FREE AND STUDY GAMES ABOUT APBIO - UNIT 2 EXAM

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FREE AND STUDY GAMES ABOUT APBIO - UNIT 2 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

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-Guarantee passing score -47 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Which of the following describes the most likely relationship between transpiration and water intake in the plant?

Answer:

Transpiration from the leaves of the plant stimulates subsequent water intake by the roots of the plant.Question 2: Which of the following data would support the alternative hypothesis?

Answer:

Cells with mutated aquaporins exhibit turgor pressure and are hypertonic.Question 3: Based on information. which of the follwing is the most likely explanation for a buildup of cholesterol molecules in the blood of an animal?

Answer:

the animals body cells are defective in endocytosis Question 4: If ADH secretion is inhibited, which of the following would intitially result?

Answer:

The person would produce greater amounts of dilute urine.

Question 5: Which of the following claims is scientifically accurate and consisent with an observation that a decreases in lysosome production within a cell leads to a decline in mitochondria activity?

Answer:

Fewer lysosomes will be avaible to break down macromolecules to provide the necessary nutrients for cellular respiration.Question 6: Which statement best explains the orientation of the phospholipid molecules in this model?

Answer:

The hydrophilic phosphate groups of the phospholipid molecules are attracted to the aqueous internal and external environment.Question 7: Which statement best describes the effect on water transport across the cell membrane if the aquaporin in the figure cesaes to finction?

Answer:

Water molecules will still be able to move across the cell membrane but at a slower rate.Question 8: To model a plant cell, a permable, nonflexible case is placed around each piece of dialysis tubing. the greatest pressure potenial will develop within dialysis tube number.

Answer:

4 Question 9: Which of the following is most likely if an IV of distilled water is administered to a patient?

Answer:

The cells that are exposed to hypotonic solution will expand as water moves osmotically into the cells from the blood.Question 10: Which of the following is a scientific claim about how the structure of the mitochondria in muscle cells should be different than it is in other cells because of high energy demands of mitochondria?

Answer:

The inner membrane of the mitochondria in muscle cells should how more folds to increase the surface area, allowing more ATP to be synthesized.

Question 11: which of the following best predicts the effct of not having ATP available to supply energy to this process?

Answer:

H+ ions will stop moving throught the protein.Question 12: Which of the folllowing best explains how the extensive folding of the inner mitochondria membrane benefits a eukaryotic cell?

Answer:

It increases the area available for proteins involved in energy transfer.Question 13: Which of the following best describes the role fo the structure labeled Y?

Answer:

Structure Y is the location where proteins are synthesized Question 14: Which of the following outcomes will most likely result from a loss of ion pump function in the cell's lysosomes?

Answer:

The internal pH of the lysosomes will increase, which will prevent the activation of hydrolytic enzymes and interfere with the intracellular digeston of food.Question 15: Which investigation will help determine whether the new membrane protein is a channel protein involved in membrane transport?

Answer:

Add more of the proteins to the plasma membrane and measure the rate of the particle movement Question 16: Which of the following statements best explains the processes of passive and active transport?

Answer:

Passive transport is the net movement of substances down a concentration gradient that does not require metabolic energy. Active transport is the movement of substanes up a concentration gradient that requires energy.Question 17: Prokaryotic and eukaryotic cells generally have which of the following features in common?

Answer:

Ribosomes

Question 18: Which of the following best describes the numbered areas?

Answer:

Areas 1 and 3 are polar, since the membrane molecules are aligned with water molecules.Question 19: Which of the following scientific questions is most relevant to the model represented in the figure above?

Answer:

Which molecular substance is actively transported across the plasma membrane?Question 20: The active transport pump used to move sodium ions across the membranes of gill cells in a freshwater fish has each of the following characteristics EXCEPT:

Answer:

It uses osmosis to carry sodium ions into the cells.Question 21: Which of the following best summarizes an advantage of eukaryotic cells having internal membranes?

Answer:

Organells isolate specific reactions, increasing metabolic efficiency.Question 22: Which of the following observations would best support the alternative hypothesis described above?

Answer:

In both plant cells and fungal cells, the cell wall surround the outside of the cell memrbane.Question 23: Which of the following expirmental desgins will result in the fastest net rate of water movement in to chamber A?

Answer:

placeing salt water in chamber A and distilled water in chamber B Question 24: Which of the following best predicts which daigrammed microscope view the laboratory worker would see and best explains why?

Answer:

View 2 because the rate of water movenment into the RBC's equals the rate of water movenment out of the cells.