( 2 ) Human Respiratory System ( animals and plants ) Flashcards
How do respiratory of most organisms adapt in different surrounding?
Moist surface, thin respiratory structures, large surface area
Examples of respiratory structures that adapt in different surroundings?
Moist outer skin, gills and trachea
Why do most amphibians have a moist skin?
Gaseous exchange
What are the 2 rows of filaments that gills make up of called?
Lamellae
What uses trachea as a respiratory structure?
Insects
What are the breathing pores in insects called?
Spiracles
Traches is divided into fine branches known as what?
Tracheoles
How does the diffusion of carbon dioxide in plants occur?
Occurs through the stoma according to the difference in the concentration of carbon dioxide
What is stome made up of?
Made up of a stomatal pore bounded by a pair of guard cells
Why do guard cells contain chloroplasts
carry out photsysnthesis
Stomata of plants close during the dark or during?
A hot day when a plant loses a lot of water
What is Osmosis
Process of movement of water molecules from high concentration area to a low concentration area through a semipermeable membrane
When guard cells carry out photosynthesis they become?
Turgid and curved
What at night or a hot day, guard cells become?
Flaccid and Straight
How does haze and dust affect the survival of plants?
Reduce sunlight from reaching the plant and recue the rate of photosynthesis
