Molecular Biology EOC Review

Front

Cellular respiration is carried out by which of the following?

• all living organisms all of the time
• animals but not plants
• animals all of the time but plants only at night
• heterotrophs but not autotrophs

Back

all living organisms all of the time

Front

Which of the following processes release the most ATP per molecule of glucose for immediate cell use? aerobic respiration, anaerobic respiration, fermentation, photosynthesis

Back

aerobic respiration

Front

Which organic molecule is correctly matched with its function? Options: Nucleic acids provide structure for cell organelles, Lipids are a primary component of cell membranes, Proteins are the primary energy source during metabolism, Carbohydrates help store and transmit genetic information.

Back

Lipids are a primary component of cell membranes.

Front

Carbohydrates are broken down into smaller molecules for what purpose?

Back

to provide energy

Front

Enzymes are classified as which of the following biological organic compounds? carbohydrates, lipids, proteins, nucleic acids

Back

proteins

Front

Why are enzymes necessary for many cellular reactions?

Back

The reactions are too slow to meet the needs of the cell if enzymes are missing.

Front

Given the graph below, which statement best describes the role of enzymes? Options: More energy is released without the presence of enzymes, Less energy is needed to start a reaction when enzymes are present., A reaction is catalyzed by the lack of enzymes, The presence of enzymes causes reactions to occur at a slower rate.

Back

Less energy is needed to start a reaction when enzymes are present.

Front

In the making of a protein, the amino acid order is determined by which of the following? the amount of glucose present in the cell, the order of genes expressed in the chromosomes, the order of nitrogenous bases in DNA, the random addition of amino acids from the tRNA

Back

the order of nitrogenous bases in DNA

Front

Monomer for the molecule above?

Back

nucleotides

Front

Which statement best distinguishes aerobic from anaerobic respiration?

Back

Only aerobic respiration requires oxygen.