Variety of living organisms Flashcards
What are the cell walls of plants made of?
Cellulose
In what form do plant cells store carbohydrates as?
as starch or sucrose
What are the cell walls of fungi made of?
chitin
In what form do animal cells store carbohydrates?
glycogen
Common features of plants, animals, fungi and protoctists:
They all have a nucleus
What do xylem vessels carry?
They carry water and minerals dissolved in water
What do phloem vessels transport?
Sugars(glucose/sucrose)
What is the function of lignin in the xylem?
adds compressive strength and stiffness
What is the use of carbohydrates in the body?
Carbohydrates mainly serve as the source of energy.
Spare the use of proteins for energy
Use of proteins in the body?
Growth and repair of tissues.
Use of lipids in the body?
Insulate organs
transport vitamins dissolved in fat through the blood
What is the function of cytoplasm in a cell?
Provides a medium for metabolic reactions to occur in
What is the function of the cell membrane in a cell?
controls the movement of materials in and out of the cell –> permeability
What is the function of cell walls in plant cells?
provides strength and protection to plant cells.
