Last Quiz
Where does cellular respiration occur?
Mitochondria
What is the definition of flowering plants?
Plants that produce flowers in order to reproduce.
What is Gravitropism?
The response of a plant to gravity.
What is phototropism?
The growth of a plant towards or away from light.
What are hormones?
substances that act like a chemical messengers in plants.
What are stomata?
Small opening in the bottom of the leaf that allow gases to pass through.
What is photoperiodism?
A plant's response to the number of hours of darkness in it's environment.
What is thigmotropism?
The positive or negative response of a plant to touch.
In what direction to leaves and stems grow - and why?
up - it towards the light, allowing them to maximize the light they receive.
what are the four types?
auxin, ethylene, gibberellins, cytokinins.
What is the difference between Xylem and Phloem?
Xylem transports water from the roots and Phloem transports food to the rest of the plant.
What are the three types of flowering responses?
Short-day, long-day, and day-neutral.
Are tendrils part of Thigmotropism or Gravitropism?
Thigmotropism?
Which part of the plant typically goes through negative phototropism?
The roots.
what is the only gas?
ethlyene
What is the energy called in cellular respiration?
ATP
How many hours to short-day plants need in darkness before being able to flower?
Twelve or more hours.
If stems grow away from gravity, is it positive or negative? (Gravitropism)
negative
Why might a tree's growth look different then a house plant?
The tree is getting and even amount of sunlight, the houseplant isn't.
auxins are responsible for what
increase plant growth
What is the chemical equation for photosynthesis?
CO2 + H20 + sunlight/solar energy = C6H1206 + 02
What was the flower example for long-day plants?
When vines wrap around objects, is it positive or negative thigmotropism?
positive
What are photo-receptors?
Chemicals in a plant that allow it to detect light.
Cytokinins increase the rate of cell ___ and ___
division and Elongation