Plant Classification
What are the 2 cell organelles that are found exclusively in plants?
Cell Wall
Chloroplasts
Describe the structure and function of root hairs
small fibrous objects branching off roots, and are used to better absorb water and minerals
Primary growth: growth in length
Secondary growth: growth in girth (diameter, width)
What is the first step in plant reproduction? name one method of this step.
Pollination; wind, animal, attracting pollinators
name TWO of the three types of plant tissues
vascular tissues
dermal tissues
ground tissues
True or False:
Seedless plants are vascular
Describe one type of modified root
-storage roots
-aerial: pneumatophore
-aerial: Buttress
-aerial: prop
what is the function of the root cap
To protect the apical meristematic region so it can dig deeper into the ground and allow the plant to grow taller
Provide an example of the expulsion method of seed dispersal
squirting cucumber, violets, touch-me-nots
True or False; The phloem is made u p of non-living cell walls and transports water upwards from the roots.
False; this is describing the xylem
True or False:
Green Algae is an example of a non-vascular plant. Explain your thinking.
False; it is an aquatic plant
Name two of the three functions of STEMS
1) Support
2) Growth
3) Transport
Name the region of the plant that is capable for division and growth in plants
Meristem
name 2 of the three environmental conditions for germination (the final step of the plant cycle) to occur
warmth, moisture, oxygen
where is glucose stored?
Glucose = stem
Sucrose = leaves
starch = roots
In the transition of aquatic plants evolving onto land, Name ONE of the three adaptations, and explain it's importance.
Roots: needed in plants on land to penetrate soil and reach water source
stems: rigid tissue to raise and support plants
leaves: greater surface area for photosynthesis
Where are stomata found? What is their function?
--found on the leaf
Permit gas exchange (photosynthesis)
Name the inner lateral meristem
(Hint: which Cambium layer)
vascular cambium
where is the cotyledon located and what is it's function?
in the seed (step 3 seed development)
function: stores food
why is starch needed to be converted into sucrose?
sucrose is soluble in water and starch is not.
Name TWO advantages to vascular plants.
◉Vascular Tissue allows plants to live in drier environment
◉Structure to reach water source
◉Mechanisms that reduce water loss
◉Well developed organs that allow plants to grow larger
◉Have structures grow in heights against gravity
◉Have structures that support and anchor plant
In what cells are the majority of chloroplasts located in the leaf structure?
-palisade cells (top ends of these cells are exposed to light)
describe apical dominance, what is the advantage of this?
terminal bud stops the growth of axillary buds (plant grows in height not girth) so that it can reach the sun and undergo more photosynthesis
Which step of plant reproduction does the following statement describe:
"when pollen grains meet the ovule to form the zygote" describes which step of plant reproduction?
(name that step!)
step 2, fertilization
how can trees obtain glucose in the spring
Converting from starch since most trees don't have leaves in the winter to undergo photosynthesis