what is respiration in plants?

Question

process of respiation in plants, the glycolysis, the kreb cycle.

Answer 1

Respiration by individual organisms is the use of oxygen or the production of carbon dioxide or heat by the organism. Respiration in plants is offset by photosynthesis that uses carbon dioxide and produces dioxygen during daylight hours. The three quantifiers (carbon dioxide, dioxygen, and heat) all reflect metabolic activity, but are not all proportional to each other, as is revealed by the method of indirect calorimetry. This makes the term rather sloppy.
Cellular respiration is the process in which the chemical bonds of energy-rich molecules such as glucose are converted into energy usable for life processes, represented in chemical nomenclature as "C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy released/ATP"
The respiratory system of humans and other mammals comprises the lungs and other organs involved in breathing.
Mechanical ventilation is a method to assist or replace spontaneous breathing.

All organisms produce ATP by releasing energy stored in glucose and other sugars.

Plants make ATP during photosynthesis.
All other organisms, including plants, must produce ATP by breaking down molecules such as glucose

Aerobic respiration - the process by which a cell uses O2 to "burn" molecules and release energy

The reaction: C6H12O6 + 6O2 >> 6CO2 + 6H2O

Note: this reaction is the opposite of photosynthesis

Glycolysis (glyco = sugar; lysis = breaking)
Goal: break glucose down to form two pyruvates
Who: all life on earth performs glyclolysis
Where: the cytoplasm
Glycolysis produces 4 ATP's and 2 NADH, but uses 2 ATP's in the process for a net of 2 ATP and 2 NADH


NOTE: this process does not require O2 and does not yield much energy

The First Stage of Glycolysis

Glucose (6C) is broken down into 2 PGAL's (Phosphoglyceraldehyde - 3Carbon molecules)
This requires two ATP's

The Second Stage of Glycolysis

2 PGAL's (3C) are converted to 2 pyruvates
This creates 4 ATP's and 2 NADH's
The net ATP production of Glycolysis is 2 ATP's

Check out...
http://wine1.sb.fsu.edu/krebs/krebs.htm
http://www.uic.edu/classes/bios/bios100/lecturesf04am/lect12.htm
http://en.wikipedia.org/wiki/Respiration

Answer 2

the ytake oxygen during nights. and carbon di oxide during the day. that is why they say we should nt sleep under the tree during nights and we will suffer suffocation.

Answer 3

do they really go through all that stuff. I thought it was just photosynthesis