertilizing the plant with nitrogen.
• treating the plant with gibberellin.
• covering the plant with an opaque cloth in the late afternoon.
• exposing the plant to a brief period of light in the middle of the night.

Which of the following is NOT part of the female structure of a flower?

• filament
• stigma
• style
• ovary