Parts of the Plant
has dead cells and lignin
xylem
humidity decrease's the rate of transpiration
with increased humidity, the concentration gradient is weaker so the rate of evaporation is slower and less water is lost
In an experiment where a white flower or celery stalk is placed in coloured water, what does the movement of colour show?
It shows water transport through the xylem vessels.
has a large surface area and mitochondria
root hair cell
is the phloem packed with mitochondria
ATP Production: They are packed with mitochondria to generate ATP, which powers the active loading of sugars into the sieve tube elements
What does a potometer measure, and what does it estimate?
It measures water uptake, which estimates the rate of transpiration
materials can travel both up and down
phloem
This process produces food in the leaves that is then moved to other needed parts of the plant.
Photosynthesis
What happens to a plant when it loses more water than it absorbs?
It wilts. The cells lose turgor pressure and become flaccid
This part of the plant transport system is composed of dead cells
xylem
The glucose sugars created is stored .
Starch
This substance gives strength and support to the xylem vessels
Lignin
The place where food is made in the plant is called the source and the place where it is stored is called the sink. State the actual name for the source and sink
The source: leaf, The sink: Storage organs.