Chancho Aba geda secondary school Biology Grade 11 Unit one practical questions ,2024

1:Which of the following practices is inspired by observing nature and is used in architecture and engineering?
A) Urban design B) Industrialization C) Bio mimicry D) Biotechnology
2:What is the term for the study of how living organisms adapt to their natural environments?
A) Ecology B) Evolution C) Biophysics D) Ethology
3)Which of the following technologies is primarily used for gene editing in biological research?
A) Polymerase Chain Reaction (PCR) C) Electrophoresis
B) CRISPR-Cas9 D) Gel Filtration Chromatography
4)What is the main application of bioremediation technology in environmental biology?
A) Enhancing soil fertility C) Cleaning up polluted environments
B) Restoring habitats D) Increasing crop yields
5.Which application uses biological principles to develop new medical therapy ?
A) Synthetic Biology C) Bioinformatics
B) Biopharmaceuticals D) Environmental Biology
6.What technology utilizes living cells to produce biofuels from organic materials?
A) Fermentation B) Genetic Sequencing C) Nanotechnology D) Cloning
7.Which field of study employs both biology and computer technology to analyze complex biological data?
A) Biochemical. B) Microbiology C) Bioinformatics D) Biophysics
8.What is biotechnology primarily used for in medicine?
A) To create synthetic materials C) To develop vaccines and treatments
B) To enhance agricultural productivity D) To analyze geological formations
9.Which of the following is a significant consequence of biodiversity loss in ecosystems?
A) Increased resilience of ecosystems
B) Greater availability of resources
C) Disruption of food chains and ecosystem services D) Enhanced climate regulation

10.How does genetic modification of crops primarily benefit society?

A) It reduces the number of plant species C) It eliminates the need for farming
B) It increases crop yields and resilience to pests D) It decreases food production efficiency
11.How has the study of genetics influenced social issues?
A) By promoting the use of fossil fuels
B) By leading to the development of cloning for endangered species
C) By providing insights related to inheritance that influence healthcare and ethics
D) By reducing interest in natural history
12)What is one major benefit of technology in healthcare?
A) Increased wait times for patients C) Decreased access to medical information
B) Enhanced communication among medical professionals D) Higher costs for patients
13)Which technology has significantly contributed to the reduction of paper use in businesses?
A) Typewriters B) Cloud computing C) Landline telephones D) Fax machines
14)What is a common environmental concern regarding the production of electronics?
A) Increased agricultural yield C) Improved biodiversity
B) Water pollution from manufacturing processes D) Enhanced public transport
15)How has the rise of social media impacted social interactions?
A) It has decreased the amount of time people spend with friends.
B) It has encouraged more in-person communication.
C) It has allowed for greater connectivity and interaction, regardless of distance.
D) It has made people more socially isolated.
16)What is a negative impact of increased automation in the workforce?
A) Increased job opportunities for skilled labor C) Job displacement for low-skilled workers
B) Greater efficiency in production processes D) Improved product quality

17)How does the internet contribute to environmental awareness?

A) By spreading misinformation
B) By providing platforms for education and activism
 C) By encouraging increased resource consumption
D) By isolating communities from each other
18)What is the primary ethical concern when conducting research on plants?
A) Cost of research supplies C) Availability of funding
B) Environmental impact and sustainability D) Popularity of the research topic
19)Which of the following practices aligns with ethical treatment principles for plants in research?
A) Using native plant species exclusively C) Collecting plants in endangered habitats
B) Introducing invasive species for diversification D) Ignoring best practices for habitat preservation
20)Before conducting a study on plant species, researchers should obtain:
A) A loan B) Media coverage C) Institutional Review Board approval D) Social media followers
21)What is the role of biodiversity in ethical plant studies?
A) It's irrelevant to the research
B) It should be manipulated for desired results
C) It must be preserved to support ecological balance
D) It can be ignored if testing for a single species
22)Researchers conducting experiments on genetically modified plants should ensure that:
A) There are no regulations regarding their use
B) They provide benefits to the environment and society
C) They use only imported genetic material
D) They avoid monitoring ecological impacts
23)Which of the following actions would constitute unethical treatment of plants in a study?
A) Not replacing plants that were damaged during the research
B) Documenting plant growth accurately
C) Sharing research findings with the public
D) Ensuring the study follows regulatory guidelines
24)When collecting plants for research purposes, researchers should aim to:
A) Harvest as many plants as possible without consideration
B) Collect only what's necessary and follow sustainable practices
C) Prioritize rare or endangered species for their studies
D) Use the collection primarily for profit
25)The ethical treatment of plants also includes:
A) Ignoring plant signaling responses C ) Respecting indigenous knowledge regarding plant use
B) Minimizing communication with local communities D) Conducting research without transparency
26)What is the primary ethical principle that should guide the treatment of animals in biological research?
A) Profit maximization C) Minimization of harm
C) Artistic expression D) Personal gain
27)Which of the following principles is NOT part of the 3Rs framework in animal research ethics?
A) Replacement C) Reduction
B) Reintroduction D) Refinement
28)Before conducting research involving animals, scientists are generally required to obtain approval from which
of the following?
A) Animal Rescue League
B) Institutional Animal Care and Use Committee
C) The public D) Social media
29)What is one of the primary reasons for using alternative methods instead of live animals in research?
A) To save time C) To increase the amount of research
B) To enhance the welfare of animals D) To decrease research costs
30)Which of the following practices is considered unethical in the context of animal research?
A) Using anesthetics during procedures
B) Conducting studies that have no scientific merit
C) Monitoring animal welfare during experiments
D) Providing adequate food and shelter
31)In which case is it considered acceptable to use animals for research purposes?
A) When there are no alternative methods available
 B) When the researcher has personal interest
C) When the research is funded by private companies
D) When it can be done without supervision
32)What does the term "animal welfare" refer to in the context of biological studies?
A) The use of animals as resources
B) The consideration of an animal's physical and psychological well-being
C) The financial aspects of animal care
D) The popularity of animals in research

