Ferns

Question 1

What is stomata?

Answer 1

Small adjustable pores located on the surface of leaves. They allow the exchange of CO2 and water between the leaf interior and the atmosphere.

Question 2

What does pioneer species do?

Answer 2

They can form soil (decomposition) and prevent erosion (roots hold soil down)

Question 3

What is carbon sink?

Answer 3

Years ago Ferns died and under conditions like heat, pressure and lack of oxygen formed coal beds. In this way greenhouse gasses are reduced

Question 4

How is the opening and closing of a stomata regulated?

Answer 4

When the plant senses good conditions like bright light or high humidity, it’s stomata open. This happens when guard cells swell with water through the proses or osmosis.

Question 5

What are the two types of vascular tissues ferns have?

Answer 5

Xylem and phloem

Question 6

What is the xylem?

Answer 6

Is a vascular tissue and is composed of cells which are hollow and thick walled. They allow water and minerals through the plant

Question 7

What is function of phloem?

Answer 7

Is a vascular tissue and Is a network of cells which transports solutions of nutrients and carbohydrates produced by photosynthesis

Question 8

Ferns have underground cells called what?

Answer 8

Rhizomes, they anchor the plant to the ground and absorb water and minerals

Question 9

Sporangia have a cell helmet which helps to release the spores, what is it called?

Answer 9

Annulus