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WorksheetsB9A
Total questions: 12
Worksheet time: 24mins
B9A An advertisement for a health supplement for dogs claims to build lean muscle and strengthen tendons and ligaments, as well as provide energy. Which two biomolecules must the supplement contain to provide these benefits?
Carbohydrates and lipids
Proteins and carbohydrates
Nucleic acids and carbohydrates
B9A Two biomolecules are shown
Which of the following best describes these biomolecules?
Molecule X and Molecule Y are both carbohydrates
Molecule X is a nucleic acid, and Molecule Y is a carbohydrate .
Molecule X and Molecule Y are both nucleic acids
Molecule Xis a carbohydrate, and Molecule Y is a nucleic acid.
B9A 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?
B9A 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 below. 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
B9A Four different nucleotides are used as building blocks of DNA. Which of the following can be used to distinguish one nucleotide from another?
The nitrogenous base
The shape of the deoxyribose sugar
The length of the phosphate group
The type of fatty acid
B9A The complex carbohydrates pictured below are made by linking molecules of glucose. In all three complex carbohydrates, the subunits of glucose are bonded together differently.Because they have different structures, they most likely -
contain different chemical elements
form different proteins
carry different nucleotides
perform different functions
B9A A student preparing for a hike wants to pack a snack that has biomolecules that provide quickly available energy but few excess calories. Which nutrition label lists the best combination of biomolecules that provide quickly available energy while providing the fewest calories from other types of biomolecules?
B9A 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
B9A Carbohydrates are more easily metabolized than lipids. However, on a gram -for-gram basis lipids provide cells with more -
nitrogen
proteins
structure
energy
B9A Which of the following biomolecules typically contains both nitrogen and phosphate?
Lipid
Protein
Nucleic acid
Carbohydrate
B9A 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.
B9A Which of these best represent s a fatty-acid molecule?
