Biology EOC Prep - Biomolecules

Which biomolecule is made of nucleotides and contain you DNA?

• Carbohydrate
• Lipids
• Protein
• Nucleic Acid

Enzymes are proteins that help increase the rate of chemical reactions inside cells. Which of the following suggests that the shape of an enzyme determines the enzyme’s function?

• Enzymes are specific to a substrate. 
• Enzymes can be found in all life-forms. 
• Enzymes operate in a wide range of conditions.
• Enzymes are activated by neighboring molecules.

Proteins and polysaccharides are polymers. These polymers are formed by dehydration synthesis. Which statement correctly identifies a difference in the structure of proteins and polysaccharides?

• Only polysaccharides are comprised of repeating units of cytosine, adenine, guanine, and thymine.
• Only proteins are formed from amino acids joined by peptide bonds.
• Only polysaccharides can be folded and twisted to very specific shapes.
• Only proteins can be large molecules with thousands of subunits.

The complex carbohydrates pictured are made by linking molecules of glucose. The carbohydrates have different structures because-

• they contain different chemical elements
• they form different proteins
• they carry different nucleotides
• they perform different functions

Tags

NGSS.HS-LS1-6

Carbohydrates are more easily metabolized than lipids. However, on a gram-for-gram basis lipids provide cells with more-

• nitrogen
• proteins
• structure
• energy

Tags

NGSS.HS-LS1-7

Which of the following biomolecules typically contains nitrogen and phosphate?

• lipid
• protein
• nucleic acid
• carbohydrate

Which of the following is a function of carbohydrates?

• Insulation
• Movement
• Main energy source
• Metabolism

The differences between two molecules include the type of sugar that forms a section of the molecules and the identity of one of four nitrogenous bases that make up another section of the molecules. These two molecules are

• Proteins
• Lipids
• Nucleic acids
• Carbohydrates

Students were given a list of seven elements and asked to identify the four elements that are most abundant in biomolecules. Which table correctly identifies the four most-abundant elements in biomolecules?

• 
• 
• 
• 

Tags

NGSS.HS-LS1-6

Proteins and carbohydrates have many functions in the body of an organism. Specific proteins and carbohydrates perform specific tasks. Information about a protein and a carbohydrate is given above. How are ferritin and glycogen similar in their primary functions for an organism?

• Both store materials needed by the organism.

• Both store energy used by the organism.

• Both support the structure of the organism.

• Both store information for the organism.