Campbell Biology: Themes In The Study Of Life
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All living things have a life and in biology we get to learn more about their life and life cycle. Do you think you know about the different processes that the living things go through? Take up the quiz below from Campbell biology on the study of life and find out.
Questions and Answers
- 1.
Prokaryotic and eukaryotic cells generally have which of the following features in common?
- A.
A membrane-bounded nucleus
- B.
A cell wall
- C.
Ribosomes
- D.
Linear chromosomes made of DNA and protein
Correct Answer
C. RibosomesExplanation
Prokaryotic and eukaryotic cells generally have ribosomes in common. Ribosomes are cellular structures responsible for protein synthesis. They can be found in both prokaryotic and eukaryotic cells, although there may be slight differences in their structure and function. Ribosomes play a crucial role in the translation of genetic information from DNA to protein, making them an essential feature in both types of cells.Rate this question:
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- 2.
A type of protein critical to all cells is organic catalysts called
- A.
Feedback activators
- B.
Feedback inhibitors
- C.
Enzymes
- D.
Nutrients
Correct Answer
C. EnzymesExplanation
Enzymes are a type of protein that act as organic catalysts in cells. They play a crucial role in speeding up biochemical reactions by lowering the activation energy required for the reaction to occur. Enzymes are involved in various cellular processes and are essential for the proper functioning of cells. Feedback activators and inhibitors are regulatory molecules that modulate the activity of enzymes, but they are not the main type of protein critical to all cells. Nutrients are essential for cell growth and function, but they are not specifically referred to as organic catalysts. Therefore, the correct answer is enzymes.Rate this question:
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- 3.
Prokaryotes are classified as belonging to two different domains. What are the domains?
- A.
Bacteria and eukarya
- B.
Bacteria and archea
- C.
Monera and bacteria
- D.
Archea and eukarya
Correct Answer
B. Bacteria and archeaExplanation
Prokaryotes, which are single-celled organisms without a nucleus, are classified into two different domains: bacteria and archaea. Bacteria are the most well-known and abundant prokaryotes, found in various environments. Archaea, on the other hand, are a distinct group of prokaryotes that can survive in extreme conditions such as hot springs, salt lakes, and deep-sea hydrothermal vents. Both bacteria and archaea have fundamental differences in their genetic makeup and cellular structures, leading to their classification into separate domains.Rate this question:
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- 4.
When blood glucose level rises, the pancreas secretes insulin, and as a result blood glucose level declines. When blood glucose level is low, the pancreas secretes glucagon, and as a result blood glucose level rises. This type of regulation is called
- A.
Catalytic feed back
- B.
Negative feedback
- C.
Positive feedback
- D.
Bioinformatics
Correct Answer
B. Negative feedbackExplanation
When blood glucose level rises, the pancreas secretes insulin, which helps to lower the blood glucose level. This action of insulin counteracts the initial increase in blood glucose, resulting in a decline in blood glucose level. Similarly, when blood glucose level is low, the pancreas secretes glucagon, which helps to raise the blood glucose level. This action of glucagon counteracts the initial decrease in blood glucose, resulting in an increase in blood glucose level. This type of regulation, where the response opposes the initial stimulus, is known as negative feedback.Rate this question:
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- 5.
Which of the following is/are true of natural selection?
- A.
Requires genetic variation
- B.
Results in descent with modification
- C.
Involves differential reprotductive success
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Natural selection is a process that leads to the evolution of species over time. It requires genetic variation because without variation in the traits of individuals, there would be no basis for selection to occur. It results in descent with modification because over generations, the traits that are advantageous for survival and reproduction become more common in a population. It involves differential reproductive success because individuals with traits that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to future generations. Therefore, all of the given statements are true of natural selection.Rate this question:
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- 6.
Which of these provides evidence of the common ancestry of all life?
- A.
The ubiquitious use of catalysts by living systems
- B.
The universality of the genetic code
- C.
The structure of chloroplasts
- D.
The structure of cilia
Correct Answer
B. The universality of the genetic codeExplanation
The universality of the genetic code provides evidence of the common ancestry of all life. The genetic code is the set of rules by which information encoded within DNA or RNA is translated into proteins. The fact that all organisms, from bacteria to plants to animals, use the same genetic code suggests a shared evolutionary history. This indicates that all life on Earth has a common ancestor from which the genetic code was inherited and has been conserved throughout evolution.Rate this question:
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- 7.
