Glucose is:

Solution:

Glucose is a simple sugar and a carbohydrate, serving as a primary energy source in the body.

The deficiency of vitamin D causes:

Solution:

Vitamin D deficiency leads to rickets, a condition characterized by softening and weakening of bones in children.

_______ encodes genetic information.

Solution:

DNA (Deoxyribonucleic Acid) encodes genetic information in living organisms.

The carbohydrates which contain aldehyde group are called:

Solution:

Aldoses are carbohydrates that contain an aldehyde group.

Amino acids are building blocks of:

Solution:

Amino acids are the basic building units of proteins.

Which one of the following is a polysaccharide:

Solution:

Starch is a polysaccharide carbohydrate consisting of a large number of glucose units.

Lactose is:

Solution:

Lactose is a disaccharide sugar found in milk, often referred to as milk sugar.

What is true about a peptide?

Solution:

A peptide is essentially a polyamide, formed by linking amino acids through peptide bonds.

Fats are solids at:

Solution:

Fats are typically solid at ordinary room temperature.

Cotton contains _______ cellulose.

Solution:

Cotton is composed of approximately 95% cellulose, a polysaccharide.

What is the general formula of carbohydrates?

Solution:

The general formula of carbohydrates is \(C_n(H_2O)_n\), indicating they are hydrates of carbon.

What functional group is present in aldoses?

Solution:

Aldoses contain an aldehyde functional group.

Ketoses are a family of carbohydrates that contain:

Solution:

Ketoses contain a ketone group and hydroxyl groups.

Carbohydrates that give 2 to 10 monosaccharides upon hydrolysis are called:

Solution:

Oligosaccharides yield 2 to 10 monosaccharides upon hydrolysis.

Which of the following is a polysaccharide of plant origin?

Solution:

Cellulose is a polysaccharide found in plant cell walls.

Proteins are made up of:

Solution:

Proteins are composed of amino acids.

The bond that links amino acids in a protein is called:

Solution:

Amino acids in proteins are linked by peptide bonds.

What is the role of enzymes in biological systems?

Solution:

Enzymes act as catalysts to speed up biochemical reactions.

Which protein is responsible for transporting oxygen in the human body?

Solution:

Hemoglobin is the protein responsible for transporting oxygen in the blood.

Which of the following increases cholesterol levels in the body?

Solution:

Consumption of certain fats can increase cholesterol levels in the body.

What are the monomers of nucleic acids?

Solution:

Nucleic acids are made up of nucleotides.

What is the main function of DNA?

Solution:

DNA stores genetic information in living organisms.

What is the role of RNA?

Solution:

RNA plays a crucial role in decoding and expressing genetic information.

Which vitamins are water-soluble?

Solution:

Vitamins B complex and C are water-soluble vitamins.

Which of the following is not a carbohydrate component?

Carbohydrates are primarily composed of carbon, hydrogen, and oxygen. Nitrogen is not a component of carbohydrates but is found in proteins and nucleic acids.

What is the function of insulin in the body?

Insulin is a hormone that helps regulate blood glucose levels by enabling cells to take in glucose from the blood and use it for energy.

Which sugar is found in ripe fruits and honey?

Fructose is the sugar commonly found in ripe fruits and honey. It is a monosaccharide, like glucose, and is often referred to as fruit sugar.

Which of the following is a disaccharide?

A disaccharide is a sugar composed of two monosaccharides. Sucrose is a common disaccharide made of glucose and fructose.

What kind of bond links monosaccharides in oligosaccharides and polysaccharides?

Monosaccharides are linked together by glycosidic bonds to form oligosaccharides and polysaccharides.

Which carbohydrate is found in plants?

Cellulose is a structural carbohydrate found in the cell walls of plants. It is a polysaccharide consisting of a linear chain of glucose units.

Which carbohydrate is also known as animal starch?

Glycogen is known as animal starch because it serves as a form of energy storage in animals, similar to how starch does in plants.

Polysaccharides differ from monosaccharides because they are:

Polysaccharides are large molecules made of many monosaccharide units. They are generally insoluble in water and do not taste sweet.

Which of the following is not a use of carbohydrates?

Carbohydrates primarily serve as an energy source, maintain blood sugar levels, and provide structural support in organisms. They are not involved in protein synthesis.

What is the general structure of an amino acid?

