Rockin' Reactions
In plants, this is known as a bending response or orientation change due to the presence of a light source.
What is phototropism?
This type of plant uses an alternative source of CO2 in hot climates to slow down oxidation of the phosphoglycerate molecules involved in the Calvin cycle
What are C4 plants?
An example of this response is the growth of plant stems against gravity.
What is negative gravitropism?
These cells are only found in hot weather plants. They break down malate for its use in the cell cycle.
What are bundle sheath cells?
This is a hormone that leads to cell elongation, and is responsible for positive phototropism in plants.
What is auxin?
To sequester CO2 for the Calvin cycle in hot climates, C4 plants separate steps in the Calvin cycle by _______ and CAM plants separate these steps by ________.
What are space (C4) and time (CAM)?
These plants flower when a period of darkness exceeds their critical night length. If this darkness is interrupted, the plant will not flower.
What are short-day plants?
Name two things that plants may do to prevent water loss in warm climates.
(1)Reduce leaf size, use fleshy leaves to store water. (2)Open stomata at night, and close them during the day, (3) fewer stomata, (4) thick waxy cuticles, (5) keep stomata in crypts instead of the epidermis, etc...
This is a slow response in plants that occurs when certain species come into contact with solid objects. This can lead to certain plants wraping themselves around this object.
What is thigmotropism?
This are plants that live in the desert.
This enzyme has a higher affinity to CO2 than Rubisco. This means it can capture CO2 at _________ concentrations than Rubisco can. Name the enzyme and fill in the blank.
What is PEP carboxylase and lower (concentrations than Rubisco)?