Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 67878

The exchange of gases across organs that facilitate transport of the gases to and from the cells of the organism.

2 votes

If stomata is closed at night ,how does exchange of oxygen take place at night?

Respiration however continues 24/7 but the rates vary. During the night, the rate of respiration drops since stomata are closed. But it never drops to 0. … Respiration still happens as oxygen exchange can still be done through the following three routes: . Direct diffusion of oxygen through the waxy cuticle in minute amounts . …
Andy2000's user avatar