11/30/12 IB Biology 2‚ Period 1 Transpiration Lab Background Information- Transpiration is the loss of water from a plant. Plants transpire water out of the stomata in their leaves at a different rate in every environment. The amount of transpiration is affected by the environment‚ how developed the plant is to not lose as much water‚ the surface area of the leaves‚ and how affected the plant is by its environment (Von Bargen). For this experiment‚ the plant we used was (Viola tricolor subsp.
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Prof. Marilyn Combalicer Exercise 3 TRANSPIRATION I. Result and Discussion 1. Effect of the Environment Factors on the Rate of Transpiration The quantitative rate of transpiration of the branch of papua dilaw was determined using the potometer. The distance travelled by the bubble in the capillary per unit of time was observed under different treatments: a. in front of a fan‚ b. exposed to light‚ c. fan and light‚ d. no treatment. Table 1. The transpiration rate of the branch of papua dilaw
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Student Name: Student ID: Date: 19 November 2014 Course and Section Number: SCIN 131 Lesson 2 Lab: Weighing on an Analytical Balance & Distillation PART 1 Begin by viewing the following Thinkwell video 15.1.8 CIA Demonstration: Weighing on an Analytical Balance After you watch the above video‚ answer the questions below in sufficient detail: (a) (2 pts) What are the features of an electronic balance? Include all of those discussed in the video. Answer: Electronic balance features including electronic
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Adriana Gutierrez AP Biology Lab 9 Analysis 1. For this experiment‚ what were the independent variable and the dependent variable? What were the constants? The independent variable of this experiment are the environmental factors that you are testing on the rate of transpiration‚ so our independent variables would be bright light‚ fan‚ dark‚ and misted. The dependent variable is the rate of transportation because this depends on whatever environmental factor the plant is placed. The constants were
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Prof. Wayne MacKenzie SCIN 137 22 February 2015 1. The pressure announced on last night’s television weather broadcast was 29.92. Explain how this was measured and give the units. Would this be considered an unusually large or low pressure value? a. 29.92 is the standard sea level pressure‚ identified by inches of Mercury in a barometer‚ and identifies the pressure over an area using the millibar. This would not be considered a large/low pressure measurement. 2. If the earth did not rotate‚ how
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Chem 1B Worksheet #2 Name ____________ Due 1/11/13 (1/6/13 stamp) I. Balance Redox Equations in acid (H+) or basic (OH-) media. Assume ions are (aq)‚ even when “aq’ is not shown. 1. MnO4- + Sn2+ ( Mn2+- + Sn4+ H+ 2. FeCl2 + H2O2 ( FeCl3 + H2O H+ 3. AsO43- + I- ( AsO33- + I2
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environmental conditions affected the rate of transpiration of a plant. The environmental factors we looked at were the affects of various temperatures and different light amounts in the different temperatures. We found that as the temperature warmed up‚ the rate of transpiration was higher. When the temperature was at five degrees Celsius‚ the rate of transpiration was very low. When we took out half of the light source and measured the rate of transpiration in the three temperatures we found the same
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CHM130 Lab 7 Determining the Formula of a Compound A. Data Table (show completed data table here) (12 points) |Measurements |Mass (in grams) | |Mass of empty 100 mL beaker |55.45 g | |Mass of zinc metal
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BGY 2001 CONCEPT OF BIOLOGY Laboratory Report PRACTICAL 8 TRANSPIRATION Tittle: Transpiration Objectives: 1. To measure transpiration rates by using photometer. 2. To determine the factors that influences the rate of water loss from a plant through transpiration Introduction: Most of the water a plant absorbs is not used for a plant’s daily functioning. It is instead lost through transpiration‚ the evaporation of water through the leaf surface and stomata‚ and through guttation
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Part 1 of 1 - 40.85/ 100.00001 Points Question 1 of 22 4.55/ 4.55 Points Record your answer from Lab Exercise #1‚ Step 1‚ Question 1.What time in hours:minutes:seconds GMT did the P waves arrive? A. 01:48:00 Correct B. 01:49:00 C. 01:50:00 D. 01:51:00 Answer Key: B Question 2 of 22 0.0/ 4.55 Points Record your answer from Lab Exercise #1‚ Step 1‚ Question 2. What time in hours:minutes:seconds GMT did the S waves arrive? A. 01:51:30 B. 01:52:00
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