WorksheetsActual March 2023
Total questions: 160
Worksheet time: 1hrs 20mins
Which of the following is not an organic compound?
Water
Carbon
Sulfur
Phosphorus
What is the longest cell in the body?
Epithelial cell
Nerve cell
Skin cell
Sensory cell
What is the second most abundant element in the human body accounting for 18 % of the body?
Carbon
Hydrogen
Nitrogen
Oxygen
A disorder that causes loss of old and new memories
Alzheimer’s disease
Parkinson’s disease
Cerebral Palsy
Huntington's disease
Cow eat plants and humans eat cow, what are humans?
Herbivore
Omnivore
Carnivore
Detritivore
Orchid in the tree, birds build’s nest on trees, etc. are an example of
Commensalism
Parasitism
Mutualism
Predation
It is referred to as “indivisible” because it’s believed that it is the smallest particle
Atom
Proton
Electron
Neutron
An ion with a negative charge:
Proton
Electron
Neutron
Anion
It is the process by which species from different ancestors develop similar characteristics/structures?
Speciation
Natural selection (Convergent Evolution)
Gradualism
Common descent
What study focuses more on metals and minerals?
Analytic chemistry
Organic chemistry
Inorganic chemistry
Biochemistry
What is the highest level in taxonomy?
Domain
Phylum
Kingdom
Species
The following are domains of life EXCEPT ______.
Eukarya
Prokaryota
Archaea
Bacteria
Zebra, Horses, donkeys and mules have a lot of similarities because they belong to the same
Genus
Species
Taxonomy
Phylum
What is the study of chemical process of living organisms?
Biochemistry
Microbiology
Biotechnology
Genetic Engineering
The set of observable characteristics in an individual resulting from the expression of genes?
Phenotype
Genotype
Genetics
Genes
A change in the DNA sequence of an organism maybe due to radiation, etc. is called ______.
mutation
mutagen
metabolism
evolution
When a section of genes or DNA, are removed from an organism and supplemented or inserted into the plasmid?
Gene mapping
Gene splicing
Gene sequencing
Gene ordering
What is the distance between two consecutive waves?
Wavelength
Frequency
Period
Amplitude
Cylindrical container in the laboratory used in measuring, mixing and pouring chemicals
Beaker
Autoclave
Crucible
Flask
Range of technologies that employ living organisms or parts of them to make diverse product
Microbiology
Biochemistry
Biotechnology
Biophysics
Cup-like receptacle made of porcelain used for heating inside the lab.
Autoclave
Beaker
Crucible
Graduated cylinder
Rate at which something occurs or is repeated over a particular period of time or the number of waves passing by a specific point in a period is called ____________.
frequency
period
wavelength
amplitude
Processes of removing harmful bacteria from packed or unpacked milks and juices by applying mild heat
pasteurization
sterilization
homogenization
decontamination
Sahara: dessert :: arctic: _____
tundra
biome
forest
grassland
The weight of an object on earth is greater than its weight on the moon because Earth has greater ______.
Gravitational pull
Density
Atmospheric Pressure
Magnetic Field
Factory of cement, plastics companies contribute to the more than half of
Sulfuric rain
Greenhouse gases
Acid rain
Ocean acidification
The cell wall, vacuole, and the plastids are found in
Animals
Plants
Fungi
Bacteria
The time elapsed between exposure to a pathogenic organism, a chemical, or radiation, and when symptoms and signs are first apparent
inoculation
incubation
intoxication
latency
What law resembles “redshift”?
Kepler’s law
Doppler’s Law
Hubble’s Law
Newton’s Law of Gravitation
Which of the following is not a kind of protein?
Globular
Membrane
Spiral
Fibrous
What is the goal to generate the first sequence of the human genome?
Human Genome Project
Development of artificial intelligence (AI)
Exploration of the deep sea
Commercial space travel
The magnitude of displacement is always
Less than the distance travelled
Less than or equal to the distance travelled
Greater than the distance travelled
Equal to the distance travelled
What is the temperature of Mercury when it’s nearest the Sun?
430∞C
250∞C
-100∞C
1000∞C
The first organic compound that is derived from inorganic?
