biological molecules Flashcards
(15 cards)
What are biological molecules?
Biological molecules are organic compounds that are essential for life, including carbohydrates, proteins, lipids, and nucleic acids.
True or False: Proteins are made up of amino acids.
True
Fill in the blank: The basic building blocks of carbohydrates are __________.
monosaccharides
What is the primary function of lipids in biological systems?
Lipids serve as energy storage, structural components of cell membranes, and signaling molecules.
Which type of biological molecule includes enzymes?
Proteins
Multiple Choice: Which of the following is NOT a carbohydrate? A) Glucose B) Cellulose C) DNA D) Glycogen
C) DNA
What is the structure of DNA?
DNA is a double helix composed of two strands of nucleotides, with a sugar-phosphate backbone and nitrogenous bases.
True or False: Lipids are soluble in water.
False
Fill in the blank: The sequence of __________ in proteins determines their function.
amino acids
What is the role of nucleic acids in cells?
Nucleic acids, such as DNA and RNA, store and transmit genetic information.
Multiple Choice: Which of the following is a function of carbohydrates? A) Energy storage B) Catalysis C) Genetic information D) Insulation
A) Energy storage
What are triglycerides?
Triglycerides are a type of lipid formed from glycerol and three fatty acids, primarily used for energy storage.
True or False: All proteins are enzymes.
False
Fill in the blank: The primary structure of a protein is determined by its __________.
amino acid sequence
What is the main difference between RNA and DNA?
RNA is usually single-stranded and contains uracil instead of thymine, while DNA is double-stranded and contains thymine.
