FREE AND STUDY GAMES ABOUT BIOLOGY EXAM EXAM

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FREE AND STUDY GAMES ABOUT BIOLOGY EXAM EXAM

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-Guarantee passing score -70 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: there are a great number of factors that can have an impact on the rate of growth of a population. What factors could create the population growth illustrated in this graph of population vs. time?

Answer:

a population newly introduced to an area, showing moderate birth rates, which has not yet fully utilized the resources in its new habitat Question 2: which process involves the movement of molecules across the plasma membrane from areas of high to low concentration without any assistance or energy from the cell?

Answer:

diffusion Question 3: Which statement best describes the role of the plasma membrane in osmosis?

Answer:

it is permeable to water molecules so they can diffuse freely into and out of the cell.

Question 4: the table describes two chemical reactions that take place only in certain autotrophic organisms. Which statement describes the relationship between the two chemical reactions?

Answer:

reaction A takes place first because its products are needed for Reaction B.Question 5: A student observes four cells under a microscope. The table summarizes the presence of structures in each cell.Which cell is most likely a eukaryotic cell?

Answer:

cell y Question 6: The diagram shows a simple grassland food web. The populations of which organisms would be directly affected by a sudden decrease in the populations of grasshoppers and butterflies in the food web?

Answer:

frogs and thrushes Question 7: research provides evidence that the HIV virus requires a host to carry out its metabolic activities. Which evidence supports that the HIV virus is nonliving?

Answer:

it lacks food-producing or energy-producing cell organelles.Question 8: Students conducted an experiment to determine if water temperature affects the rate of photosynthesis in pondweed. They collected the data shown in the table. Which conclusion can be defended based upon this data?

Answer:

Photosynthesis in pondweed is at its highest rate of productivity at 30

• o

Question 9: the diagram shows a model that represents steps during the process of enzyme activity. Which statement is true about the model?

Answer:

m and N represent the substrates, and T represents the enzyme.

Question 10: Which statement is an accurate comparison of aerobic and anaerobic respiration in humans?

Answer:

aerobic respiration occurs in the cytoplasm and mitochondria, whereas anaerobic respiration occurs only in the cytoplasm Question 11: analyze the river food web to answer the question. Which organism would be affected the most if pollution killed off the freshwater shrimp population?

Answer:

leech Question 12: to study photosynthesis in plants, students subject an elodea plant to different light intensities and record the number of oxygen bubbles produced per minute. Based on the observations, the students conclude that light is essential for photosynthesis.

Answer:

the rate of photosynthesis increases as light intensity increases up to a specific intensity.Question 13: Mary hypothesizes that the enzyme X is inhibited at pH levels of 8.0 and higher.She designs an experiment to verify her hypothesis. What mustbe a part of this experiment's design?

Answer:

measuring the activity of enzyme X at pH levels 7.0, 8.0, 9.0, and 10.0 Question 14: Which process describes the energy transformation that takes place during photosynthesis?

Answer:

conversion of light energy to chemical energy Question 15: Which statement about the light-dependent reactions of photosynthesis is correct?

Answer:

carbon dioxide is a reactant, and oxygen is a product.Question 16: A Venn diagram can be used to compare and contrast a prokaryote with a virus.Which characteristics should be placed in sections F and G of the Venn diagram?

Answer:

F: reproduces independently; G: contain genetic material

Question 17: A molecule is transported by both active and passive transport within a cell. The presence of which other molecule distinguishes active transport from passive transport?

Answer:

ATP Question 18: A student places a cell with an initial 5% salt concentration into a solution with a 50% salt concentration. What is most likely to happen and why?

Answer:

water will move out of the cell because there is more water inside the cell than outside.

Question 19: Membrane-bound organelles would be found in which type of cells?

Answer:

eukarotic cells only Question 20: The sunfish population in a local lake was monitored over several years. What limiting factor is most likely responsible for the change occurring at Point X in the graph?

Answer:

decreased food supply

Question 21: Which statement best describes cellular respiration?

Answer:

it is the conversion of food energy into a more usable form.Question 22: examine the food web to answer the question. If disease rapidly kills off the rabbit and deer populations, what will most likely happen to the mountain lion population?

Answer:

it will decrease because they will compete with hawks for snakes and shrews.Question 23: When athletes run long distances, their muscles become fatigued due to a lack of oxygen. Which process helps athletes generate more energy to continue running?

Answer:

anaerobic respiration