Vocabulary
Chemicals that circulate throughout multicellular organisms, regulating cellular processes by interacting with specifically targeted cells.
Hormones
What kind of vascular tissue makes up most of the wood in a woody stem?
Xylem
Which pigment will provide a leaf with blue, purple or pink colors?
anthocyanins
Protects the inner parts of a leaf
the epidermis
Draw a picture of a leaf on the board and label its parts.
Drawing should have apex, blade, veins, petiole and stipules labeled.
A growth response to light
Phototropism
What kind of vascular tissue is found in the inner bark of a woody stem?
Phloem
Why is the bottom of the leaf a lighter shade of green than the top of the leaf?
Because the spongy mesophyll is found there.
Allows for exchange of gases in the atmosphere
Stomata
Have one seed leaf, with leaf veins running parallel to midrib, vascular bundles are scattered in the stem, fibrous roots, and flower parts are in multiples of 3.
Monocots
A growth response to gravity
Gravitropism
If a portion of a plant is producing new cells, what type of plant tissue will be in that region?
Meristematic region
Which of the four processes for which plants require water can be neglected for a short amount of time?
Turgor Pressure
Carries water and dissolved minerals from the roots of the plants to the leaves
Xylem
Have two seed leaves, leaf veins branching from the midrib, vascular bundles in a ring in the stem, taproots, and flower parts in multiples of 4 or 5.
Dicots
A growth response to touch
Thigmotropism
What substances do phloem contain?
sugar and organic substances
Which plant hormone primarily affects the length of a plant's stem?
Auxins
Cells are packed tightly. Top of the leaf.
Palisade layer
A plant's response to stimulus such that the direction of the response is preprogrammed and not dependent on the direction of the stimulus.
Nastic Movement
Where is the abscission layer?
Between the stem and the petiole
Which of the following hormones promotes the ripening of fruits. You only have one chance.
Gibberellins, ethylene, florigen or abscisic acid
Ethylene
Food producing cells that are packed very loosely at the bottom of the leaf
spongy mesophyll
Honor track question: describe the transpiration pull and cohesion tension theory of water transport in plants.
When water evaporates through the stomata, a deficit of water is created. This causes the water molecules just below those that evaporated to move up and take their place. Since water molecules like to stay together, water molecules below the ones that move also move up in order to stay close. This causes a chain reaction and moves water from the roots to other parts.