Ammonium ozonate
Nucleic acid
Phosphorus
Urea
Referring to the geological time scale, which is true among the following:
The quaternary period is the youngest period.
We are currently living in the quaternary period.
The quaternary period epoch is the oldest epoch.
We are currently In the Industrial epoch.
Which of the following is the correct from least to greatest?
Organism-population-community-ecosystem-biome-biosphere
Organism - population - ecosystem - community - biome - biosphere
Organism - community - population - ecosystem - biome - biosphere
Organism - community - ecosystem - population - biome – biosphere
Which of the following is from largest to smallest?
Biosphere, ecosystem, community, population, and organism
Biosphere, ecosystem, population, community, and organism
Biosphere, community, ecosystem, population, and organism
Ecosystem, biosphere, community, population, and organism
Which of the following is of the sun?
Rille
Prominence
Macron
Maria
What is a machine that provides a physical method of sterilization by killing bacteria, viruses, and even spores present in the material put inside of the vessel using steam under pressure?
autoclave
Spectroscope
Bunsen burner
X-ray machine
What type of data is shown?
Table
Pie Chart
Bar Graph
Pictograph
What is the ratio between the speed of light to the crown glass?
0.658
1.97
1.5
2.00 x 10^8
What is an example of predation?
Human hunting the animal for food.
Plant photosynthesizing sunlight
Fungus breaking down dead organic matter
Bacteria converting nitrogen in the soil to a usable form
Which one/s take place in radioactive decay?
I. An unstable atomic nucleus spontaneously loses energy by emitting ionizing particles and radiation
II. A stable atomic nucleus alpha and beta particles
III. An atom of one type transforms to an atom of another type that results to a decay chain
I and III
II and III
What is the classification of the animal-like, plant-like organisms?
Bacteria
Protists
Fungi
Virus
Arrange from most dangerous to least dangerous: pollution, climate change, alien species, lost of habitat.
Climate change → Pollution → Loss of habitat → Alien species
Pollution → Climate change → Alien species → Loss of habitat
Alien species → Climate change → Pollution → Loss of habitat
Pollution → Loss of habitat → Climate change → Alien species
Which of the following is correct?
Producer – consumer – predator
Consumer – producer – predator
Predator – producer – consumer
Producer – predator – consumer
Protozoa, seaweed and molds belong to?
Fungi
Protista
Archaea
Bacteria
Who discovered penicillin?
Hooke
Leuwenhook
Curie
Fleming
The power rating of an electric motor that draws current of 3A when operated a 120 V is _______.
40 watts
360 watts
1000 watts
400 watts
The force between the charges given at a particular distance.
Coulombs Law
Ohm’s Law
Kirchhoff’s Rule
Hunds Rule
Which of the following is a homogenous solution?
water
blood
milk
sand
What is the term involves using relationships between reactants and/or products in a chemical reaction?
Redox reactions
Chemical bonding
Balancing equations
Stoichiometry
Catalyst: Enzymes - Hydrolysis: ___
Absorption
Breathing
Digestion
Reaction
Which of the following belong to plant cells and not found in animal cells?
Chloroplasts, Cell wall, Central vacuole, Plasmodesmata, Amyloplasts
Nucleus, Mitochondria, Lysosomes
Cilia, Flagella, Centrioles
Golgi apparatus, Endoplasmic reticulum, Ribosomes
What energy transformation takes place in a generator?
Electrical to mechanical
Heat to mechanical
Mechanical to electrical
Chemical to mechanical
Plants are eaten by humans and animals. They are considered as _______.
Omnivore
Carnivore
Herbivore
Detritivore
The horizontal movement of the air is called __________.
Jet Stream
Wind
Ocean Currents
Updraft
Which of the following has a low melting point, insolubility in water, but soluble in ether are characteristics of compound called __.
Carboxylic
Organometallic
Triglyceride
Sulfuric
Who is the monk that coined the term “cell”?
Robert Hooke
Carolus Linnaeus
Aristotle
Gregor Mendel
What is the cell organelle that make most of the energy for the cell and have their own genetic material that is different from the genetic material found in the nucleus?