The general structure of an amino acid includes an amino group (-NH₂), a carboxyl group (-COOH), and a side chain (R group) that is unique to each amino acid.

How many amino acids are found in nature?

There are 20 standard amino acids found in nature that serve as the building blocks of proteins.

Which amino acids can the human body synthesize?

The human body can synthesize non-essential amino acids. Essential amino acids must be obtained through the diet.

What type of bond links amino acids together in proteins?

Amino acids are linked together in proteins by peptide bonds, which form between the carboxyl group of one amino acid and the amino group of another.

A protein made of two amino acids is called a:

A protein made of two amino acids is called a dipeptide. The prefix "di-" indicates two.

Which of the following is not a source of protein?

Sugar is not a source of protein. It is a carbohydrate. Common sources of protein include beans, eggs, and cheese.

Which statement about enzymes is true?

Enzymes are proteins that act as catalysts to speed up chemical reactions in biological systems.

In which solvent are lipids easily soluble?

Lipids are soluble in organic solvents like Bloor's reagent, which is a mixture used to detect lipids. They are generally insoluble in water.

What is the main process used to convert vegetable oil into saturated fat (ghee)?

Hydrogenation is the process used to convert vegetable oils into saturated fats like ghee. This process involves adding hydrogen atoms to unsaturated fats.

What catalyst is used in the hydrogenation of vegetable oils?

Nickel is commonly used as a catalyst in the hydrogenation of vegetable oils to produce saturated fats.

What are the building blocks of lipids?

The building blocks of lipids are fatty acids and glycerol. Fatty acids are long hydrocarbon chains with a carboxyl group at one end.

Which of the following is a correct feature of fats?

Fats are typically solid at room temperature. They are mainly obtained from animal sources and are generally saturated fats.

What is true about oils compared to fats?

Oils are generally unsaturated compounds and are liquid at room temperature. They are mainly obtained from plant sources.

Which of the following is a plant source of lipids?

Coconut is a plant source of lipids. Cheese, salmon, and butter are animal sources.

Which vitamin is transported by lipids in the human body?

Lipids transport fat-soluble vitamins such as Vitamin A in the human body. Vitamin A is essential for vision, immune function, and reproduction.

Which of the following is not a use of lipids?

Lipids are used in cooking, making soaps and cosmetics, and can activate enzymes. However, they are not involved in the synthesis of hemoglobin, which is a protein.

Which sugar is found in DNA?

Deoxyribose is the sugar found in DNA. It is a pentose sugar and is a key component of the backbone of DNA molecules.

Who discovered the structure of DNA?

James Watson and Francis Crick discovered the double helix structure of DNA in 1953.

What shape does the DNA molecule form?

The DNA molecule forms a double helix shape, which consists of two long strands that twist around each other.

Which bases pair together in DNA?

In DNA, adenine pairs with thymine, and guanine pairs with cytosine. These pairings are due to the specific hydrogen bonding patterns between the bases.

What nitrogenous base is found in RNA but not in DNA?

Uracil is the nitrogenous base found in RNA but not in DNA. In DNA, thymine is used instead of uracil.

Which of the following is not a function of nucleic acids?

Nucleic acids are primarily involved in transmitting hereditary traits, controlling protein synthesis, and storing genetic information. Breaking down toxins in the liver is not a function of nucleic acids.

Which of the following is a water-soluble vitamin?

Vitamin C is a water-soluble vitamin, meaning it dissolves in water and is not stored in the body. It must be replenished regularly through diet.

What can excess Vitamin D cause?

Excess Vitamin D can lead to calcification, which is the abnormal deposition of calcium in the body's soft tissues, including the kidneys and blood vessels.

Which vitamin is known as the “sunshine vitamin”?

Vitamin D is known as the "sunshine vitamin" because it is produced in the skin in response to sunlight exposure.

Deficiency of which vitamin causes Beriberi?

Deficiency of Vitamin B1 (Thiamine) causes Beriberi, a disease affecting the cardiovascular and nervous systems.

What is the main function of Vitamin K in our body?

The main function of Vitamin K in the body is to help in blood clotting. It is essential for the synthesis of proteins that are involved in the coagulation process.

Which vitamin deficiency leads to scurvy?

Deficiency of Vitamin C leads to scurvy, a disease characterized by bleeding gums, skin sores, and fatigue.