science Flashcards
define osmosis
The net movement of water from a region of high concentration to a region of low concentration through a partially permeable membrane
define active transport
The movement of particles from a low concentration to a high concentration using energy
how do plants grow
my cell devision,mitosis, and cell elongation
Does a high or a low surface area to volume ratio allow for faster gas exchange
high
what is the word equation for aerobic respiration
Glucose + Oxygen à Carbon Dioxide + Water (+ Energy)
what type of reaction is photosynthesis
endothermic
state three limiting factors of photosynthesis
Light Intensity
Temperature
Carbon dioxide Concentratio
how are root hair cells specialised for their job
large surface area
what does phloem transport
sucrose
what does xylem transport
water and disolved minerals ions
Name the piece of equipment used to estimate transpiration rate
potometre
What is the equation for estimating transpiration rate using a potometer
Rate of Transpiration = Distance moved by the bubble/ time taken
what is the word equation for photosynthesis
Water + Carbon Dioxide à Oxygen + Glucose
What do we call the tiny pores in the surface of a plant and which cells open/close them?
stomata and guard cells
name three factors which effect the rate of transpiration
Light Intensity
Temperature
Air Flow
