Solved by a verified expert:Question 1Which type of plant would be expected to suffer the most and the earliest during a drought?AloeCornDandelionCrabgrass5 points Question 2The increase in greenhouse gases in the atmosphere is most similar to which of the following phenomena?Putting an extra blanket or two over yourself when you go to bedAiming a fan to blow warm air from one part of the room to anotherOpening the vent in a greenhouse for increased ventilation on a hot dayCreating a fire by rubbing one stick against another5 points Question 3The use of chemical pesticides may be reduced by ________.a one-time, very strong treatment of pesticidesa reduction in the use of irrigationthe long-term utilization of integrated pest managementmulching and tilling the soil5 points Question 4Why does a houseplant growing on a windowsill tend to grow towards the window?This growth allows the plant to obtain moisture from the air outside.This growth gives leaves maximum exposure for photosynthesis.This growth allows the plant to obtain heat from the sun.This growth gives leaves maximum exposure for respiration.5 points Question 5Most of the dry weight of a plant is made up of carbon, oxygen, and hydrogen. The next most abundant element in a plant is likely to be ________.IronNitrogenZincsulfur5 points Question 6Which of the following food items is actually a unique set of modified leaves?OnionSweet potatoOat grainWhite potato5 points Question 7Which of the following is considered a Monocot?PeaTomatoCornMaple5 points Question 8The United States represents less than five percent of the world’s population. However, it is responsible for ______ of the world’s carbon dioxide emissions resulting from burning fossil fuels.25%Less than one percent10%Over 50%5 points Question 9Before deciduous trees go through abscission, they ________.move nutrients stored in their roots up into their leavessecrete pigments that cause their leaves to change coloropen their stomata to eliminate excess waterstop making chlorophyll5 points Question 10Cutting and burning forests in the tropics releases around ______ of the carbon dioxide added to the atmosphere each year.only one percent or less50% or moremore than 1% but less than 10%25%Plant Transpiration
Unit VIII
Assessment
Introduction
If you have
not already, you or someone you know will try to grow avariety
of plants either inside your house or outside in a garden. What type of soil do you
need? How often should you water the plants? Should you plant them in full sun?
Why do some plants need less water and some more? These are questions that many people
haveabout plants. In this activity, you will have a chance to manipulate different
variables tosee how much water some plants use and how much some
lose through transpiration.
Objectives
1.
Conduct virtual experiments to determine
factors that affect transpiration.
2.
Compare and contrast sustainable and
unsustainable farming practices.
Materials
Computer
with internet access
Directions
1.
Go
to: http://glencoe.mcgraw-hill.com/sites/dl/free/0078695104/383946/BL_10.html
2.
Read
the Purpose and Objectives.
3.
Read
and follow the information under Procedures and complete the lab for all 4
plants and all 3 variables.
4.
Reset the lab and complete the lab for the next set of
4 plants and 3 variables.
5.
Record
your information in the Results Table provided on this sheet.
6.
During
and after the lab, answer the questions below.
Type
all answers directly on the data sheet.
Select
Save As, and use your last name and student ID as a file name.
Upload
the data sheet as a .doc, .docx, or .rtf file when finished.
Questions
1 – 10 are short answer questions and should be answered in 2 to 3 words or 1
to 2 complete sentences. Each question is worth 2 points for a total of20
points.
1.
What
are the three different variables that you tested?
2.
State
your question.
3.
State
your hypothesis.
4.
Describe
the process of transpiration.
5. What environmental factors that you tested
increased the rate of transpiration? Was the rate of transpiration increased
for all plants tested?
6.
Did
any of the environmental factors (heat, light, or wind) increase the
transpiration rate more than the others? Why?
7.
Which
species of plants that you tested had the highest transpiration rates? Why do
you think different species of plants transpire at different rates?
8.
What
is your conclusion?
9.
Did
your results support your hypothesis?
10.
State
another question about transpiration that you would like to have answered that
you did not answer in this lab.
Results
Table 10 points
***You should include data for 8 different
plants. Make sure you reset the lab (upper right corner) to receive 4 more
plants.***
Amount of water transpired after 1
hour (mL)
Plant
Normal
Fan
Heater
Lamp
Question
11 is an extended response question and should be at least 200 words. Total: 20 points
11.
You want to reduce the amount of money that
you are spending at the grocery store. You and your family decide to plant a
small garden to provide a variety of foods. Since you completed the activity
above, you know that plants require certain nutrients in order to survive. Read
the information in the textbook concerning the future of agriculture (pages 586
– 592). What are some methods that you would implement into your garden? What would
you try to avoid? Make sure you provide a detailed answer.
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