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Which of the following elements is the backbone of organic molecules?
Carbon
What makes carbon ideal for forming complex organic molecules?
It forms up to four covalent bonds
Which of the following best describes a carbon skeleton?
A backbone of carbon atoms forming chains or rings
Which of the following hydrocarbons contains a triple bond?
Alkyne
What is an isomer?
A compound with the same molecular formula but different structures
Which type of isomer has the same connectivity of atoms but differs in spatial arrangement?
Geometric isomer
Which functional group is found in carboxylic acids and is acidic?
Carboxyl group (-COOH)
Which functional group is characteristic of esters?
-COO-
Amines contain which functional group?
-NH₂
Which of the following functional groups is involved in forming disulfide bonds in proteins?
Sulfhydryl (-SH)
Which functional group is involved in ATP and energy transfer?
Phosphate (-PO₄³⁻)
What is the monomer of carbohydrates?
Monosaccharide
Which macromolecule contains genetic information?
Nucleic acids
Which type of lipid is used for long-term energy storage?
Triglycerides
Which lipid is a major component of cell membranes?
Phospholipids
What type of lipid serves as a precursor for steroid hormones?
Cholesterol
The glycemic index measures:
How quickly a carbohydrate raises blood sugar
Which macromolecule is digested first for energy in the human body?
Carbohydrates
Which type of fat is considered the healthiest for heart health?
Unsaturated fats