Endoplasmic Reticulum
Golgi Apparatus
Lysosomes
Mitochondrion
What energy is involved when a power bank is connected to a charging cellphone?
Kinetic Energy
Potential Energy
Chemical Energy
Gravitational Energy
What is the field of chemistry that study organic substances and compounds?
Inorganic Chemistry
Biochemistry
Nuclear Chemistry
Organic Chemistry
What process kills harmful microbes in milk without affecting the taste or nutritional value?
Freezing
Canning
Pasteurization
Fermentation
What is the study of enzymes and enzyme-catalyzed reactions?
Enzymology
Endocrinology
What is the largest ecosystem in the world, composed of 71%?
Ocean
Sahara
What is a reliable source of energy?
Renewable energy
Nuclear energy
It is the unit structure of carbohydrates?
Saccharide
Lipid
Plants produce oxygen in daytime and carbon dioxide at night through the holes in their leaves called _____.
Stomata
Mitochondria
Which of the following can’t be tested through blood test?
Syphilis
Gonorrhea
Most common to be tested in laboratory?
CBC
Herpes
What are complex macromolecules responsible for building, repairing tissues and helping in metabolic processes?
Protein
Carbohydrates
What looks like a spilled milk-shaped galaxy according to ancient people?
Milky Way
Andromeda Galaxy
Which of the following do not dissolve in water?
Triglyceride
Organometallic
In a two-dimensional diagram, the vertical axis is called __.
abscissa
ordinates
The following are examples of frequency count except
Cumulative
Grouped
Ungrouped
Nominal
These processes maintains and shows homeostasis EXCEPT
Respiration
Relaxation
Locomotion
Excretion
What is the chemical that carries genetic material in the body?
DNA
Lipids
Which is not made of carbon?
Paint
Dye
Chronological order from earlier to present:
Leuwenhoek – Pasteur - Lister
Lister – Pasteur – Leuwenhoek
Who coined the word “gene”?
Johansenn
Mendel
What graph uses pictures in presenting data?
Table
Pictograph
What is the energy currency of the cell?
ATP
Glucose
What is the energy in a powerbank?
Light Energy
Chemical energy
The weight of an object on moon is lesser than its weight on the earth because moon has lesser _.
Gravitational pull
Density
The following can cause mutation in DNA except:
UV radiation
Continental Drift
Exposure to certain chemicals
Errors during DNA replication
Regenerative medicine: Stem Cell as genetic engineering: _______.
Preventive Medicine
Alternative medicine
Genetic engineering: Preventive medicine as stem cell: _____________
Regenerative medicine
Preventive Medicine
Plants are producers and secondary consumers are humans, which are ______.
carnivore
omnivore
Which of the following is LEAST considered in discovering a new exoplanetary system?
Radial Velocity
Direct Imaging
Transit Method
Alignment of stars
What do you call the process when you combine acid and base that produces water and salt?
Electrolysis
Neutralization
H2O2 becomes H20 and oxygen. What do you call this process?
Decomposition
Synthesis
In a two-dimensional diagram, the horizontal axis is called __.
abscissa
ordinates
Which of the following is not considered as an animal, fungi and plant?
Chordata
Protista
Battery is ________.
Direct current
Electromagnetic wave
What percent of speed of light is speed of light in crown glass?
66.3
3.0x108
Find the force of repulsion + 0.5 and +2 with a distance of 3m?
2.998 x 10^8 N
9.986 x 10^8 N
What is a line where a body rotates and divides into 2 equal parts?
axis
equator
Dialysis is used if there is a failure of ______.
Kidney
Pancreas
It is a bond when two non-metals react.
metallic
Covalent
It is the process when you combine Na and Cl.
Synthesis
Decomposition
What do you call when two different organism develop similar characteristic as a result of same needs in the environment?
Convergent
Divergent
Ice pellet that didn’t melt but still land on the ground as a solid?
Hail
Sleet
In a cell, which of the following is the largest component?
water
plasma
It shows the number of atoms of an element in the equation?
