Root, Stem, Leaves
What are the three main tissues
Dermal, Ground, Vascular
What is the word equation for Photosynthesis?
sunlight + water + Carbon Dioxide
-> Glucose + Oxygen
What type of plant has both the female and male reproduction organ on the same organism?
Angiosperms (Flowering Plant)
Gymnosperms and Angiosperms
What are the three main macronutrients plants need?
Nitrogen, Potassium, Phosphorus
What allows for the regulation of gas exchange?
The Stomata
Explain the differences between the Xylem and the Phloem (2 each)
- Xylem moves unidirectional
- Xylem transfers liquid and minerals up from roots
- Phloem in both directions
- Phloem transfers sugars food to other parts of leaf
Name three types of ways that pollen is carried
Wind, water, or animals
What are the three types of Ground tissue?
Parenchyma, Collenchyma, Sclerenchyma
What is the role of Gibberellin?
The "alarm clock"
- Hormone that wakes the seed up for germination
Explain the process of Osmosis
Water moves from an area of high concentration to an area of low concentration
Explain where the light reactions occur, and how it takes place?
- Occurs in the Thylakoid Membrane
- energy from light splits water into hydrogen
- oxygen is released as waste
- Light excites electrons which helps cells make (energy, ATP)
Explain how flowers attract pollinators and give 2 examples of pollinators
Flowers use the bright colours of their petals/leaves to attract pollinators that will transfer their pollen
- Examples: bees, birds (i.e., hummingbirds)
What are the three plant tissues?
Dermal, Ground, Vascular
What is the main role of Ethylene?
Plant gas hormone that controls ripening, aging, and the colour of the leaves
Give two differences between a monocot and dicot roots (1 must be difference between their cross section)
- Monocot has Fibrous roots (many branched roots of the same size)
- Dicot has Tap Roots (one large root, and many smaller roots)
CROSS SECTION:
Monocot root: xylem and phloem alternate around pith like region
Dicot Root: Xylem is x-shaped, phloem arranged in separate strands
Within the Root Pull Theory, explain how water moves through a tree (3 steps: roots, xylem tubes, leaves)
-2. Xylem tubes: water sticks to the sides of the tubes (adhesion) and puts other water molecules with it because water likes to stick to itself
-3. Leaves: when water evaporates out of small openings int he leaves and pulls the chain of water upward through the plant
Explain what the 2 separate sperms cells do within double fertilization
- 1st one joins with egg cell (1N) to form the zygote (2N)
- 2nd one joins with polar nuclei (2N) to form Endosperm (3N)
Where does the primary growth of the meristematic Cells occur?
Apical Meristem
Briefly explain how Auxins work?
- Light shines on one side of the plant
- Auxins move to the dark side (away from light)
- cells on the dark side elongate (stretch) more than the light side
- Causing plant to bend towards the light
Label all parts of the Leaf Tissue Anatomy Diagram
Correct Answer in my OneNote (Show students Diagram)
Explain how the Pressure Flow Theory Works?
1) Transpiration pulls water up xylem
2) source cells load sucrose into companion cells. The sucrose enters the phloem sieve tubes, reducing water potential
3) Water taken up from the xylem by osmosis, raising the pressure potential in the sieve tube
4) Internal Pressure differences drive the phloem sap along the sieve tube to sink cells
5) Sucrose is unloaded into sink cells, increasing the water potential in the sieve tube
6) and water moves back into the xylem by osmosis
Labels all parts of the flower
Answer is on my One Note
give three differences between Monocots and Dicots
Monocots: One cotyledon, floral parts in threes, parallel leaf veins, pollen grain has one pore/furrow, vascular bundles throughout stem's ground tissue
Dicot: Two cotyledons, floral parts in fours, netlike lead veins, pollen grain has three pores/furrows, stems vascular bundle arranged in a ring
What are each of the three Tropisms and what they explain? (i.e. in relation to roots and stems)
- Phototropism: stems grow towards light (positive), Roots grow away from light (negative)
- Gravitropism: Roots grow with gravity, stems grow against gravity
- Thigmotropism: growth in response to touch