level 1
Which elements are found in all organic compounds?
a. Chlorine and sulfur
b. Carbon, hydrogen, and oxygen
c. Iron and zinc
d. Magnesium and potassium
Answer: b. Carbon, hydrogen, and oxygen
What is DNA's main function?
a. Breaking down food
b. Carrying genetic information
c. Storing energy
d. Building muscle
Answer: b. Carrying genetic information
How many different types of amino acids are there?
a. 5
b. 10
c. 15
d. 20
d.20
Which of the following is a polymer made of nucleotides? a. Protein
b. Carbohydrate
c. DNA
d. Lipid
Answer: c. DNA
Which lipid type is commonly found in butter and other dairy products?
a. Saturated lipid
b. Unsaturated lipid
c. Nucleic acid
d. Protein
Answer: a. Saturated lipid
What are biological molecules also known as?
a. Inorganic molecules
b. Amino acids
c. Organic compounds
d. Minerals
Answer: c. Organic compounds
What is the difference between saturated and unsaturated lipids?
a. Saturated lipids are solid, and unsaturated lipids are liquid at room temperature
b. Unsaturated lipids are solid, and saturated lipids are liquid
c. Both are always liquids
d. They are the same type of lipid
Answer: a. Saturated lipids are solid, and unsaturated lipids are liquid at room temperature
What type of molecule is used to build muscles and skin?
a. Carbohydrate
b. Lipid
c. Protein
d. Nucleic acid
Answer: c. Protein
What kind of lipid is olive oil an example of?
a. Saturated lipid
b. Unsaturated lipid
c. Wax
d. Carbohydrate
Answer: b. Unsaturated lipid
Amino acids link together to form which biological molecule?
a. Lipid
b. DNA
c. Protein
d. Carbohydrate
Answer: c. Protein
What are proteins made of?
a. Lipids
b. Carbohydrates
c. Amino acids
d. DNA
Answer: c. Amino acids
Which type of carbohydrate takes longer to break down and provides energy for a longer time?
a. Glucose
b. Starch
c. Sucrose
d. Fructose
Answer: b. Starch
Which molecule helps determine an organism's physical traits?
a. Carbohydrate
b. DNA
c. Lipid
d. Starch
Answer: b. DNA
Which molecule is responsible for forming enzymes that assist in digestion?
a. Carbohydrates
b. Lipids
c. Proteins
d. Nucleic acids
Answer: c. Proteins
What is the role of RNA in a cell?
a. Storing energy
b. Forming cell membranes
c. Helping to carry out genetic instructions
d. Providing structural support
Answer: c. Helping to carry out genetic instructions
What is the main function of enzymes?
a. Store energy
b. Speed up chemical reactions
c. Carry oxygen
d. Form cell membranes
Answer: b. Speed up chemical reactions
What molecule carries genetic instructions to cells?
a. RNA
b. Lipids
c. Protein
d. Carbohydrate
Answer: a. RNA
What is glucose classified as?
a. A complex lipid
b. A simple sugar
c. An amino acid
d. A nucleotide
Answer: b. A simple sugar
What element is found in all organic molecules?
a. Neon
b. Helium
c. Carbon
d. Sodium
Answer: c. Carbon
What type of molecule is essential for forming cell membranes?
a. Lipid
b. Protein
c. Carbohydrate
d. RNA
Answer: a. Lipid
Which molecule provides the body's primary source of energy?
a. Lipids
b. Proteins
c. Carbohydrates
d. DNA
Answer: c. Carbohydrates
What are lipids commonly used for in organisms?
a. Providing quick energy
b. Forming genetic material
c. Storing energy and building cell membranes
d. Forming enzymes
Answer: c. Storing energy and building cell membranes
Enzymes belong to which type of biological molecule?
a. Proteins
b. Lipids
c. Carbohydrates
d. Nucleic acids
Answer: a. Proteins
Starch is an example of which type of molecule?
a. Protein
b. Lipid
c. Carbohydrate
d. Nucleic acid
Answer: c. Carbohydrate
What kind of lipid is olive oil an example of?
a. Saturated lipid
b. Unsaturated lipid
c. Wax
d. Carbohydrate
Answer: b. Unsaturated lipid