Exponent
Subscript
____________ are natural ecosystems, what do you call an aquarium, pond, zoo?
Artificial ecosystem
Simulated ecosystem
What is used to determine if there is a something wrong with the sequence of nucleotides or how to know the location of the gene?
Gene mapping
Gene splicing
is the process of determining the order of nucleotides in a DNA molecule?
Gene mapping
Gene sequencing
What do you call the interaction of a sea anemone and a clownfish?
Mutualism
Commensalism
What is the study of the cell?
Histology
Cytology
These are the elements that is a primary make up of a living thing except sulfur.
CHON (carbon, hydrogen, oxygen, and nitrogen)
SiAlCa (silicon, aluminum, and calcium
Who is the father of taxonomy?
Carolus Linnaeus
Gregor Mendel
Who is the father of heredity?
Carolus Linnaeus
Gregor Mendel
What to do to ensure safety from microbes in an experiment?
Decontamination
Filtration
It consists of the 65 percent in human body and makes up most of the cell.
Water
Oxygen
Initial evidence that supports the big bang theory of the creation of the universe came from ____.
data from the Hubble Space Telescope
redshift calculations by Edwin Hubble
Which statement on intensive farming or agriculture is CORRECT?
It involves a relatively high input of labor.
It helps solve environmental pollution.
It is contrary to sustainable agriculture
It supports environment conservation
During periods of increased global temperatures, which of the following is most likely to occur?
An increase in earthquakes
An increase in atmospheric CO2
A decrease in earthquakes
A decrease in atmospheric CO2
Why are dams thicker at their bottom than at their tops?
Water weighs more at the bottom
Water pressure is higher at the bottom
Water is denser at the bottom
The temperature is higher at the bottom
What is the highest classification of plants and animals?
Kingdom
Phylum
Genus
Taxonomy
Mosquitoes, ticks and lice suck blood from other organisms because they are _____.
Herbivores
Carnivores
Parasites
Omnivores
What is the ratio of 5/20=50/200?
0.25
0.20
4
0.4
One complete wave is called ______.
crest
frequency
trough
cycle
Which of the following doesn’t cause global warming?
Fossil Fuels
Dry Cell Energy
Non-renewable energy
Gas
Med Biotechnology: CT Scanners, Nutritional Biotech: ________.
X-ray
Ultrasound
Diet Therapy
Endoscopy
What is the primary function of science in the field of education?
Limiting creativity
Encouraging competition
Providing a source of information
Focusing on practical skills only
What is a significant benefit of utilizing science in the field of medicine?
Promoting alternative treatments
Controlling the spread of diseases
Reducing the need for healthcare professionals
Eliminating the use of medications
In a food chain, which category do carnivores typically fall into?
Primary producers
Primary consumers
Secondary consumers
Decomposers
Which of the following instruments can be used to magnify distant objects?
Microscope
Thermometer
Telescope
Barometer
What limitation does a microscope help overcome when observing small objects?
Inability to see with the naked eye
Difficulty measuring temperature
Inability to detect sound waves
Difficulty determining distance
In which common process is yeast typically used?
Fermentation for alcohol production
Baking bread and other goods
Producing electricity
Purifying water
Which phenomenon can have a negative impact on mollusk populations and may result in shellfish poisoning?
Ocean acidification
Coral bleaching
Red tide
Coastal erosion
What term best describes the relationships between different organisms in a food web?
Isolated
Competitive
Intertwined
Repetitive
How are the relationships between organisms typically represented in a food chain?
Circular
Hierarchical
Linear
Random
Which cellular structures are described as hair-like and aid in the movement of cells or substances around cells?
Flagella
Cilia
Microtubules
Pseudopodia
What is the primary force responsible for a guava falling from its tree or if you are playing a yoyo?
Air resistance
Gravitational pull
Centripetal force
Magnetic attraction
What term describes an entity that occupies space, contains various particles, has different size and mass, and exhibits inertia?
Energy
Matter
Vacuum
Force
Which category of organic compounds do margarine and olive oil belong to?
Carbohydrates
Proteins
Lipids
Nucleic acids
What term is used to describe harmful organisms such as bacteria and viruses?
