Name two type of plant growth
Primary & Secondary
I am a plant that live more than two years. Who am I?
Perennial plants
All growth curves in plants have specific shape of curve. Name the shape.
Sigmoid curve
Which part of the leaf that has the most stomata?
Lower epidermis
Lateral meristems consist of _________________ and ______________________

State the name of the first and second growth season for biennial plant.
first - vegetative growth
second - reproduction
Which plant growth contribute to annual growth rings
State the function of xylem
Xylem transports water and mineral salts absorbed from the roots to the leaf.
Substance that thicken the xylem wall
lignin
State one growth effect for secondary growth in a plant.
Increase the thickness or circumference of the plant
Name two type of mesophyll in the internal structure of the leaf.
1. Spongy mesophyll
2. Palisade mesophyll
Why spongy mesophyll has air spaces?
Allows efficient gaseous exchange during photosynthesis
Which part in the internal structure of the leaf that has chloroplast?

Palisade mesophyll
State two factors that affect the opening and closing of stomata.
1. Potassium ion uptake
2. Sucrose concentration in guard cell sap
State all four factors affecting the rate of transpiration.
1. Temperature
2. Light intensity
3. Relative air humidity
4. Air movement
Where does light-dependent reaction in photosynthesis occurs?
thylakoids