Day 4 STAAR Review- Biomolecules and Enzymes

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

• proteins

• lipids

• nucleic acids

• complex carbohydrates

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.

Most plant leaves take in more carbon dioxide as light increases. They give off carbon dioxide if light intensity is too low. The graph shows a plant’s carbon dioxide levels at different light intensities.

At point X, the rate of which process is equal to the rate of photosynthesis?

• Cellular respiration

• Transpiration

• Growth

• Reproduction

Which biomolecule contains pastas and breads?

• Lipid
• Protein
• Nucleic Acid
• Carbohydrate

Which biomolecule helps form body structures like muscles?

• Nucleic Acid
• Carbohydrate
• Protein
• Lipids

Tags

NGSS.HS-LS1-1

Which biomolecule is responsible for insulation and long term energy storage?

• Protein
• Nucleic Acid
• Lipid
• Carbohydrate

Which biomolecule includes sugars, cellulose and starch?

• Lipids
• Proteins
• Carbohydrates
• Nucleic Acid

Tags

NGSS.MS-LS1-7

Which biomolecule is made of the monomer amino acids?

• Nucleic Acid
• Carbohydrate
• Protein
• Lipid

Which biomolecule contains fats, oils, and waxes?

• Proteins
• Nucleic Acid
• Lipids
• Carbohydrate

What do monomers do?

• Bond to make a polymer
• Create essential proteins
• Stores energy
• Splits to make more cells