WorksheetsAP Biology Responses to Environment
Total questions: 15
Worksheet time: 15mins
How many sugar molecules are produced from every six molecules of carbon dioxide that enter the Calvin cycle?
1
3
6
12
Photosynthesis goal is to
convert light energy into glucose energy
use light energy to make oxygen gas
convert sugar energy into ATP
convert sugar energy into oxygen gas
If the proton (H+) pump in the thylakoid was not working which molecule could not be made during the light reaction?
NADPH
ATP
Water
Oxygen gas
ATP is made during the light reaction using all of the following EXCEPT
proton pump
hydrogen ion gradient
electron energy from photosystem II
NADPH donating electrons
Which plant would have the most oxygen produced in 1 hour?
plant given red light only
plant given blue light only
plant given white light
plant given green light only
Green plants reflect ________ light.
Red
Green
All
Red and Violet
The light reactions occur in the ________ and the dark reactions take place in the ________.
Chloroplast / thylakoid membrane
stroma / thylakoid
mesophyl / stomata
thylakoid membrane / stroma
The H+ concentration gradient is used to
make NADPH
split a water molecule
generate ATP
form water
The NADP+ is
oxidized during the light reaction
reduced during the light reaction
oxidized during the Calvin cycle
reduced during the Calvin cycle
Which of the following is a primary response of plants to environmental stress?
Photosynthesis
Transpiration
Stomatal closure
Cell division
In response to drought conditions, which hormone is primarily responsible for signaling stomatal closure in plants?
Auxin
Gibberellin
Abscisic acid
Cytokinin
What is the role of heat shock proteins in plants?
Facilitate photosynthesis
Protect cells from heat stress
Enhance nutrient uptake
Promote cell division
Which of the following is an example of a plant's response to a biotic factor in its environment?
Leaf wilting
Flowering
Thigmotropism
Production of defensive chemicals
How do plants typically respond to high salinity in the soil?
Increase water uptake
Produce more chlorophyll
Accumulate compatible solutes
Enhance root growth
Which experiment would best demonstrate a plant's response to light direction?
Measuring oxygen production under different light colors
Observing root growth in varying soil types
Tracking leaf movement in response to light
Comparing growth rates in different temperatures
