Photosynthesis
The process plants use to convert light, water, and carbon dioxide into sugar and oxygen.
What is photosynthesis?
The vascular tissue that moves water upward through the plant.
What is xylem?
A plant response to light.
What is phototropism?
The main human cause of plant extinction.
What is habitat loss?
The loss of water through the stomata of a leaf.
What is transpiration?
These reactions require light and produce ATP and NADPH.
What are the light reactions?
The vascular tissue that transports glucose in both directions.
What is phloem?
A plant response to gravity.
What is geotropism?
In 1973, this law was passed to protect endangered species.
What is the Endangered Species Act?
A carbohydrate that cannot be broken into smaller carbohydrate units.
What is glucose?
The cycle of reactions that does not directly require sunlight.
What is the Calvin cycle (dark reactions)?
This process describes water movement through stomata and xylem without using energy.
What is transpiration?
Desert plants can survive dry conditions by storing water in their stems. This is an example of what?
What is an adaptation?
This results when large habitats are broken into smaller pieces.
What is fragmentation?
The regions where plant growth begins.
What are meristems?
Which gas is required for the dark reactions?
What is carbon dioxide?
Plant hormones act by switching on these.
What are genes?
A response to touch, such as vines wrapping around objects.
What is thigmotropism?
Introduced species become invasive when…
They displace native species and disrupt ecosystems.
A species that lives in an area naturally.
What is a native species?
Compare the roles of ATP and NADPH in the dark reactions.
ATP provides energy, NADPH provides electrons for building sugars.
Describe how plant hormones cause changes in a cell.
They activate genes, leading to the production of enzymes and proteins that change cell structure or function.
Suggest a way to test if a plant has sonotropism (response to sound).
Expose plants to sound in one direction and record growth/movement toward or away from it.
Hypothesize why the paperbark tree is invasive in Florida but threatened in Australia.
Florida provides fewer natural enemies or competitors, while in Australia, natural controls limit it.
An exotic species that causes harm.
What is an invasive species?