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Does glucose enter cells through cell membrane or mitochondria?
Glucose is diffused through facilitated diffusion in the cell membrane. It is oxidised by glycolysis in the cytoplasm and then the products either go through the mitochondria if oxygen is present or goes through fermentation in the cytosoplasm if no oxygen.
When does Calvin cycle begin?
When acetyl CoA and oxaloacetate is present.
Why does glucose have a higher energy of confirmation than mannose?
Glucose can make more ATP through glycolysis since it is the preferred source. Whereas, Mannose have to undergo conformational changes to enter glycolysis and that change uses up extra ATP
Which of the following would not be usable by the mitochondria in absence of glycolytic enzymes?
Lactate would not be usable by the mitochondria in the absence of glycolytic enzymes. Glycolytic enzymes are necessary to convert glucose into pyruvate, which can then enter the mitochondria for further energy production. Without these enzymes, lactate would accumulate and cannot be metabolized by the mitochondria.
In which organelle does aerobic cellular respiration take place?
aerobic respiration means the oxidation of nutrients using oxygen to produce energy. it is a 4 step process. step 1 The glucose is converted to pyruvate in the cytoplasm of the cell in te absence of oxygen. this process is called glycolysis. Each glucose molecule produces 2 molecules of pyruvate. 1 Glucose----> 2Pyruvate step 2 The pyruvate formed is converted to acetyl CoA in the cytoplasm. step 3 The acetyl CoA is sent to the mitochondria of the cell where it takes part in the Kreb's cycle. it occurs in the presence of O2 this acetyl CoA can easil enter the mitochondria which is the site for further reactions. step 4 the energy produced in the above steps is converted to ATP using ATP synthase enzyme. A total of 36 ATP molecules are produced. The overall reaction for aerobic respiration is Glucose------> Pyruvate-------> CO2 + H2O + 36ATP Energy
Does glucose enter cells through cell membrane or mitochondria?
Glucose is diffused through facilitated diffusion in the cell membrane. It is oxidised by glycolysis in the cytoplasm and then the products either go through the mitochondria if oxygen is present or goes through fermentation in the cytosoplasm if no oxygen.
What is the result of glycolysis?
Glycolysis starting with glucose results in the production of 2 x pyruvic acids per glucose which continue on in to the mitochondria, in the presence of oxygen, for complete breakdown; a net gain of 2 x ATP and the production of 2 x NADH2 which can enter the mitochondria and via their donated electrons give rise to 3 x ATP per NADH2 inn the presence of oxygen.
Why only glucose enters into glycolysis why not other sugars directly enter into glycolysis?
Other sugars do enter into glycolysis such as fructose, galactose and mannose. Fructose can directly enter into glycolysis while the other two is converted to a glucose intermediate molecule because it can produce the two triose phophate molecules (DHAP and G3P) which are needed to generate energy from the reactions (ATP) and pyruvate.
What happens glycolysis?
The pyruvates enter the mitochondria to further undergo cellular respiration. The ATP molecules are used by the cell.
What gets reduced in glycolysis?
In glycolisis six-carbon sugar glucose are oxidized into two three-carbon compounds with the production of a small amount of adenosine triphosphate (ATP). Glycolysis has two basic functions in the cell. First, it metabolizes simple six-carbon sugars to smaller three-carbon compounds that are then either fully metabolized by the mitochondria to produce carbon dioxide and a large amount of ATP or used for the synthesis of fat for storage. Second, glycolysis functions to producea small amount of ATP, which is essential for some cells solely dependent on that pathway for the generation of energy.
When does Calvin cycle begin?
When acetyl CoA and oxaloacetate is present.
What chemical enters the mitochondria to continue respiration?
In aerobic respiration of glucose in eukaryotes, two molecules of pyruvic acid is produced in the cytoplasm by glycolysis of one molecule of glucose. The pyruvic acid then enters the mitochondria to go through the Krebs cycle, which will break down the pyruvic acid into carbon dioxide, which is then excreted. Putting a molecule of pyruvic acid through the Krebs cycle yields 1 molecule of ATP (2 ATP per glucose), but importing the pyruvic acid into the mitochondria costs 1 ATP molecule, so the net gain of ATP from the Krebs cycle is +0. Hydrogen ions and high-energy electrons from glycolysis also need to be imported into the mitochondria to the electron transport chain, which is where the mother-lode of ATP comes from (34 ATP per glucose molecule). Other molecules such as fatty acids and amino acids typically don't undergo glycolysis, but instead are imported directly into the mitochondria where they enter the Krebs cycle somewhere depending on their molecular structure.
Why does glucose have a higher energy of confirmation than mannose?
Glucose can make more ATP through glycolysis since it is the preferred source. Whereas, Mannose have to undergo conformational changes to enter glycolysis and that change uses up extra ATP
Which of the following would not be usable by the mitochondria in absence of glycolytic enzymes?
Lactate would not be usable by the mitochondria in the absence of glycolytic enzymes. Glycolytic enzymes are necessary to convert glucose into pyruvate, which can then enter the mitochondria for further energy production. Without these enzymes, lactate would accumulate and cannot be metabolized by the mitochondria.
How is glucose finally eliminated from the body?
Glucose is generally not excreted from the body, it can be stored as gyclogen, latter broken down for energy. In which glucose is broken down into pyruvate then into glycolosis for processing Excess glucose can be in the urine if you are diabetic. Glucose can be stored in your liver and in your muscles in the form of glycogen and then released as the cells need glucose for respiration. Glycolysis is the process whereby glucose is cut into two molecules of pyruvate. If oxygen is present, pyruvate will enter the mitochondria and chemical bonds in pyruate will be broken to release energy that will be stored in ATP
What is a product of aerobic respiration that will enter into and begin the Krebs cycle?
glycolysis yiels 2 pyruvate molecules that will undergo Kreb's cycle
Can the body convert glycerol into glucose?
Yes, glucose is stored in the body as glycerol. When the body needs more glucose it will convert some glycerol into glucose and put it into the bloodstream. No, glucose is not stored in the body as glycerol. It is stored in the body as glycogen. Glycerol is the backbone of triglycerides, and in order to be used for energy, It must be converted into glycerol-3-phosphate, after that may enter the pathway of glycolysis, or may enter the process of gluconeogenesis (generation of glucose from non-carbohydrates source).
