Carbohydrates, Lipids And Proteins Flashcards
What are carbohydrates primarily made of?
Carbon, hydrogen, and oxygen.
True or False: Lipids are soluble in water.
False.
What is the monomer unit of proteins?
Amino acids.
Fill in the blank: The basic unit of carbohydrates is called a ________.
Monosaccharide.
Which type of lipid is used for long-term energy storage?
Triglycerides.
What type of bond links amino acids together?
Peptide bond.
Which carbohydrate is commonly known as table sugar?
Sucrose.
True or False: Phospholipids are a major component of cell membranes.
True.
What is the primary function of carbohydrates in living organisms?
To provide energy.
Multiple choice: Which of the following is a polysaccharide? A) Glucose B) Fructose C) Cellulose D) Sucrose
C) Cellulose.
What is the structural formula of a fatty acid?
R-COOH, where R is a hydrocarbon chain.
Fill in the blank: Glycogen is a storage form of glucose found in ________.
Animals.
True or False: Enzymes are proteins that catalyze biochemical reactions.
True.
What are the two main types of nucleic acids?
DNA and RNA.
Which element is found in proteins but not in carbohydrates or lipids?
Nitrogen.
Multiple choice: What type of carbohydrate is starch? A) Monosaccharide B) Disaccharide C) Polysaccharide D) Oligosaccharide
C) Polysaccharide.
What is the difference between saturated and unsaturated fats?
Saturated fats have no double bonds between carbon atoms, while unsaturated fats have one or more double bonds.
Fill in the blank: The process of breaking down glucose to release energy is called ________.
Cellular respiration.
True or False: All amino acids are identical in structure.
False.
What is the primary role of lipids in biological membranes?
To provide structural integrity and fluidity.
What are the two main categories of carbohydrates?
Simple carbohydrates and complex carbohydrates.
Multiple choice: Which of the following is NOT a function of proteins? A) Enzymatic activity B) Energy storage C) Structural support D) Transport
B) Energy storage.
What is the term for a carbohydrate made of two monosaccharides?
Disaccharide.
Fill in the blank: The backbone of a DNA molecule consists of alternating ________ and ________.
Sugar and phosphate.
