Eoi Review For Pre-AP Biology
This is from the Diagnostic Test A, Part 1. I've only copied these questions so that I can answer them without looking at the answers listed on my original test paper.
Questions and Answers
- 1.
If you see the symbol of a skull and crossbones on a bottle in a laboratory experiment, you are being advised that you are
- A.
Not to touch an electrical outlet with wet hands
- B.
Working with chemicals that could be hazardous
- C.
To notify your teacher if you taste a poisonous chemical
- D.
Not to work with animals of any kind
Correct Answer
B. Working with chemicals that could be hazardousExplanation
The symbol of a skull and crossbones is commonly used to indicate the presence of toxic or hazardous substances. In a laboratory experiment, seeing this symbol on a bottle would serve as a warning that the chemicals inside could be dangerous and pose a risk to the person handling them. It is important to take precautions and follow safety protocols when working with such substances to avoid any potential harm or accidents.Rate this question:
-
- 2.
The process of science starts with
- A.
A hypothesis
- B.
A conclusion
- C.
An observation
- D.
A theory
Correct Answer
C. An observationExplanation
The process of science begins with an observation because observations are the initial step in gathering information and identifying patterns or phenomena that need to be explained. Observations serve as the foundation for formulating hypotheses, which are educated guesses or predictions about the cause or explanation of the observed phenomenon. From there, scientists can conduct experiments or gather further evidence to test their hypotheses and ultimately develop theories that provide a comprehensive explanation for the observed phenomena.Rate this question:
-
- 3.
If you are using a light microscope to observe a stained slide, you are using a
- A.
Compound microscope
- B.
Phase contrast microscope
- C.
Nomarski microscope
- D.
Dark field microscope
Correct Answer
A. Compound microscopeExplanation
A compound microscope is used to observe stained slides under a light microscope. This type of microscope uses multiple lenses to magnify the image of the specimen. Staining the slide helps to enhance the contrast and visibility of the specimen. Phase contrast, Nomarski, and dark field microscopes are specialized types of light microscopes that are used for specific purposes, such as observing living cells or studying transparent specimens. Therefore, the correct answer is a compound microscope.Rate this question:
-
- 4.
All types of living things do each of the following except
- A.
Grow and develop
- B.
Reproduce
- C.
Destroy the environment
- D.
Respond to stimuli
Correct Answer
C. Destroy the environmentExplanation
Living things do not destroy the environment. They are a part of the environment and interact with it, but they do not intentionally cause harm or damage to it. Instead, living things are dependent on the environment for their survival and often have adaptations that allow them to live in harmony with their surroundings. Destruction of the environment is typically caused by human activities or natural disasters, not by the inherent nature of living organisms.Rate this question:
-
- 5.
Lucie wanted to confirm the statement that pepsin is needed in addition to hydrochloric acid to digest protein in the stomach. He placed equal-sized pieces of egg white (protein) and equal amounts of diluted hydrochloric acid in each of 4 test tubes. Then he added a pinch of pepsin to test tubes C and D. He placed all 4 test tubes in a warm place overnight. The next day, two of the test tubes were milky white. What is the variable in the experiment described here?
- A.
Location of the tubes
- B.
Concentration of hydrochloric acid
- C.
Size of the egg whites
- D.
Presence of pepsin
Correct Answer
D. Presence of pepsinExplanation
In this experiment, Lucie is investigating the role of pepsin in digesting protein in the stomach. The variable being tested is the presence of pepsin. Test tubes C and D were the ones that had pepsin added to them, while the other test tubes did not have pepsin. The fact that only two of the test tubes turned milky white suggests that the presence of pepsin is necessary for the digestion of protein, as the test tubes without pepsin did not show the same result. Therefore, the variable in this experiment is the presence of pepsin.Rate this question:
-
- 6.
The most abundant compound in living things is
- A.
Water
- B.
Carbon dioxide
- C.
Sodium chloride
- D.
Sugar
Correct Answer
A. WaterExplanation
Water is the most abundant compound in living things because it plays a crucial role in various biological processes. It is a universal solvent, facilitating chemical reactions and transportation of nutrients and waste products within cells. Water also helps regulate temperature through sweating and evaporation. Additionally, it provides structural support and lubrication to tissues and organs. Its abundance in living organisms is due to its unique properties, such as high polarity, cohesion, and surface tension, which make it essential for life.Rate this question:
-
- 7.
Each of the following is a major role of lipids in living organisms EXCEPT the
- A.
Storage of energy
- B.
Movement of cells
- C.