33)Which type of animal research design is criticized for potentially causing distress to animals without
contributing to scientific knowledge?
A) Observational studies C) Longitudinal studies
B) Single-use studies for trivial questions D) Controlled experiments
34)What is the primary goal of bioinformatics?
A) To enhance pharmaceutical drug design C) To sequence the human genome

B) To develop computational tools for managing biological data D) To study the morphology of cells

36)Which imaging technique uses magnetic fields and radio waves to produce detailed images of the body's
internal structures?
A) X-ray C) Ultrasound
B) Computed Tomography (CT) D) Magnetic Resonance Imaging (MRI)
37)What is the primary focus of biophysics?
A) The study of biological organisms and their structures
B) The application of the principles of physics to understand biological systems
C) The chemical processes occurring within living organisms
D) The genetic mechanisms that govern heredity Sure! Here are three multiple-choice questions related to
biophysics:
38)What is the primary focus of biophysics?
A) The study of biological organisms and their structures
B) The application of the principles of physics to understand biological systems
C) The chemical processes occurring within living organisms
D) The genetic mechanisms that govern heredity
39)Which of the following techniques is commonly used in biophysics to study the structure of proteins?
A) Gas Chromatography B) X-ray Crystallography C) Mass Spectrometry D) Polymerase Chain
Reaction
40)What is biogeography primarily concerned with?
A) The study of financial systems and markets
B) The distribution of living organisms across different geographical regions
C) The historical development of language
D) The formation and structure of Earth’s crust
41)Which of the following biogeographical concepts explains why certain species are found in specific regions
while others are not?
A) Evolutionary theory. B) Ecological niche C) Biogeographical barriers D) All of the above
42)The theory that explains the distribution of species based on their evolutionary history and geographical
location is known as:
A) Chronobiology B) Plate tectonics C) Phylogeography D) Urban ecology
44)What is the primary function of a digital thermometer?
A) To measure atmospheric pressure
B) To measure the temperature of an object or environment
C) To measure humidity levels
D) To measure the pH level of a solution
45)What is the primary advantage of a CT scan over a standard X-ray?
A) CT scans are less expensive.
 B) CT scans provide detailed cross-sectional images of the body.
C) CT scans do not involve radiation. D) CT scans can only be used for examining bones.
46)In which of the following situations would a doctor likely recommend a CT scan?
A) To check for dental cavities C) To monitor blood pressure
B) To evaluate soft tissue abnormalities or tumors D) To assess a broken bone
47)What is the primary use of a Positron Emission Tomography (PET) scan in medical practice?
A) To visualize bone fractures
B) To assess brain function and detect tumors
C) To measure blood pressure
D) To examine the structure of the lungs

48)How does a PET scan create images of metabolic activity in the body?
A) By using sound waves B) By using magnetic fields
C) By measuring the absorption of light
D) By detecting gamma rays emitted from the radioactive tracer
49)What is the primary purpose of an HIV test?
A) To detect other sexually transmitted infections B) To assess blood type
C) To measure the immune system's strength
D) To determine the presence or absence of the HIV virus in the blood
50)Which type of test is commonly used to detect HIV antibodies in the blood?
A) Complete blood count (CBC) B ) Genetic testing C) Rapid HIV antibody test D) Lipid
panel
51)If a person receives a negative result from an HIV test, what does this indicate
A) The person has HIV B) The test was inconclusive
C) The person does not have HIV
D) Further testing is required to determine HIV status
52)How does a digital thermometer help in detecting potential pregnancy in the context of basal body temperature
(BBT) tracking?
A) It measures changes in heart rate.
B) It detects unusual skin temperature.
C) It tracks changes in basal body temperature that may indicate ovulation or pregnancy.
D) It monitors blood pressure levels.
53)What specific change in basal body temperature is often observed in women who become pregnant?
A) A significant decrease in temperature
B) A continuous high temperature after ovulation
C) Fluctuations in temperature
D) No change in temperature
54)Which of the following is a primary ethical concern related to genetic engineering in agriculture?
A) The potential for increased crop yields C) The use of traditional farming methods
B) The impact on small farmers' livelihoods D) The development of drought-resistant crops
55)What ethical issue is raised by the use of CRISPR technology in human genetic modification?
A) The potential for improved health outcomes
B) The risk of unintended consequences and "designer babies"
C) The ability to eliminate genetic disorders D) The high cost of treatment