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Starch occurs in two forms, alpha-amylose and amylopectin. Each may be enzymatically hydrolyzed: a-amylose by a-amylase [a(1-4)-glucan 4-glucanohydrolase], present in saliva and pancreatic juice; or by beta-amylase [a(1-4)-glucan maltohydrolase.
The a- and b-amylases also 'attack' amylopectin. Polysaccharides of intermediate length thusly formed are called dextrins.
What else can I help you with?
What Process in Cellular Respiration requires 2 ATP to be invested?
Glycolysis cannot begin without two ATP molecules to start the process. Glycolysis yields 4 ATP molecules. Therefore, since 2 ATP molecules had been used up prior to the creation of the 4 ATP molecules, glycolysis has a net gain of 2 ATP molecules.
Will glucose or sucrose under go more fermentation?
Sucrose is a double sugar and one molecule of sucrose is broken into one molecule of glucose and one molecule of fructose by the yeast (with and enzyme called invertase) prior to fermentation. From a pure chemical reaction perspective 1kg of can produce slightly more alcohol than 1kg of glucose, but given the right environment yeast can fully ferment both. Most brewers yeast prefers glucose to fructose so the glucose will be tend to be consumed first. Glucose is more expensive than sucrose so sucrose is a more cost effective choice.
Which one is formed during the Krebs cycle FADH2 or pyruvic acid?
FADH2 since pyruvic acid is needed to START the Krebs cycle
What molecule is the source of basic material used for the production of glucose in the Calvin or light independent cycle of photosynthesis?
Mainly the molecules used in the Calvin Cycle are from the light reactions prior to it, and therefore, the ATP energy made in the light reaction fuels the Dark Reaction which will eventually form Glucose
What produces ATP?
There are three things that can produce ATP: chloroplast, cytoplasm, and mitochondria. There are three ways that ATP can be produced: photophosphorylation, substrate level phosphorylation, and oxidative phosphorylation. Most of ATP molecules are made from cellular respiration in the cell. Some are produced in the Cytoplasm and some in the inner compartment of the Mitochondria. Production of ATPs usually have 3 phases. We usually produce 36-38 ATPs, but before production of ATP is done you need 2ATP to start Glycolysis (substrate level phosphorylation, occurs in cytoplasm): breaking of sugar(glucose) produce 2 net ATPs, 2 NADH, and 2 pyruvates(3 carbon molecule c-c-c) I told you is the breaking down of sugar so if glucose is a 6 carbon mole if broken down gives you 3 carbon molecule each call pyruvate. Kreb or Citric acid cycle (substrate level phosphorylation, occurs in matrix of mitochondria): Prior to citric acid cycle, the pyruvates from glycolysis are converted into acetyl CoA. This then binds with oxyloacetate to form citric acid, hence the name of the cycle. One cycle produces 1 ATP, 3 NADH, and 1 FADH2, but since there are two pyruvates for each glucose, the net products from the Kreb cycle produces 2ATPs, 6 NADH and 2FADH2 Electron transport chain (oxidative phosphorylation, occurs in inner membrane of mitochondria): The NADH and FADH2 act as electron carriers and dumps electrons to a series of proteins and a lipid known as the electron transport chain. As electrons move across the membrane, hydrogen ion exits the membrane, creating a proton gradient, which goes through ATP synthase and attaches to ADP to form the high energy molecule ATP. The electrons are accepted by oxygen at the end of electron transport chain to form water. This by far creates the most ATP molecules. Light dependent reaction in photosynthesis (photophosphorylation, occurs in thylakoid membrane of chloroplasts): The principle is the same as the electron transport chain, but instead of being dumped by an electron carrier, the present electrons in the thylakoid membrane are excited by sunlight and move across the chain and allow proton gradient to form ATP from ADP. Light dependent Reaction: 2 ATP. GLYCOLYSIS: 2 ATPs KREB CYCLE: 2 ATPs ETC: 32 ATPs
How is starch broken to glucose prior to glycolysis?
Starch occurs in two forms, alpha-amylose and amylopectin. Each may be enzymatically hydrolyzed: a-amylose by a-amylase [a(1-4)-glucan 4-glucanohydrolase], present in saliva and pancreatic juice; or by beta-amylase [a(1-4)-glucan maltohydrolase. The a- and b-amylases also 'attack' amylopectin. Polysaccharides of intermediate length thusly formed are called dextrins.
How is starch Broken down to glucose prior to glucose's?
Starch occurs in two forms, alpha-amylose and amylopectin. Each may be enzymatically hydrolyzed: a-amylose by a-amylase [a(1-4)-glucan 4-glucanohydrolase], present in saliva and pancreatic juice; or by beta-amylase [a(1-4)-glucan maltohydrolase. The a- and b-amylases also 'attack' amylopectin. Polysaccharides of intermediate length thusly formed are called dextrins.
Why do you suppose that a chloroplast kept in darkeness for some time prior to being fixed for electron microscope does not contain starch?
Chloroplasts require light to perform photosynthesis and produce starch. In the absence of light, chloroplasts cannot convert carbon dioxide into glucose, so there would be no starch present. Starch is a storage form of glucose produced by photosynthesis.
In what form is the energy stored prior to use in respiration?
Energy is stored in the form of glucose molecules in carbohydrates such as starch and glycogen. This energy is then released during the process of respiration to produce ATP, the cell's main energy currency.
What Process in Cellular Respiration requires 2 ATP to be invested?
Glycolysis cannot begin without two ATP molecules to start the process. Glycolysis yields 4 ATP molecules. Therefore, since 2 ATP molecules had been used up prior to the creation of the 4 ATP molecules, glycolysis has a net gain of 2 ATP molecules.
Why is hamburger tested negative for starch?
A hamburger's main ingredient is ground beef, which has no starch. However, there are many methods to prepare the meat prior to cooking it as a hamburger. This can include use of breadcrumbs as a filler, and if these are not used, there most likely is no starch in the hamburger.
Will glucose or sucrose under go more fermentation?
Sucrose is a double sugar and one molecule of sucrose is broken into one molecule of glucose and one molecule of fructose by the yeast (with and enzyme called invertase) prior to fermentation. From a pure chemical reaction perspective 1kg of can produce slightly more alcohol than 1kg of glucose, but given the right environment yeast can fully ferment both. Most brewers yeast prefers glucose to fructose so the glucose will be tend to be consumed first. Glucose is more expensive than sucrose so sucrose is a more cost effective choice.
Why should legumes also be rinsed prior to use?
to remove starch so they stick together so much
What preparation is required prior to a glucose test?
Blood glucose tests require either whole blood, serum, or plasma collected by vein puncture or finger puncture. No special preparation is required for a casual blood glucose test.
Why is potato phosphorylase de-starched prior to its use?
well, its because too much starch in your diet makes you die a horribly painful death.
What checks are to be carried out to ensure all materials required are correct and complete prior to undertaking activity?
broken femur
Why is milk sweet in taste?
That's because the lactose is broken down into two other easily digested sugars which are sweeter: breaks into galactose and glucose... this occurs through hydrolysis in the milk prior to drinking it ( because lactase is found in the milk, which contains lactose), thus creating a sweeter milk).
