Practice Exam Answers

What do all cellular activities in living organisms use as a source of energy?

Which organelle can be compared to a security guard who decides whom may enter a building and whom may not?

Which process is the opposite of inbreeding?

Sublimation is the opposite of deposition just as evaporation is the opposite of

Which is not something that occurs in translation?

Which blood type could be given as a transfusion for patient with AB blood when the RH factor is unknown?

The concentration of sodium on the inside of the cell is 20 mM. The outside of the cell has a sodium concentration of 115 mM. Which mechanism of ion uptake would best move sodium from the inside of the cell to the outside?

Which accurately describes the relationship between cancer risk and exposure to mutagens?

Two cells in the same organism differ only in the number of chloroplasts they contain. The first cell has multiple chloroplasts, and the second cell has very few. What would most likely characterize these cells?

A plant that has round and yellow seeds (RrYy) is crossed with a plant that has round and yellow seeds (RrYy). What is the ratio of the offspring that will have round and yellow seeds? Key: R is equal to round r is equal to wrinkled Y is equal to yellow y is equal to green

Cystic fibrosis is a genetic disorder. It is a recessive trait that is determined by two alleles. Suppose two parents each carry at least one recessive allele, but neither of them has cystic fibrosis. Which statement reflects the likelihood of a child of these parents having cystic fibrosis?

A dietician examines the diet of a patient who is complaining that he is unable to build muscle mass. The patient eats mainly fresh fruits, vegetables, pasta, bread, and some fats and oils. Which type of supplement will the dietician most likely recommend?

Which statement best distinguishes the light-dependent (L-D) reactions from the light-independent (L-IND) reactions?

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. Which Punnett square represents the correct way to set up the cross RRYy times RrYY ?

A doctor suspects that one of her patients has a deficiency in one of the six key elements found in living organisms. He has low energy and extremely weak, soft bones. Based on this information alone, which nutrient supplement will she most likely prescribe?

The structure of DNA resembles a twisted ladder. Which structural components form the rungs of the ladder?

Jenna heard a family story about Great Grandfather Frederick who died of a lung disease, but no one knows which lung disease it was. How could a genetic counselor help Jenna?

Which best illustrates the result of the process of meiosis?

Which statement best describes the overall change that occurs as a result of mitosis?

Which structure will form when a primitive cell engulfs an aerobic bacterium?

Which flow chart correctly organizes the structures of heredity, from least to most complex?

Smooth muscle, which is a tissue made up of a type of specialized muscle cell, functions in which process?

How does a catalyst influence a chemical reaction?

Svetlana and her mother are very similar. Both have blonde hair, a love of scrapbooking, blue eyes, and a thin nose. Which statement most likely describes Svetlana’s traits?

By which process do plants obtain carbon from the atmosphere?

Which organ systems work together to help the body shiver in order to maintain homeostasis?

Which statement best describes the process of chemiosmosis and the direct result of its occurrence?

Which family members have red-green color blindness?