Gas Exchange in Plants - Revision history

Ellen References at 12:10, 20 November 2019

2019-11-20T12:10:50Z

NRJC at 21:31, 7 April 2019

2019-04-07T21:31:47Z

NRJC: /* Meaning */

2019-04-07T21:31:33Z

‎Meaning

NRJC at 21:31, 7 April 2019

2019-04-07T21:31:23Z

NRJC at 10:10, 18 September 2018

2018-09-18T10:10:43Z

NRJC: Created page with "==Key Stage 3== ===Meaning=== The gas exchange system in plants allows them to absorb and release both Oxygen and Carbon Dioxide. ===Abou..."

2018-09-18T10:08:21Z

Created page with "==Key Stage 3== ===Meaning=== The gas exchange system in plants allows them to absorb and release both Oxygen and Carbon Dioxide. ===Abou..."

New page

==Key Stage 3==
===Meaning===
The [[gas exchange system]] in [[plant]]s allows them to [[Asborb (biology)|absorb]] and release both [[Oxygen]] and [[Carbon Dioxide]].

===About Gas Exchange in Plants===
: Unlike [[animal]]s [[plant]]s do both [[respiration]] and [[photosynthesis]]. This means sometimes they take in more [[Oxygen]] and release more [[Carbon Dioxide]] and other times they take in more [[Carbon Dioxide]] and release more [[Oxygen]]. Overall a [[plant]] makes more [[Oxygen]] than [[Carbon Dioxide]].
: During the day time the sunlight allows the plant to [[photosynthesis|photosynthesize]] so it takes in more [[Carbon Dioxide]] and releases more [[Oxygen]] than it needs for [[respiration]].
: During the night time where there is no light, [[photosynthesis]] cannot happen but the cells still need to [[respiration|respire]] so the plant takes in more [[Oxygen]] and releases more [[Carbon Dioxide]].

{| class="wikitable"
|-
|[[File:LeafCrossSectionDiagram.png|center|600px]]
|-
| style="height:20px; width:600px; text-align:center;" |A [[diagram]] of the cross section of a [[leaf]] showing [[Palisade Cell]]s, [[Spongy Mesophyll Cell]]s and [[Guard Cell]]s.
|}

===Adaptations of Leaves===
: '''Leaves''' have a [[Waxy Cuticle|waxy cuticle]] to stop [[water]] escaping.
: '''Leaves''' contain [[Cell (Biology)|cells]] with many [[chloroplast]]s for [[photosynthesis]].
: '''Leaves''' have [[air]] gaps between the [[Spongy Mesophyll Cell|spongy mesophyll cells]] to allow [[Gas Exchange in Plants|gas exchange]].
: '''Leaves''' usually have more [[Guard Cell|guard cells]] and [[Stoma|stomata]] on the underside (lower epidermis) than the top side (upper epidermis). These close when the [[leaf]] gets [[dehydrate]]d, stopping [[Carbon Dioxide|carbon dioxide]] getting into the [[leaf]] which stops them using [[water]] for [[photosynthesis]].

{| class="wikitable"
|-
|[[File:Stomata.png|center|400px]]
|-
| style="height:20px; width:400px; text-align:center;" |The under side of a [[leaf]] showing [[Guard Cell|guard cells]] and [[Stoma|stomata]].
|}

← Older revision		Revision as of 12:10, 20 November 2019
Line 32:		Line 32:
	\| style="height:20px; width:400px; text-align:center;" \|The under side of a [[leaf]] showing [[Guard Cell\|guard cells]] and [[Stoma\|stomata]].		\| style="height:20px; width:400px; text-align:center;" \|The under side of a [[leaf]] showing [[Guard Cell\|guard cells]] and [[Stoma\|stomata]].
	\|}		\|}
		+
		+	====Edexcel====
		+
		+	:[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Gas exchange; plants, pages 211-214, GCSE Biology, CGP, Edexcel '']
		+	:[https://www.amazon.co.uk/gp/product/1782946748/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946748&linkCode=as2&tag=nrjc-21&linkId=a4f0348fc37d0ba1bb52d27f8679581f ''Gas exchange; plants, pages 72, 73, GCSE Biology; The Revision Guide, CGP, Edexcel '']

@@ Line 1: / Line 1: @@
 ==Key Stage 3==
 ===Meaning===
-The [[Gas Exchange Systems|gas exchange system]] in [[plant]]s allows them to [[Asborb (Biology)|absorb]] and release both [[Oxygen]] and [[Carbon Dioxide]].
+The [[Gas Exchange Systems|gas exchange system]] in [[plant]]s allows them to [[Absorb (Biology)|absorb]] and release both [[Oxygen]] and [[Carbon Dioxide]].
 ===About Gas Exchange in Plants===

@@ Line 5: / Line 5: @@
 ===About Gas Exchange in Plants===
 : Unlike [[animal]]s [[plant]]s do both [[respiration]] and [[photosynthesis]]. This means sometimes they take in more [[Oxygen]] and release more [[Carbon Dioxide]] and other times they take in more [[Carbon Dioxide]] and release more [[Oxygen]]. Overall a [[plant]] makes more [[Oxygen]] than [[Carbon Dioxide]].
 {| class="wikitable"
 |-
 |[[File:LeafCrossSectionDiagram.png|center|600px]]
 |-
-| style="height:20px; width:600px; text-align:center;" |A [[diagram]] of the cross section of a [[leaf]] showing [[Palisade Cell]]s, [[Spongy Mesophyll Cell]]s and [[Guard Cell]]s.
+| style="height:20px; width:600px; text-align:center;" |A [[diagram]] of the cross section of a [[leaf]].
 |}
 : '''Leaves''' have [[air]] gaps between the [[Spongy Mesophyll Cell|spongy mesophyll cells]] to allow [[Gas Exchange in Plants|gas exchange]].
 : '''Leaves''' usually have more [[Guard Cell|guard cells]] and [[Stoma|stomata]] on the underside (lower epidermis) than the top side (upper epidermis). These close when the [[leaf]] gets [[dehydrate]]d, stopping [[Carbon Dioxide|carbon dioxide]] getting into the [[leaf]] which stops them using [[water]] for [[photosynthesis]].