Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
Bartleby Related Questions Icon

Related questions

bartleby

Concept explainers

Question
Provide one way you can reduce carbon emissions.
18°C
28°C
CORN PHOTOSYNTHESIS
RESPIRATION
TEMPERATURE
Right now, about 10% of ecosystems reach that tipping point for at least a little
while every year. If there is no change in carbon emissions and global temperatures
increase as expected then by the year 2100 more than half of all land ecosystems
could be past that tipping point. The Amazon rainforest and the Taiga of Russia and
Canada account for approximately 40 - 70% of the carbon pulled from the
atmosphere by ecosystems on land. This means that the global tipping point when
land plants put more carbon dioxide in the atmosphere than they take in will occur
around 2040. It's possible that plants can adapt and the rate of photosynthesis
could increase with increasing temperatures but scientjsts don't think that 20 years
is enough time.
Other studies have found that oceans may be getting better at absorbing carbon
dioxide due to a decrease in churning up of the ocean water. Oceans currently
absorb 40% of the Earth's carbon dioxide. The best way to help is doing what we
can to reduce carbon emissions.
ENZYME ACTIVITY
PHOTOSYNTHESIS
expand button
Transcribed Image Text:18°C 28°C CORN PHOTOSYNTHESIS RESPIRATION TEMPERATURE Right now, about 10% of ecosystems reach that tipping point for at least a little while every year. If there is no change in carbon emissions and global temperatures increase as expected then by the year 2100 more than half of all land ecosystems could be past that tipping point. The Amazon rainforest and the Taiga of Russia and Canada account for approximately 40 - 70% of the carbon pulled from the atmosphere by ecosystems on land. This means that the global tipping point when land plants put more carbon dioxide in the atmosphere than they take in will occur around 2040. It's possible that plants can adapt and the rate of photosynthesis could increase with increasing temperatures but scientjsts don't think that 20 years is enough time. Other studies have found that oceans may be getting better at absorbing carbon dioxide due to a decrease in churning up of the ocean water. Oceans currently absorb 40% of the Earth's carbon dioxide. The best way to help is doing what we can to reduce carbon emissions. ENZYME ACTIVITY PHOTOSYNTHESIS
Ecosystems and Climate Change
Ecosystems on land currently absorb about 1/3 of humnan-made carbon emissions.
This helps to reduce the effects of climate change. However, recent research
suggests that land ecosystems could accelerate climate change.
Plant cells undergo photosynthesis but they also undergo cellular respiration. How
fast photosynthesis and cellular respiration happen is dependent on temperature.
Photosynthesis and cellular respiration don't speed up or slow down at the same
rate.
The balance between removing carbon dioxide from the atmosphere and adding
carbon dioxide to the atmosphere is important in the battle over climate change.
Research was recently done to investigate how the rates of photosynthesis and
cellular respiration might change as global temperatures change.
The researchers gathered information from carbon monitoring stations around the
world. These stations monitor local daily temperatures and how much carbon was
exchanged between the atmosphere and the Earth. Using this information the
researchers were able to map changing photosynthesis and respiration rates to
temperature, locally and globally.
Below is a graph showing Enzyme Activity vs Temperature for photosynthesis by
trees, rice, and wheat (green line), sugarcane and corn (yellow line) and for plant
cellular respiration. The optimal temperatures for photosynthesis and cellular
respiration are also recorded on the graph. The tipping point in ecosystems for the
balance between photosynthesis and cellular respiration occurs when there is more
cellular respiration occurring than photosynthesis.
expand button
Transcribed Image Text:Ecosystems and Climate Change Ecosystems on land currently absorb about 1/3 of humnan-made carbon emissions. This helps to reduce the effects of climate change. However, recent research suggests that land ecosystems could accelerate climate change. Plant cells undergo photosynthesis but they also undergo cellular respiration. How fast photosynthesis and cellular respiration happen is dependent on temperature. Photosynthesis and cellular respiration don't speed up or slow down at the same rate. The balance between removing carbon dioxide from the atmosphere and adding carbon dioxide to the atmosphere is important in the battle over climate change. Research was recently done to investigate how the rates of photosynthesis and cellular respiration might change as global temperatures change. The researchers gathered information from carbon monitoring stations around the world. These stations monitor local daily temperatures and how much carbon was exchanged between the atmosphere and the Earth. Using this information the researchers were able to map changing photosynthesis and respiration rates to temperature, locally and globally. Below is a graph showing Enzyme Activity vs Temperature for photosynthesis by trees, rice, and wheat (green line), sugarcane and corn (yellow line) and for plant cellular respiration. The optimal temperatures for photosynthesis and cellular respiration are also recorded on the graph. The tipping point in ecosystems for the balance between photosynthesis and cellular respiration occurs when there is more cellular respiration occurring than photosynthesis.
Expert Solution
Check Mark
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education