Action as chemical messengers
- D.
Formation of biological membranes
Correct Answer
B. Movement of cellsExplanation
Lipids play a major role in living organisms by serving as a source of stored energy, forming biological membranes, and acting as chemical messengers. However, lipids do not directly contribute to the movement of cells. Cell movement is primarily facilitated by other components such as proteins and cytoskeleton elements. Therefore, movement of cells is not a major role of lipids in living organisms.Rate this question:
-
- 8.
Enzymes are NOT important in
- A.
Regulating chemical pathways
- B.
Transferring information
- C.
Releasing energy
- D.
Determining the pH of a substance
Correct Answer
D. Determining the pH of a substanceExplanation
Enzymes are biological catalysts that play a crucial role in regulating chemical pathways, transferring information, and releasing energy. However, determining the pH of a substance is not one of their functions. pH determination is typically done using indicators or pH meters, which measure the concentration of hydrogen ions in a solution. Enzymes do not directly influence or participate in this process.Rate this question:
-
- 9.
The energy levels surrounding the nucleus of an atom contain
- A.
Protons
- B.
Neutrons
- C.
Electrons
- D.
Ions
Correct Answer
C. ElectronsExplanation
The energy levels surrounding the nucleus of an atom contain electrons. Electrons are negatively charged particles that orbit the nucleus in specific energy levels or shells. These energy levels determine the electron's distance from the nucleus and its energy. Electrons play a crucial role in chemical reactions and bonding, as they are involved in the sharing, transfer, or attraction of electrons between atoms.Rate this question:
-
- 10.
A covalent bond is formed by
- A.
Sharing electrons
- B.
Transferring electrons
- C.
Losing electrons
- D.
Gaining electrons
Correct Answer
A. Sharing electronsExplanation
A covalent bond is formed by sharing electrons between two atoms. In this type of bond, the outermost electrons of the atoms are shared, allowing both atoms to achieve a more stable electron configuration. This sharing of electrons creates a strong bond between the atoms, resulting in the formation of a molecule.Rate this question:
-
- 11.
Primary consumers are also known as
- A.
Carnivores
- B.
Decomposers
- C.
Herbivores
- D.
Scavengers
Correct Answer
C. HerbivoresExplanation
Primary consumers are organisms that feed on plants and other autotrophs, obtaining their energy directly from the producers in an ecosystem. This means that they are herbivores, as they primarily consume plant material. Carnivores are organisms that feed on other animals, decomposers break down dead organic matter, and scavengers consume dead animals. Therefore, the correct answer is herbivores.Rate this question:
-
- 12.
Energy flows through an ecosystem from the sun to
- A.
Producers and then consumers
- B.
Consumers and then producers
- C.
Primary consumers
- D.
Secondary consumers
Correct Answer
A. Producers and then consumersExplanation
Energy flows through an ecosystem from the sun to producers and then to consumers. This is because producers, such as plants, use sunlight to convert it into chemical energy through photosynthesis. This energy is then passed on to consumers, such as herbivores, which eat the producers. Consumers further transfer this energy to other consumers in the food chain, such as carnivores or omnivores. Therefore, the flow of energy starts with producers and then moves to consumers in an ecosystem.Rate this question:
-
- 13.
Nutrients move through the biosphere in nutrient or
- A.
Carbon cycles
- B.
Nitrogen cycles
- C.
Biogeochemical cycles
- D.
Water cycles
Correct Answer
C. Biogeochemical cyclesExplanation
Biogeochemical cycles refer to the movement of nutrients through the biosphere, involving both living organisms and the physical environment. These cycles include the carbon cycle, nitrogen cycle, and water cycle, among others. In these cycles, nutrients are taken up by organisms, transferred through food chains, released back into the environment through decomposition, and eventually recycled. This process is essential for maintaining the balance of nutrients in ecosystems and ensuring the availability of essential elements for all living organisms.Rate this question:
-
- 14.
Earth's biosphere includes
- A.
All life and organic matter in the oceans
- B.
All life and organic matter in soil and on land
- C.
All life and organic matter in the atmosphere
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
The correct answer is "all of the above." The Earth's biosphere encompasses all life and organic matter in the oceans, soil and on land, as well as in the atmosphere. This includes all living organisms, such as plants, animals, and microorganisms, as well as dead organic matter that contributes to the nutrient cycle and supports life. The biosphere is a complex interconnected system where all these components interact and depend on each other for survival and sustenance.Rate this question:
-
- 15.
What has mass and occupies space?
