Blue
Which biomolecule gives the body quick energy?
A. Protein
B. Lipid
C. Carbohydrate
D. Nucleic Acid
C. Carbohydrate
Which biomolecule helps build and repair muscles?
A. Carbohydrate
B. Lipid
C. Protein
D. Mineral
C. Protein
What does 'mono' in monosaccharide mean?
a. one
b. two
c. three
d. carbohydrate
a. one
Glucose, Maltose and Sucrose are examples of?
a. lipids
b. carbohydrates
c. proteins
d. nucleic acids
b. carbohydrates
Any molecules that are produced by a living organism such as proteins, lipids, nucleic acids, and carbohydrates.
Biomolecules
Which biomolecule is made up of sugar units called monosaccharides?
A. Lipids
B. Proteins
C. Carbohydrates
D. Vitamins
C. Carbohydrates
Which correctly matches the biomolecule and its monomer?
A. Carbohydrate – Amino acid
B. Protein – Nucleotide
C. Lipid – Glycerol and fatty acids
D. Nucleic Acid – Fatty acid
C. Lipid – Glycerol and fatty acids
The basic unit of nucleic acids is:
A. Amino acid
B. Monosaccharide
C. Fatty acid
D. Nucleotide
D. Nucleotide
DNA and RNA belong to which biomolecule group?
A. Carbohydrates
B. Lipids
C. Proteins
D. Nucleic Acids
D. Nucleic Acids
Which of the following is an example of a lipid?
A. Butter
B. Rice
C. Egg white
D. DNA
A. Butter
Which elements are mainly found in carbohydrates?
A. C, H, O
B. C, H, N
C. H, O, N
D. C, S, O
A. C, H, O
Which biomolecule contains phosphorus as part of its structure?
A. Lipid
B. Protein
C. Nucleic Acid
D. Carbohydrate
C. Nucleic Acid
What are the building blocks (monomers) of proteins?
A. Fatty acids
B. Amino acids
C. Nucleotides
D. Glucose
B. Amino acids
Enzymes are important because they:
A. Store genetic information
B. Form cell walls
C. Speed up chemical reactions
D. Store oxygen
C. Speed up chemical reactions
Which statement about lipids is TRUE?
A. They are soluble in water.
B. They contain nitrogen as a main element.
C. They are nonpolar and hydrophobic.
D. They are made of nucleotides.
C. They are nonpolar and hydrophobic.
What will most likely happen if enzymes in the body become denatured?
A. Chemical reactions speed up.
B. Genetic information changes.
C. Reactions slow down or stop.
D. Lipids dissolve in water.
C. Reactions slow down or stop.
Which of the following is a polysaccharide?
A. Glucose
B. Fructose
C. Starch
D. Amino acid
C. Starch
A food sample turned violet when tested with Biuret solution. This indicates the presence of:
A. Lipids
B. Proteins
C. Starch
D. Glucose
C. Starch
Why are carbohydrates important to living organisms?
A. They carry genetic instructions.
B. They act as catalysts.
C. They provide immediate energy.
D. They form hormones only.
C. They provide immediate energy.
Which of the following best explains why lipids store more energy than carbohydrates?
A. Lipids contain more oxygen atoms.
B. Lipids have more carbon-hydrogen bonds.
C. Lipids dissolve easily in water.
D. Lipids are smaller molecules.
B. Lipids have more carbon-hydrogen bonds.