EOC practice item sampler 2

The enzyme catalase is involved in the breakdown of hydrogen peroxide, H₂O₂, into water and oxygen. During this reaction ,the catalase

• is ultimately unchanged

• is used up entirely

• is changed into the product

• transforms into a new enzyme

Which set of chromosomes represents a mutation?

• 2

• 16

• 21

• 23

During the first process of protein synthesis, a section of the DNA molecule is copied directly into which other molecule?

• ribosomal RNA

• cytoplasmic DNA

• messenger RNA

• transfer RNA

Which statement best describes the interdependence of photosynthesis and cellular respiration?

• the products of photosynthesis are carbon dioxide and water to be used in cellular respiration

• the reactants of photosynthesis are the products of cellular respiration

• the reactants of photosynthesis are sugar and oxygen to be used in cellular respiration

• the products of photosynthesis are the same as the products of cellular respiration

What would most likely result if a waterborne bacteria caused the death of most of the minnow population?

• a decrease in both algae and zooplankton population

• increase in both zooplankton and perch population

• increase in both perch and hawk population

• decrease in both perch and hawk population

The physical differences among the fish are most likely

• a swimming adaptation due to water temperature

• a feeding adaptation due to competition for food

• an osmotic adaptation due to salinity levels

• a respiration adaptation to due different dissolved oxygen levels

Which organism receives the least amount of energy from the producer?

• whales

• seals

• herring

• krill

The markers found on the surface of RBCs that allow us to type blood as A, B, O or AB are called antigens.

Antigens are composed primarily of amino acids. In which class of biomolecules would antigens belong?

• nucleic acids

• carbohydrates

• lipids

• proteins

In the image, blood type AB and OO are crossed. What percent of the offspring have the possibility of inheriting blood type O?

• 0%

• 25%

• 50%

• 100%

Based on the classification, which two birds are most closely related?

• Western Bluebird and Ovenbird

• Eastern Bluebird and Robin

• Western Kingbird and Eastern Bluebird

• Robin and Ovenbird