Correct Answer
MatterExplanation
Matter is the correct answer because it refers to anything that has mass and occupies space. It encompasses all physical substances and materials that we can perceive and interact with. Matter can exist in various forms such as solids, liquids, and gases, and it is the fundamental building block of the universe.Rate this question:
- 16.
Parasitism is a type of
- A.
Commensalism
- B.
Mutualism
- C.
Symbiosis
- D.
Predation
Correct Answer
C. SymbiosisExplanation
Symbiosis refers to a close and long-term interaction between two different species, where at least one species benefits. Parasitism is a type of symbiosis where one species, the parasite, benefits at the expense of the other species, the host. This relationship is characterized by the parasite relying on the host for resources, such as food or shelter, while causing harm or damage to the host. Therefore, symbiosis is the correct answer as it encompasses the concept of parasitism within its definition.Rate this question:
-
- 17.
The end result of ecological succession is usually
- A.
A climax community
- B.
An unstable community
- C.
An aquatic biome
- D.
A land biome
Correct Answer
A. A climax communityExplanation
Ecological succession refers to the process of change in the structure and composition of an ecological community over time. It involves a series of stages, starting from a disturbed or barren area, leading to the establishment of a stable and diverse community. The final stage of ecological succession, known as the climax community, represents a state of equilibrium where the community has reached its fullest potential and is able to sustain itself. Therefore, the end result of ecological succession is usually a climax community.Rate this question:
-
- 18.
The biome that is dominated by coniferous forests and that is inhabited by wolves, black bears, and elk is the
- A.
Tundra
- B.
Grassland
- C.
Taiga
- D.
Temperate deciduous forest
Correct Answer
C. TaigaExplanation
The correct answer is taiga. The taiga biome is characterized by cold climates and dominated by coniferous forests, such as pine, spruce, and fir trees. It is also home to various animal species, including wolves, black bears, and elk. The tundra biome is characterized by low temperatures and a lack of trees, while grasslands are dominated by grasses and have a different set of animal species. Temperate deciduous forests have a different mix of tree species and animal inhabitants compared to the taiga biome.Rate this question:
-
- 19.
The distinct zones of the ocean depend upon
- A.
Distance from shore and temperature
- B.
Distance from shore and depth
- C.
Temperature and types of organisms
- D.
Types of organisms and distance from shore
Correct Answer
B. Distance from shore and depthExplanation
The distinct zones of the ocean depend on the distance from shore and depth. This is because as you move further away from the shore, the depth of the ocean increases, leading to different environmental conditions. Different depths have different amounts of sunlight, pressure, and temperature, which in turn affect the types of organisms that can survive in each zone. Therefore, both distance from shore and depth play a crucial role in determining the distinct zones of the ocean.Rate this question:
-
- 20.
The typical weather pattern in an area over a long period of time is called
- A.
Climate
- B.
Precipitation
- C.
The water cycle
- D.
Weather
Correct Answer
A. ClimateExplanation
Climate refers to the typical weather pattern in an area over a long period of time. It is determined by factors such as temperature, humidity, precipitation, wind patterns, and atmospheric pressure. Climate is different from weather, which refers to the short-term conditions of the atmosphere at a specific time and place. Precipitation refers to the process of water falling from the atmosphere to the Earth's surface, while the water cycle is the continuous movement of water on, above, and below the Earth's surface.Rate this question:
-
- 21.
The various growth phases through which most populations go are represented on
- A.
A logistic growth curve
- B.
An exponential growth curve
- C.
A normal growth curve
- D.
A boom and bust curve
Correct Answer
A. A logistic growth curveExplanation
The correct answer is a logistic growth curve. A logistic growth curve represents the various growth phases that most populations go through. It starts with a slow initial growth phase, then transitions into a rapid exponential growth phase, and finally reaches a stable phase where the population size levels off due to limited resources. This curve is commonly used to model population growth and is characterized by an S-shaped curve.Rate this question:
-
- 22.
Exponential growth is the phase in which a population
- A.
Reaches a carrying capacity
- B.
Grows quickly and few animals die
- C.
Growth begins to slow down
- D.
Growth stops
Correct Answer
B. Grows quickly and few animals dieExplanation
Exponential growth is a phase in which a population grows quickly and few animals die. This means that the population is increasing rapidly and there are minimal deaths occurring within the population. As a result, the population continues to expand at an accelerated rate. However, it is important to note that this phase will eventually reach a carrying capacity, at which point the growth will begin to slow down and eventually stop.Rate this question:
-
Back to top