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Questions and Answers

What are carbohydrates

They are carbon molecules rich in hydroxyl groups

What is the empirical formula of carbohydrates

(CH20)n

Carbohydrates were recognized as?

Important fuels and structural components

Carbohydrates are central to ?

<p>Cell survival and cell to cell communication</p> Signup and view all the answers

Carbohydrates are the basis of what?

<p>Human blood group</p> Signup and view all the answers

What does carbohydrates help to define in cells

<p>It helps define the beauty, functionality, and uniqueness of a cells by supplying details and enhancement to the biochemical structure of the cell</p> Signup and view all the answers

Carbohydrates are crucial for the development and functioning of all organisms as what?

<p>As fuels and information rich molecules</p> Signup and view all the answers

Monosaccharides are also known as

<p>Simple sugars, aldehydes and ketones</p> Signup and view all the answers

Monosaccharides serve as what?

<p>Fuel molecules and fundamental living constituents e.g DNA</p> Signup and view all the answers

Monosaccharides has how many hydroxyl groups

<p>2 or , more</p> Signup and view all the answers

What are the classication of monosaccharides based on functional groups

<p>Aldoses and ketones</p> Signup and view all the answers

What is the classication of monosaccharides based on number of carbon

<p>Trose, tetrose,pentose, hexose,heptose</p> Signup and view all the answers

What are the most common hexose

<p>Glucose and fructose</p> Signup and view all the answers

What is the sweetest chemical known and where is it found

<p>It is beta D-fructopyranose and it is found in Honey</p> Signup and view all the answers

When beta D fructopyranose is heated what does it form?

<p>Beta D fructofuranose an it less sweeter</p> Signup and view all the answers

What is the difference between the sweetness of fructose and sucrose

<p>Fructose (1.73) is 73% than sucrose (1.0)</p> Signup and view all the answers

What are the properties of carbohydrates

<ul> <li>most monosaccharides are sweet -they are solid in room temperature -they are extremely soluble in water</li> </ul> Signup and view all the answers

Carbohydrates are extremely soluble in water despite their high molecular weight why?

<p>Because of the presence of large OH groups</p> Signup and view all the answers

Glucose reacts with fehling solution

<p>Glucuronic acids</p> Signup and view all the answers

Glucose reacts haemoglobin to form what

<p>Glycosylated hemoglobin</p> Signup and view all the answers

How are disaccharides formed

<p>They are formed from glycosidic linkages of monosaccharides</p> Signup and view all the answers

How are polysaccharides formed

<p>They are formed by the linkages of multiple monosaccharides</p> Signup and view all the answers

What are the 2 forms of starch in plant

<p>Amylose and amylopectin</p> Signup and view all the answers

What is amylose

<p>It is an unbranched starch that consists of glucose residue in alpha 1-4 linkages</p> Signup and view all the answers

What is amylopectin

<p>It is the branched starch that has 1 alpha 1-6 linkages per 30 alpha 1-4 linkages</p> Signup and view all the answers

Polysaccharides play vital roles in ?

<p>Energy storage and maintaining structural integrity of an organism</p> Signup and view all the answers

What is the nutritional reservoir in plants

<p>Homopolymer starch</p> Signup and view all the answers

What is the most abundant organic compound on earth and where is it found

<p>Cellulose, plant cell wall</p> Signup and view all the answers

What is another names for pectin

<p>Poly galacturonic acid</p> Signup and view all the answers

How does soluble fiber aid digestion

<p>They slow down the movement of food in the GI tract , allowing improved digestion and absorbtion of nutrients</p> Signup and view all the answers

What does soluble fiber do

<p>It increases the rate of movement of the digestion of product in the large intestine and thus minimizes toxin exposure</p> Signup and view all the answers

What does insulin consist of

<p>Small number of beta D-fructose joined by beta 2-1 glycosidic linkages</p> Signup and view all the answers

What is inulin used for

<p>It is used to measure glomerular filtration rate, a test to access the function of the kidneys</p> Signup and view all the answers

What is the unique property of carbohydrates that gives them the ability to have many functions

