Dictionary » C » CAM plant

CAM plant




A plant that utilizes the Crassulacean acid metabolism (CAM) as an adaptation for arid conditions. CO2 entering the stomata during the night is converted into organic acids, which release CO2 for the Calvin Cycle during the day, when the stomata are closed.


CAM plants often show xerophytic features, such as thick, reduced leaves with a low surface-area-to-volume ratio, thick cuticle, and stomata sunken into pits.

Cam plants utilize an elaborate carbon fixation pathway in a way that the stomata are open at night to permit entry of CO2 to be fixed and stored as a four-carbon acid (i.e. malate).Then, during the day the CO2 is released for use in the Calvin cycle. In this way, the rubisco is provided with high concentration of CO2 while the stomata are closed during the hottest and driest part of the day to prevent the excessive loss of water. CAM plants are therefore highly adapted to arid conditions.

Examples of CAM plants include orchids, cactus, jade plant, etc.

Compare: C3 plant, C4 plant.
See also: Crassulacean acid metabolism, Calvin cycle.

Please contribute to this project, if you have more information about this term feel free to edit this page

Results from our forum

Re: Transpiration Please help Me

... exchange for photosynthesis to occur. It lets carbon dioxide into the plant and oxygen out of the plant. Carbon dioxide and oxygen, as well as ... part, is why plants have evolved different mechanisms (C3 versus C4 and CAM plants) to minimize water loss from the need to photosynthesize. Under ...

See entire post
by daddyjames
Sun Oct 14, 2012 2:34 pm
Forum: Botany Discussion
Topic: Transpiration Please help Me
Replies: 29
Views: 27766

transpiration experiment

What kind of plant, was it a CAM plant?

See entire post
by MichaelXY
Thu Jan 21, 2010 10:24 am
Forum: Botany Discussion
Topic: transpiration experiment
Replies: 12
Views: 9925

epiphytic algae

... that bind specifically to lignin which will help you differentiate plant cell from the fungus and most of algae. O wait, here is your lucky day I just found some info http://www-saps.plantsci.cam.ac.uk/records/rec57.htm If you have an idea of what organism you are going ...

See entire post
by Darwin420
Mon Dec 14, 2009 5:31 am
Forum: Microbiology
Topic: epiphytic algae
Replies: 3
Views: 4508

Re: Effects of change in pH on cellmembranes?

http://www-saps.plantsci.cam.ac.uk/records/rec485.htm infomation on plant cell.

See entire post
by Daniel01
Wed Jan 21, 2009 9:16 pm
Forum: Molecular Biology
Topic: Effects of change in pH on cellmembranes?
Replies: 2
Views: 1707

Photosynthesis Trivia

... the respiratory chain 16. Which of these is a function of cuticle in a plant? (A.) To direct chromosomes during meiosis. (B.) To form a barrier ... chiefly with C-3 photosynthesis and contain many chloroplasts. 3. CAM metabolism is chiefly associated with plants in cool, moist climates. ...

See entire post
by vstexas09
Mon Oct 13, 2008 12:46 am
Forum: Cell Biology
Topic: Photosynthesis Trivia
Replies: 5
Views: 30459
View all matching forum results

This page was last modified 10:49, 29 August 2008. This page has been accessed 112,076 times. 
What links here | Related changes | Permanent link