Sonoran Jeopardy Flashcards
When a plant is injured, it will release jasmine acid ions into the phloem near the injured cells. This will cause water to flow _____ (away from or towards) the injury because of osmosis?
toward it (high water concentration to low water concentration)
TRUE OR FALSE:
All of the energy from the oxidation of chlorophyll in photosystem I is transferred into NADP+ to make NADPH.
FALSE - there is always some energy lost to entropy (heat) when energy is transferred
TRUE OR FALSE:
plants do not need to do respiration because they make ATP in the light reactions
FALSE: The ATP made in light reactions is enough to power the Calvin cycle but wouldn’t be enough to power a cell. Plants still need to convert the sugar from the Calvin Cycle into ATP using respiration.
When stomata are open the rate of water loss will increase when (3 things):
-hotter
-windier
-less humid / drier
-a plant has MORE leaves
How do you know which population is experiencing exponential growth?
per capita growth (r) remains constant and population growth rate constantly increases with exponential growth
Lions or ostriches:
-Which population has the higher POTENTIAL per capita growth rate?
ostriches
Lions or ostriches:
Which is more r-selected?
ostriches
40 years ago, Grizzlies were designated as protected by the US. Since then, the population of Grizzly bears in Yellowstone NP has increased by an average of 15 bears per year. This year’s survey revealed a population of 630 bears.
How many were there in the park when the rule went into effect?
POP GR = rNo
15 = (630 - No) / 40
No = 30
What is the downside to infraspecific competition?
it includes individuals of the same species that have to share the SAME resources, which supresses the growth of each (-,-)
My peas will grow in my garden where I have cleared a patch of dirt for them but they wouldn’t survive if I scattered their seeds in a field with other plants? Does this mean GA is part of peas’ fundamental niche or only their realized niche?
fundamental niche. The peas can only live there in the absence of competition, but they ARE capable of surviving in GA.
When plants lack water:
What happens to the turgor pressure of guard cells?
It goes down, making the cells flaccid.
When plants lack water:
What happens to the concentration of the intercellular liquids?
Intercellular fluids will become more concentrated (lower water concentration)
When plants lack water:
Does water flow down from the leaves through Xylem?
No
Where are the NADPH used in the Calvin cycle made?
Photosystem I in the Light Reactions
Why is water important for photosynthesis?
(1) it donates an electron to chlorophyll so that it can become re-exited in photosystem II
(2) It is oxidized in order to reduce chlorophyll in photosystem II.
