Unit C: Cycling of Matter In Living Systems | Outcome 2 | L8-L10

Question 1

What organisms preform photosynthesis and celluar respiration?

Answer 1

Photosynthesis: Plants
Cellular Respiration: Plants & Animals

Question 2

What is the Dermal Tiasue

Answer 2

• Outer layer of cells that covers all non-woody plants
• Important for:
  •Gas exchange
  •Water and mineral uptake from soil

Question 3

What is the Ground Tissue

Answer 3

• Majority of the plant (everything that is not the other two types of tissue)
  •Layer beneath the epidermis.
  •Functions vary depending on location
  •Stem – strength and support
  •Roots – food and water storage
  •Leaves – where photosynthesis occurs

Question 4

What are a Plants organs and what are there functions?

Answer 4

1. Stem
   •Support and transport
2. Roots
   •Anchorage
   •Absorption nutrients
   •Storage food and water
3. Leaves
   •Site of Photosynthesis!

Question 5

What conditions affect the guards cells?

Answer 5

Conditions that affect whether stomata are open or closed:
•Temperature – high temperatures  close to reduce water loss (and vice versa)
•Humidity – decreases water loss
•Wind – increases water loss
•Amount of Solar Radiation – stomata open as photosynthesis occurs faster

Question 6

What ions are pumped into the guard cells to create a hypertonic solution in the cell that facilitates osmosis?

Answer 6

• K+ (Potassium)
• Cl- (Chlorine)

Question 7

What does glucose do regarding cellular respiration?

Answer 7

• Glucose is converted into useable ATP energy

Question 8

How do woody plants practice gas exchange

Answer 8

• Through the stomata in leaves
• natural openings on the stem of woody plants like trees and called lenticels

Question 9

What cells make up the phloem?

Answer 9

• Sieve tube cells (alive)
• They do not have a nucleus but rather connected to small nucleated companion cells that direct their activities.