WorksheetsGeneral Education LET Enhancement (MIDTERM EXAMINATION)
Total questions: 50
Worksheet time: 25mins
Which of the following steps is not a part of the scientific method?
Interview resource persons in order to collect possible data.
Make a guess about the answer to the problem and predict what will happen.
Identify and state the problem.
Perform the experiment to test prediction.
What is the importance of having a control set-up in any scientific investigation?
It will identify the variables in the experiment.
It will provide a basis of comparison between treated and untreated subjects.
It will provide a basis for measuring data.
It will eliminate mechanical errors in experimentation.
Which among these measurements is the comparison between the quantity to be measured and its corresponding standard in measuring length?
Meter
Mass
Ruler
Liter
Of the following situations, which one is not accelerated?
A. A ball rolling down an inclined plane
B. A car traveling at constant velocity along the expressway
C. An object which is whirled horizontally in uniform circular motion
D. A stone which is freely-falling
The following sources of energy are considered renewable and sustainable, except _____
Sun
Waterfalls
Wind
Coal
Of the following sources of energy listed below, which one is caused by the concentration of heat in the Earth’s crust and gives detrimental effect on the population’s food supply?
Solar
Geothermal
Wind
Nuclear
Of the following, which one is considered an alkaloid?
A. Aspirin
B. Iodized salt
C. Muriatic acid
D. Baking soda
Perfumes contain organic compounds called _____
Esters
Ethers
Acids
Bases
One of the properties of gases is its compressibility. This is because the molecules are ______
Close together
Far apart
Stationary
Always moving
Which of the following is true of metalloids?
They conduct heat and electricity more effectively than metals.
They both react with non-metals.
They have the properties of both metals and non-metals.
They conduct electricity better than non-metals.
Which of the following substances listed below is considered a colloid?
Water
Alcohol
Soda
Milk
Which of the following is an extensive property of matter?
Weight
Melting point
Specific gravity
Color
What term is given to the surface of the Earth between the Tropic of Cancer and the Equator?
Great circle
Meridian
Zone
Solstice
Prokaryotic cells are different from eukaryotic cells because prokaryotes have ______
Small ribosomes used for protein synthesis
Nucleic acids found inside the nucleus
Mitochondria that participate in cellular respiration
Genome that is located in the nucleoid
What type of fungus is used in making alcoholic drinks and helps prepare a dough in baking?
Mold
Yeast
Mushroom
Algae
In order to determine the cause of an infectious disease, a diagnostic test that allows microorganisms to multiply in a medium is performed in a controlled laboratory condition. This test is called ______
Complete blood count (CBC)
Urinalysis
Microbial culture
Microscope
A two-lobed endocrine gland, shaped like a bow tie, located at the neck and regulates metabolism is known as ______
Pituitary gland
Thyroid gland
Parathyroid gland
Adrenal gland
Bamboo, which are considered as the tallest grass, reproduce asexually through extended structures called ______
Roots
Buds
Runners
Seeds
The branch of biology that deals with the study of animal behavior is called ______
Psychology
Taxonomy
Ecology
Ethology
Decomposition is a process in which a substance is broken to make it useful in other processes. The organisms that are capable of decomposing a substance are called ______
Autotrophs
Heterotrophs
Saprotrophs
Producers
Which of the following describes the habitat of an organism?
It is the population of an ecosystem.
It is the food supply in a given environment.
It is a place in the environment where the organisms live.
It is a community of an ecosystem.
This segmented worm is used in the traditional medicine to facilitate anticoagulation. What is this organism?
Liver fluke
Leech
Earthworm
Bloodworm
What hormones in plants are responsible in promoting auxillary budding and apical dominance?
Auxins and Gibberellins
Cytokinins and Gibberellins
Auxins and Abscisates
Cytokinins and Auxins
What do you call a marine mammal that has a long ivory tusks and well-adapted in the tundra biome?
Walrus
Whale
Polar bear
Elephant
The interrelation between the physical and biological components of the environment is called _____
Ecosystem
Ecological niche
Water system
Solar system
Which of the following pathogens does not need a vector to be transmitted?