Mutagens
Microbes
Enzymes
Hormones
What process in primitive plants is responsible for the abundance of oxygen in Earth's atmosphere?
Cellular respiration
Fermentation
Photosynthesis
Nitrogen fixation
What term is used to describe the path of light in physics and optics?
Wave
Particle
Ray
Frequency
Which of the following best describes the result when an object's length and height are both doubled?
Twofold increase
Threefold increase
Fourfold increase
Sixfold increase
What is the average number of eggplants harvested below across 4 days? Day 1= 12 Day 2= 10 Day 3= 15 Day 4= 19
10 eggplants per day
12 eggplants per day
14 eggplants per day
16 eggplants per day
Which term refers to the supercontinent that existed approximately 335 million years ago, consisting of all Earth's land masses?
Gondwana
Laurasia
Rodinia
Pangaea
What is the method used to create a Modified Genetic Organism and what are some of its potential uses?
Selective breeding for agriculture
Genetic engineering for medical purposes
Hybridization for environmental conservation
Artificial selection for industrial purposes
What type of organism is not included in the main kingdoms of life?
Fungi
Plants
Animals
Bacteria
What is phylogenetics and how does it aid in understanding the evolutionary relationships and diversification of species?
The study of physical characteristics and adaptation of species
The analysis of genetic data and molecular evidence to reconstruct evolutionary history
The observation of behavior and social structures of species
The classification of species based on morphological similarities
How does Genetic Drift impact the genetic variation and evolution of populations, and what are some examples of this process?
The accumulation of mutations over time
The loss of genetic diversity due to chance events
The survival and reproduction of certain traits due to natural selection
The exchange of genes between populations via migration
What is the Doppler shift?
The change in frequency of a wave due to relative motion between the source and observer
The process of reflecting sound waves off of objects
The bending of light as it passes through a medium with a different refractive index
The transfer of energy from one point to another through vibration or oscillation
What type of organism is not considered part of the main kingdoms of life?
Fungi
Plants
Animals
Virus
What are the main causes of global warming and what are some of its impacts on the environment and human society?
Natural phenomena such as volcanic eruptions
Human activities such as burning fossil fuels and deforestation
Changes in the Earth's orbit and tilt
All of the above
What are electrolytes and what is their function in the human body?
Substances that regulate fluid balance
Vitamins and minerals for the immune system
Proteins involved in cellular metabolism
Hormones for growth and development.
Household products: detergents :: Acid: _____
Baking soda
Citrus foods
Drain cleaners
Ammonia
What is convection and how does it work in the transfer of heat in liquids and gases?
The transfer of heat through the movement of molecules
The transfer of heat through the movement of electromagnetic waves
The transfer of heat through direct contact
The transfer of heat through radiation
What is radiation and how does it play a role in the transfer of heat?
The transfer of heat through the movement of molecules
The transfer of heat through the movement of electromagnetic waves
The transfer of heat through direct contact
The transfer of heat through the emission of electromagnetic waves, such as light and heat, from a source without the need for a medium to carry it.
What is parasitism and how does it differ from other symbiotic relationships in the biological world?
A symbiotic relationship where both organisms benefit from the interaction
A symbiotic relationship where one organism benefits and the other is unaffected
A symbiotic relationship where one organism benefits and the other is harmed
A symbiotic relationship where both organisms are harmed from the interaction.
What is the state of matter of the rays of the sun?
Solid
Liquid
Gas
Plasma
What was the name of the volcano that erupted in 1990?
Mount St. Helens
Mount Vesuvius
Mount Pinatubo
Mount Etna
What is a hemisphere and how is it used to describe the division of the Earth's surface?
A circle that divides the Earth into equal halves
A region that includes half of the Earth's surface, either the northern or southern half
A part of the Earth's surface that is defined by its longitude and latitude
A region that includes one of the Earth's poles and the equator.
What is the commonly used scale to measure the magnitude of an earthquake?
Mercalli Scale
Richter Scale
Moment Magnitude Scale
Macroseismic Scale
_______ can be separated into its components by physical means.
Mixture
Substance
Element
Compound
