Practice free Zoology NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Read the assertion and reason carefully to mark the correct option
out of the options given below:
A : The general formula of disaccharide is Cdn d (Hd 2d O)dn-1 d
R : The formula of sucrose is Cd12 d Hd22 d Od11 d
Read the assertion and reason carefully to mark the correct option out of the options given below: A : Oleic acid contain 18 carbon atoms and two successive carbon atoms at certain places therein are linked by double bond. R : Oleic acid are long chain unsaturated fatty acid.
Oleic acid is a monounsaturated fatty acid with the chemical formula C_{18}H_{34}O_2. It has 18 carbon atoms, and there is one double bond between the 9th and 10th carbon atoms. Hence, both the assertion and the reason are true, and the reason correctly explains the assertion.
Read the assertion and reason carefully to mark the correct option out of the options given below: A: In the structure of oils, a molecules of three fatty acids and one glycerol. R : In the structure of oils only one Glycosidic bond.
In the structure of oils, a molecule typically consists of one glycerol and three fatty acids, forming a triglyceride. However, triglycerides are connected by ester bonds, not glycosidic bonds, which are found in carbohydrates. Therefore, the assertion is true, but the reason is false.
Read the assertion and reason carefully to mark the correct option out of the options given below: A: In fish liver oil, glycerol is present as alcohol. R : Glycerol are monohydroxy alcohol.
The assertion states that in fish liver oil, glycerol is present as alcohol, which is true. However, the reason claims that glycerol is a monohydroxy alcohol, which is incorrect because glycerol is actually a trihydroxy alcohol. Therefore, the assertion is true but the reason is false.
The middle Lamella is made up of…… [CBSE AIPMT 2009]
The middle lamella is a pectin-rich layer that holds plant cells together. It is primarily composed of calcium pectate, which acts as a cementing substance. This middle layer plays a crucial role in cell adhesion and maintaining the integrity of plant tissues.
The chemical formula of starch is…… [RPMT 2002]
Find out the wrongly matched pair [Kerala PMT 010]
In a polysaccharide, the individual monosaccharides are linked by a...... [ AM U ( M e d ) 2011, Kerala PMT 2011]
In polysaccharides, the individual monosaccharides are linked by glycosidic bonds. A glycosidic bond is a type of covalent bond that joins a carbohydrate molecule to another group, which can be another carbohydrate. This bond is formed between the hydroxyl groups of two monosaccharides, resulting in the release of a water molecule (dehydration synthesis).
Generally protein and carbohydarte components are found in cow milk… [KCET 2005]
The primary protein and carbohydrate components found in cow milk are casein and lactose, respectively. Casein is the main protein found in milk and cheese, and lactose is the primary sugar or carbohydrate present in milk. This combination provides essential nutrients and energy.
Starch and Cellulose are the compounds made up to many units of…… [CPMT 1988, 89, 93, 2009]
Starch and cellulose are polysaccharides, which are long chains of monosaccharides (simple sugars). In plants, starch is a storage form of glucose, while cellulose is a structural component of the cell wall. Both are composed of repeating units of glucose, a simple sugar.
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