<p>Their tremendous structural diversity</p> Signup and view all the answers

Why are monosaccharides much more soluble in water than molecules of similar molecular weight

<p>Because of the presence of large number of OH groups</p> Signup and view all the answers

What are glycosidic bond

<p>It is a type of covalent bond that joins 2 monosaccharides unit together to form disaccharides or polysaccharides. This reaction releases a molecule of water and is also known as condensation reaction</p> Signup and view all the answers

List the types of disaccharides

<ol> <li>Sucrose. 2. Lactose. 3. Maltose 4. Cellobiose</li> </ol> Signup and view all the answers

What is sucrose

<p>It is a type of disaccharides made up of glucose and fructose joined together by alpha 1 beta 2 glycosidic bond. They are found in sugar cane sugar beets and many other fruits, they are common sweetener that forms glucose after digestion</p> Signup and view all the answers

What are lactose

<p>They are disaccharides made up of glucose and galactose linked by beta 1,4 glycosidic bond. They are found in milk and diary products</p> Signup and view all the answers

What are maltose

<p>It is a type of disaccharide made up of two glucose molecules linked together by alpha 1,4 glycosidic bond. They are formed during the digestion of starch and malting of grains</p> Signup and view all the answers

What are cellobiose

<p>It’s the type of disaccharide made up of two glucose molecule linked together by beta 1,4 glycosidic bond. They are formed during the breakdown of cellulose in plant cell wall and cannot be directly digested by humans</p> Signup and view all the answers

Flashcards

Carbohydrates

Carbon-rich molecules with abundant hydroxyl groups.

Monosaccharides

The simplest form of carbohydrates, often referred to as simple sugars.

Disaccharides

A group of carbohydrates consisting of two monosaccharides joined together.

Polysaccharides

Complex carbohydrates made up of long chains of monosaccharides.

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Empirical Formula (CH2O)n

The empirical formula of carbohydrates, representing the basic building block.

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Aldoses and Ketoses

Monosaccharides are classified based on the presence of either an aldehyde or a ketone group.

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Trose, Tetrose, Pentose, Hexose, Heptose

Monosaccharides are classified based on the number of carbon atoms they contain.

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Glucose

The most common hexose (6-carbon sugar) found in nature.

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Fructose

The sweetest naturally occurring sugar, found in honey and fruits.

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Relative Sweetness of Sugars

Sweetness is relative to sucrose (table sugar).

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Amylopectin

A branched polysaccharide that serves as the primary form of energy storage in plants.

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Amylose

An unbranched polysaccharide that is a major component of starch.

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Cellulose

The most abundant organic compound on Earth, found primarily in plant cell walls.

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Pectin

A type of soluble fiber found in fruits, vegetables, and grains.

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Inulin

A complex carbohydrate made up of many fructose molecules linked together.

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Insulin

A hormone produced by the pancreas that regulates blood sugar levels.

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Roles of Carbohydrates in Cells

Carbohydrates are crucial for cellular survival and communication.

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Carbohydrates Defining Cellular Beauty and Functionality

Carbohydrates contribute to the unique structure and function of cells.

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Fuel and Information Rich Molecules

Carbohydrates serve both as energy sources and informational molecules in living organisms.

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Basis of Human Blood Groups

Carbohydrates contribute to the formation of human blood groups.

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Glycosidic Linkage

The process of linking monosaccharides together to form larger carbohydrate molecules.

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Hydrolysis

The chemical reaction that breaks down carbohydrates into smaller units.

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Soluble Fiber

A type of soluble fiber that can help regulate blood sugar levels.

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Insoluble Fiber

A type of fiber that does not dissolve in water.

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Reaction with Fehling's Solution

The reaction of glucose with Fehling's solution, used to detect the presence of reducing sugars.

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Glycosylated Hemoglobin

The reaction of glucose with hemoglobin, forming a compound that is used to monitor long-term blood sugar control.

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Glycogen

The storage form of glucose in animals.

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Glycation

The process of creating glycosylated hemoglobin by the reaction of glucose with hemoglobin.

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