Plasmodium
Dengue virus
SARS-CoV-2
Zika virus
The time it takes for the earth to complete a 30° rotation is _____
2 hours
4 hours
6 hours
8 hours
The element Francium has an atomic number of 87. Given this information, which of the following statement is correct?
Francium has an atomic weight of 87.
Francium has an atomic mass of 87.
Francium has 87 neutrons.
Francium has 87 protons.
Which of the following is NOT true about the energy pyramid?
Organisms at the tip of the pyramid receive the highest amount of energy.
Energy transfer decreases from bottom to top of the pyramid.
Each trophic level loses energy in the form of heat.
Producers are located at the bottom part of the pyramid.
Which of the following statements is true?
The nucleotide base Adenine can be found in both RNA and DNA.
Pairing of nucleotide bases in human DNA is very conservative.
Hydrogen bonding connects every pair of nucleotide bases in both human DNA and RNA.
Human DNA is double-stranded, while human RNA is single-stranded.
In what part of the scientific method does testing of the possible solution take place?
Observation
Analysis and interpretation
Experimentation
Conclusion
All statements are true about mitosis except _____
It involves cell division of somatic cells.
It can function for cellular maintenance in multicellular organisms.
It can function as a mode of reproduction in unicellular organisms.
It involves crossing-over.
Which of the following is not involved in a chemical change?
Change in color
Change in shape
Formation of bubbles
Production of heat
Which of the following terms does not relate to weather?
Tropical
Windy
Sunny
Stormy
Which of the following taxa is incorrectly matched to a representative organism?
Fungi: mushroom
Protista: algae
Animalia: butterfly
Eubacteria: yeast
What do you call the specific process of introducing tree species by planting in an area which is previously not a forest?
Afforestation
Deforestation
Reforestation
Forestation
Which of the following is not an example of Active transport?
Pinocytosis
Facilitated diffusion
Phagocytosis
Sodium Potassium pump
Which of the following materials found in the house is not an example of a colloid?
Orange juice
Hair gel
Mayonnaise
Plaster
Volcanoes are created when
two continental crusts collide
two oceanic crusts collide
a continental crust and tectonic plate collide
a continental crust and oceanic crust collide
What do you call the living machineries functioning for the maintenance and sustenance of life that are found in cells but not in viruses?
Plasma membrane
Nucleoid
Genetic materials
Organelles
In what layer of the sun does the nuclear fusion occur?
Core
Photosphere
Chromosphere
Corona
The term used to refer to the zone between the Tropic of Cancer and the Arctic Circle is _____
Tropical zone
Temperate zone
Arctic zone
Antarctic zone
Which of the following statements does not show a characteristic of life?
A mother dog giving birth to four puppies
A child crying after touching a hot kettle
A dead tree branch carried by the river current
A bacteria culture developing some immunity against an antibiotic
A bicyclist can travel 45 km in just 3 hours. With the given data, the bicyclist has an average speed of
5 km/hr
8 km/hr
15 km/hr
20 km/hr
When the distance of an object A from object B is changing, then object A is _____
In motion
Speeding
Accelerating
In increasing velocity
What does the equation PE = m × g × h mean?
The heavier the object is, the lesser the potential energy.
The lighter and nearer the object is to the ground, the greater the potential energy.
The lighter the object is, the greater the potential energy.
The heavier and farther the object is from the ground, the greater the potential energy.
All have contributed to the tenets of Cell Theory except
A. Robert Hooke
B. Rudolph Virchow
C. Mathias Schleiden
D. Theodore Schwann
Which of the following is NOT true about a prokaryotic cell?
A. Organisms under the Domain Archaea are prokaryotic.
B. They have a special region in their cytoplasm that contains the genetic material.
C. They have ribosomes and cell membrane.
D. Membrane-derived organelles are present.
Which of the following is NOT true about minerals?
It is inorganic and naturally occurring.
All minerals are solid.
It has a specific chemical composition and crystalline structure.
It contains carbon atom attached to a hydrogen atom.
Which of the following cells does not reproduce through meiotic division?
Egg cells
Skin cells
Sperm cells
Sex cells
