Auxins
The first plant hormone we will consider is auxin. Auxin deserves pride of place in any discussion of plant hormones because it was the first growth hormone to be …
PLANTS CONTAIN SEVERAL ALTERNATIVE ELECTRON TRANSPORT PATHWAYS
The electron transport chain described above is shared in essentially the same form by virtually all organisms plants, animals and microorganisms. Plant mitochondria contain, in addition, several other redox …
Electron Transport Chain
We noted earlier that one of the principal functions of the respiration is to retrieve, in useful form, some of the energy initially stored in assimilates. Our traditional measure …
Krebs cycle/ Citric Acid cycle
The second stage of respiration is the complete oxidation of pyruvate to CO2 and water through a series of reactions known as the citric acid cycle (CAC). The citric …
Glycolysis
The first stage of respiratory carbon metabolism is a group of reactions by which hexose sugars undergo a partial oxidation to the three-carbon acid pyruvic acid or pyruvate. Occurrence: …
Incomplete Dominance
The seven characters in pea plants that Mendel chose to study extensively all exhibited dominance, but Mendel did realize that not all characters have traits that exhibit dominance. He …
Mechanism of Sex Determination
There is a wide variety of sex determining mechanisms, but three patterns are more common. XO-XX Type This pattern of sex determination is found is grass hopper and Protenor …
Sex Chromosomes
Most animals and many plants show sexual dimorphism; in other words, individuals are either male or female. In most of these cases, sex is determined by a special pair …
Autosomal inheritance in humans
Human matings, like those of experimental organisms, show many examples of the inheritance patterns described above. Because controlled experimental crosses cannot be made with humans, geneticists must resort to …
RESPIRATION
AN OVERVIEW OF PLANT RESPIRATION Aerobic (oxygen-requiring) respiration is common to nearly all eukaryotic organisms, and in its broad outlines, the respiratory process in plants is similar to that …