1 Sclerenchyma cells â Sclerenchyma cells (from the Greek skleros, hard) are hard and tough cells with a function in mechanical support. 2  They are of two broad types â sclereids or stone cells and fibres.
Aerobic respiration is the discharge of energy from glucose or another organic substrate in the presence of Oxygen. The three stages of aerobic respiration are glycolysis, citric acid cycle, and oxidative phosphorylation.Glycolysis takes place inside the cytoplasm; the citric acid cycle takes place inside the mitochondria, and the oxidative phosphorylation takes places in the mitochondria.LYCOLYSIS. Takes place in the cytoplasm of the cell and is common to both aerobic and anaerobic respiration. glycolysis means literally that glucose is split and the 6 carbon glucose molecule is broken down to 2 X 3carbon molecules of Pyruvic acid.
ATP, a high energy molecule, is expended by working cells. Cellular respiration occurs in both eukaryotic and prokaryotic cells. There are three main stages of cellular respiration: glycolysis, the citric acid cycle, and electron transport/oxidative phosphorylation. Glycolysis. Glycolysis literally means splitting sugars. Glucose, a six carbon sugar, is split into two molecules of a three carbon sugar. Glycolysis takes place in the cell's cytoplasm. Glucose and oxygen are supplied to cells by the bloodstream. In the process of glyoclysis, two molecules of ATP, two molecules of pyruvic acid and two high energy electron carrying molecules of NADH are produced. Glycolysis can occur with or without oxygen. In the presence of oxygen, glycolysis is the first stage of aerobic cellular respiration. Without oxygen, glycolysis allows cells to make small amounts of ATP. This process is called anaerobic respiration or fermentation.