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A student performed an experiment to investigate the effect of varying light intensity on the rate of photosynthesis. The student placed a piece of pond weed under water in a boiling tube and shone light on it. To determine the rate of photosynthesis, the student counted the number of bubbles released from the pondweed in one minute. The table below shows the results obtained. 5. Light Intensity/ Arbitrary units 2.0 No. of bubbles released in 1 minute 7 4.0 13 6.0 21 8.0 24 10.0 30 а. Name the gas present in the bubbles released. b. i) Draw a graph to show how the rate of photosynthesis varies with light intensity.

A student performed an experiment to investigate the effect of varying light intensity on the rate of photosynthesis. The student placed a piece of pond weed under water in a boiling tube and shone light on it. To determine the rate of photosynthesis, the student counted the number of bubbles released from the pondweed in one minute. The table below shows the results obtained. 5. Light Intensity/ Arbitrary units 2.0 No. of bubbles released in 1 minute 7 4.0 13 6.0 21 8.0 24 10.0 30 а. Name the gas present in the bubbles released. b. i) Draw a graph to show how the rate of photosynthesis varies with light intensity.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A student performed an experiment to investigate the effect of varying light intensity on the rate of photosynthesis. The student placed a piece of pond weed under water in a boiling tube and shone light on it. To determine the rate of photosynthesis, the student counted the number of bubbles released from the pondweed in one minute. 5. The table below shows the results obtained. Light Intensity/ Arbitrary units 2.0 No. of bubbles released in 1 minute 7 4.0 13 6.0 21 8.0 24 10.0 30 а. Name the gas present in the bubbles released. b. i) Draw a graph to show how the rate of photosynthesis varies with light intensity.
Transcribed Image Text:A student performed an experiment to investigate the effect of varying light intensity on the rate of photosynthesis. The student placed a piece of pond weed under water in a boiling tube and shone light on it. To determine the rate of photosynthesis, the student counted the number of bubbles released from the pondweed in one minute. 5. The table below shows the results obtained. Light Intensity/ Arbitrary units 2.0 No. of bubbles released in 1 minute 7 4.0 13 6.0 21 8.0 24 10.0 30 а. Name the gas present in the bubbles released. b. i) Draw a graph to show how the rate of photosynthesis varies with light intensity.
Taxonomic Common name Scientific name group 1 Vangunu giant rat Uromys vika Mammal 2 Tapanuli orangutang Pongo tapanuliensis Mammal 3 Pink Floyd pistol shrimp Synalpheus pinkfloydi Crustacean 4 Game of Thrones ant Pheidole drogon Insect Casanova millipede Illacme tobini Myriapod Waterfall centipede Scolopendra cataracta Myriapod a. List ONE characteristic that scientists may study to determine if a new species has been discovered. b. List the common names of the FOUR Arthropods listed in Table 6. c. Describe how the number of legs of the Game of Thrones ant and the Casanova millepede differ. d. Explain why the Game of Thrones ant is more likely to survive in less humid environments than an Annelid. e. List TWO distinguishing structural characteristics that the Vangunu giant rat and the Tapanuli orangutang share. f. Another species that was discovered recently is Pheidole viserion. Use the information to determine the taxonomic group to which it belongs. Give a reason for your answer. g. In October 2017, newspapers reported the rediscovery of the giant stick insect, Dryococelus australis, in Lord Howe's Island in Australia. This species was considered to be extinct since 1920's after rats from a ship that ran off the island had eaten all the population of giant stick insects. Define the term population. i) ii) Give TWO reasons why a species may become extinct. iii) The giant stick insect is possibly the rarest insect species in the world, as only thirty individuals are known to exist. Give ONE way how this species may be protected. h. Write a note to describe how the process of eutrophication may destroy whole populations of organisms living in small freshwater lakes. LO
Transcribed Image Text:Taxonomic Common name Scientific name group 1 Vangunu giant rat Uromys vika Mammal 2 Tapanuli orangutang Pongo tapanuliensis Mammal 3 Pink Floyd pistol shrimp Synalpheus pinkfloydi Crustacean 4 Game of Thrones ant Pheidole drogon Insect Casanova millipede Illacme tobini Myriapod Waterfall centipede Scolopendra cataracta Myriapod a. List ONE characteristic that scientists may study to determine if a new species has been discovered. b. List the common names of the FOUR Arthropods listed in Table 6. c. Describe how the number of legs of the Game of Thrones ant and the Casanova millepede differ. d. Explain why the Game of Thrones ant is more likely to survive in less humid environments than an Annelid. e. List TWO distinguishing structural characteristics that the Vangunu giant rat and the Tapanuli orangutang share. f. Another species that was discovered recently is Pheidole viserion. Use the information to determine the taxonomic group to which it belongs. Give a reason for your answer. g. In October 2017, newspapers reported the rediscovery of the giant stick insect, Dryococelus australis, in Lord Howe's Island in Australia. This species was considered to be extinct since 1920's after rats from a ship that ran off the island had eaten all the population of giant stick insects. Define the term population. i) ii) Give TWO reasons why a species may become extinct. iii) The giant stick insect is possibly the rarest insect species in the world, as only thirty individuals are known to exist. Give ONE way how this species may be protected. h. Write a note to describe how the process of eutrophication may destroy whole populations of organisms living in small freshwater lakes. LO
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