IB Biology Topic 9: Plant Science

What is the purpose of hairs on roots?

The pressure inside the Xylem is higher than atmospheric pressure?

What are Xerophytes

Length of daylight affects the trigger for flowering?

What is the key feature of Turgid Cells?

What type of process is the Transpiration Pull?

What is the key feature of Lignin?

Name one of the variables that control the transpiration rate?

Do Dicots or Monocots produce more Xylem?

The movement of Phloem is called Active Translocation?

What does the Xylem transport?

Adhesion is the attraction of water to the cell walls?

What kind of relationship do plants and fungus have?

Angiospremophytes are plants that do not produce seeds enclosed in plants?

What are the two groups of flowering plants?

What is waxy layer of the Upper Epidermis called?

Phototropism is the growth of a stem toward light?

What does Abscisic Acid do?

Do stomata open in the day or night in Xerophytes

What does the seeding root develop?

Where are Apical Meristems found?

Name one factor that determines the direction of growth in a stem?

Auxin is transported to the brighter side of the plant?

What does the hormone Auxin do?

How many organs are in a Monocot?

What does the Stomata absorb?

What shape is most common for leaves?

When does germination often fail?

How many organs are in a Dicot?

What does the upward pull of water in the Xylem depend on?

A seed is a plant that contains an embryo plant and food reserves?

Where are Chloroplasts found?

How does water enter the plant in Root Cells?

What object receives the pollen for pollination?

Xylem Vessels are dead tubular structures?

Leaf Veins in Monocots are parallel?

Guard Cells minimize water loss from the Stomata?

When do long-day plants flower?

What is the name for the seed coat?

What do Tendrils allow the plant to do?

What does Gibberellin do?

What does the Phloem transport?

Vascular Bundles in Dicots are arranged in a ring?

Leaves attached to the stem photosynthesize more or less when phototropism takes place?

What are Meristems?

What are external stimuli in the growth of stems called?

Monocotyledons and Dicotyledons are Angiospermophytes?

Where does the Lateral Meristem develop in Dicots?

Name one way mineral ions enter the plant?

What is a necessity for germination?

What do Stem Tubers and Root Tubers do?

The transpiration pull is strong enough to go against the force of gravity?

When do short-day plants flower?