What is a hypothesis?
- A.
An unproven theory
- B.
A tentative explaination that can be tested and is falsifiable
- C.
A fact based on qualitative data
- D.
A fact based on quantitiative data
Correct Answer
B. A tentative explaination that can be tested and is falsifiableExplanation
A hypothesis is a tentative explanation that can be tested and is falsifiable. It is a proposed explanation or prediction for a phenomenon or observed event that can be tested through experimentation or further investigation. A hypothesis is not yet proven but can be tested and potentially proven or disproven based on evidence and data. This allows for the scientific method to be applied, where hypotheses are tested and either supported or rejected based on the results of experiments or observations.Rate this question:
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- 8.
Darwin presented verifiable evidence that supported the view that life can arise by spontaneous generation.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Darwin did not present verifiable evidence that supported the view that life can arise by spontaneous generation. In fact, his theory of evolution through natural selection proposed that life evolves from pre-existing life forms through a gradual process of adaptation and survival of the fittest. Spontaneous generation, on the other hand, is the outdated belief that living organisms can arise from non-living matter. Therefore, the statement is false.Rate this question:
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- 9.
Discovery science uses inductive reasoning to derive generalizations from a large number of specific observations
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Discovery science is a branch of science that focuses on making observations, collecting data, and deriving generalizations or patterns from that data. It relies on inductive reasoning, which involves drawing conclusions based on specific observations and extrapolating them to form general principles or theories. By examining a large number of specific observations, scientists can identify patterns and make generalizations about the natural world. Therefore, the statement that discovery science uses inductive reasoning to derive generalizations from a large number of specific observations is true.Rate this question:
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- 10.
Which of the following properties or processes do we associate with living things?
- A.
Evolutionary adaptations
- B.
Energy processing
- C.
Responding to the environment
- D.
Growth and reproduction
- E.
All of the above
Correct Answer
E. All of the aboveExplanation
All of the properties and processes listed, including evolutionary adaptations, energy processing, responding to the environment, and growth and reproduction, are associated with living things. Living organisms have the ability to adapt to their environment over time through evolution, they process energy to sustain themselves, they respond to stimuli in their environment, and they grow and reproduce to ensure the continuation of their species. Therefore, all of the options mentioned are correct in relation to living things.Rate this question:
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- 11.
Which of the following is NOT a theme that unifies biology?
- A.
Interaction with the environment
- B.
Emergent properties
- C.
Evolution
- D.
Reductionism
Correct Answer
D. ReductionismExplanation
Reductionism is not a theme that unifies biology because it focuses on breaking down complex systems into simpler components to understand them. Biology, on the other hand, emphasizes the study of living organisms as a whole, considering the interactions between different levels of organization. The other options, interaction with the environment, emergent properties, and evolution, all contribute to the understanding of biology by highlighting the importance of environmental interactions, the emergence of new properties in complex systems, and the role of evolutionary processes in shaping life.Rate this question:
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- 12.
A localized group of organisms that belong to the same species is called a
- A.
Biosystem
- B.
Community
- C.
Population
- D.
Ecosystem
Correct Answer
C. PopulationExplanation
A localized group of organisms that belong to the same species is called a population. This refers to a specific group of individuals of the same species that live in the same area and can potentially interbreed. Populations are important units of study in ecology and evolutionary biology as they help us understand how individuals within a species interact with each other and their environment.Rate this question:
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- 13.
The main source of energy for producers in an ecosystem is
- A.
Light energy
- B.
Kinetic energy
- C.
Thermal energy
- D.
ATP
Correct Answer
A. Light energyExplanation
Producers in an ecosystem, such as plants, use a process called photosynthesis to convert light energy into chemical energy in the form of glucose. This chemical energy is then used by the producers to carry out various metabolic activities and growth. Therefore, the main source of energy for producers in an ecosystem is light energy.Rate this question:
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Mar 21, 2023Quiz Edited by
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Jan 10, 2012Quiz Created by
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