Bio Flashcards
What do you red blood cells carry
Oxygen
How do you work out the rate of blood flow
Volume of blood divided by the number of minutes
What is transpiration
The movement of water into the roots up the stem into the leaves and out of the plant by evaporation
What are Guard cells
Adapted to open and close Stomata
What is a potometer
Used to estimate the rate of transpiration
What is xerophytes
Rolled leaves reduces surface area for water loss
What is translocation
The movement of dissolved sugars from the leaves to the rest of the plant for the immediate use of storage and it involves phloem tissue
What are companion cells
Controls the activities of the phloem cells
What is cellulose
Strong plant cell walls
What does starch do
Stores glucose
Why is bacteria growing at 25°
To prevent the growth of harmful pathogen
How are root hair cells able to take up water
Large surface area so absorbs more water
Why do root hair cells contain mitochondria
To release energy from glucose during respiration in order to provide the energy needed for active transport
What does osmosis need
Glucose and oxygen
How do pathogens cause infections
They are microorganisms that cause disease and they can cause communicable diseases which can be easily spread and they can be bacteria or virus or protests or fungal diseases
