- 1. The major concern about global warming arises from increased concentration of
A) Greenhouse gases
B) Photochemical smog
C) Acid rain
D) Nitrogen oxides
- 2. Decomposition is a process in which a substance is broken to make it useful in other process. The organism that capable of decomposing a substance are called
A) Producers
B) Autotrophs
C) Saprotrophs
D) Heterotrophs
- 3. The laws of heredity were results of the study of
A) Darwin
B) Curie
C) Fleming
D) Mendel
- 4. Damage to DNA that is not repaired and then replicated can result in genetic orders
A) Embryology
B) Mutation
C) Pathology
D) Speciation
- 5. During what part of the day is carbon dioxide release plants
A) Morning
B) Afternoon
C) Noon
D) Evening
- 6. Which of the ff. Fastest travel in air
A) Moonbeam
B) Current
C) Thunder
D) Light
- 7. Secrets insulin that aids in the regulation of sugar in the body
A) Thyroid
B) Pancreas
C) Liver
D) Kidney
- 8. Iron- deficiency contributes to the poor scholastic performance of students. Which of the following food items is best for iron deficient students
A) Sardines
B) Fish
C) Pechay
D) Liver
- 9. A razor blade can float on the surface of water due to
A) Buoyancy
B) Viscosity
C) Surface tension
D) Atmospheric tension
- 10. Waste product of photosynthesis
A) Nitrogen
B) Glucose
C) Carbon dioxide
D) Oxygen
- 11. The molecules that contain an organisms genetic make up is called
A) Cytosol
B) Genetic membrane
C) Nucleolus
D) DNA
- 12. Conduction is to solids, as radiation is to
A) Plasma
B) Serum
C) Liquid
D) Gas
- 13. The disappearance of some species and appearance of new species in an ecosystem
A) Separation
B) Isolation
C) Evolution
D) Selection
- 14. Conduction, convection and radiation are ways of transferring or transforming energy through the use of
A) Electricity
B) Force
C) Heat
D) Waves
- 15. A child at the top of a slide, a ripe guava it fills, a yoyo before it is released are examples of potential energy
A) Mechanical
B) Chemical
C) Gravitational
- 16. The least harmful energy to the atmosphere it does not emit pollution is
A) Fossil fuel
B) Dry cell energy
C) Slash and burn agriculture
D) Nuclear energy
- 17. A food chain is illustrated by the following link line
A) Bacteria-grass-goat-human
B) Human-bacteria-goat-grass
C) Grass- goat- human- bacteria
D) Goat-human-bacteria-grass
- 18. The major concern about global warming arises from increased concentrations of
A) Nitrogen oxides
B) Photochemical smog
C) Sulfur oxides
D) Greenhouse gases
- 19. Steam rising, rain falling from clouds, hot weather bodies of water are examples of the process of
A) Conduction
B) Radiation
C) Conservation
D) Convection
- 20. The spatial and temporal patterns of the grouping and number of organisms are caused by environmental factors and in turn result consequences to the
A) Greenhouse
B) Organisms
C) Ecology
D) Biosphere
- 21. What type of relationship is characterized by one species benefiting while the other is unaffected
A) Mutualism
B) Parasitism
C) Competition
D) Commensalism
- 22. What is the total energy in mechanical system, including both kinetic and potential energy?
A) Electrical energy
B) Mechanical energy
C) Chemical energy
D) Thermal energy
- 23. Which chemical compound consists of one carbon atom and two oxygen atoms and the end product of cellular reproduction
A) Carbon monoxide
B) Carbon dioxide
C) Oxygen gas
D) Methane
- 24. In the biological classification system, what is the highest taxonomic rank, above kingdom, which is used to categorize life forms based on cellular structure and genetic makeup
A) Phylum
B) Domain
C) Class
D) Kingdom
- 25. Which type of energy is associated with the motion of the blades in an electric fan?
A) Thermal energy
B) Kinetic energy
C) Potential energy
D) Electrical energy
- 26. In battery, what type of energy is primarily stored and converted into electrical energy
A) Mechanical energy
B) Kinetic energy
C) Chemical energy
D) Thermal energy
- 27. This region characterized by a cold, treeless landscape, often covered in permafrost, and is commonly associated with the Arctic
A) Taiga
B) Steppe
C) Savanna
D) Tundra
- 28. If a 6A current is running through a series circuit with 3 bulbs, what will be the current at the 2nd bulb?
A) 6 A
B) 24 A
C) 2 A
D) 3 A
- 29. Which is NOT a component in energy change solution?
A) Energy to mix solvent and solute particles
B) Energy to separate solute particles
C) Energy to separate solvent particles
D) Energy to separate the solutions
- 30. _______ reactions usually occurs spontaneously
A) Decomposition
B) Endothermic
C) Exothermic
D) Combination
- 31. If 12V power supply is connected to a parallel circuit with 3 bulbs, what will be voltage at the 2nd bulb?
A) 3 V
B) 24 V
C) 12 V
D) 4 V
- 32. It is the study of movements and relative positions of celestial objects as a meaning for divining information about human affairs and terrestrial events
A) Hydrology
B) Biology
C) Astrology
D) Astronomy
A) Haumea
B) Ceres
C) Pluto
D) Makemake
- 34. Which is not a colligative property solution?
A) Atmospheric prt
B) Freezing point depression
C) Boiling point
D) Vapor pressure lowering
- 35. The higher the entropy, is to
A) Lower
B) Higher
C) Stable
D) Greater
- 36. Enthalpy is to heat as entropy is to
A) Randomness
B) Change
C) Reaction
D) Reaction
- 37. Which is not a type of solubility
A) Desaturated
B) Unsaturated
C) Saturated
D) Supersaturated
- 38. What group of microorganisms are used for bioremediation, reducing toxic wastes from the environment
A) Fungi and algae
B) Bacteria and fungir
C) Bacteria, viruses and protists
D) Viruses only
- 39. All are composed of amino acids, excepy
A) Chitin
B) Keratin
C) Myosin
D) Actin
- 40. What type microscope uses a high voltage beam of electrons to achieve higher magnification?
A) Inverted microscope
B) Light microscope
C) Electron microscope
D) Compound microscope
- 41. The rule which states that DNA from cell of any organisms should have a 1:1 ratio(base pair rule) of pyrimidine and purine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to tymine. This pattern is found in both strands the f the DNA
A) Avogadro's rule
B) Chargaffs rule
C) Rule of 9s
D) Bartholos rule
- 42. All are polysaccharide, except
A) Phospholid
B) Starch
C) Glycerol
D) Chitin
- 43. Which of the ff. Is correct order of cell division?
A) Prophase, anaphase, metaphase, telophase
B) Metaphase, prophase, anaphase, telephase
C) Telophase, anaphase, prophase,metaphase
D) Prophase, metaphase, anaphase, telophase
- 44. What is the shape of the bacteria known as leptospira interrogans, the causative agent of leptospirosis?
A) Coccus
B) Rod-shape
C) Comma-shaped
D) Spiral
- 45. Which property of water makes known as "the Universal solvent"
A) Surface tension
B) Polarity
C) Cohesion
D) High specific heat
- 46. A human has how many pairs of chromosomes?
A) 36 chromosomes
B) 24 chromosomes
C) 46 chromosomes
D) 23 chromosomes
- 47. Genetics is the study of heredity and the variation of inherited characteristic. The observable or physical traits are called?
A) Heretype
B) Genotype
C) Teletype
D) Phenotype
- 48. The branch of biology that deals with the study of different structure and function of plant and animal tissues is referred to as
A) Morphology
B) Cytology
C) Biotechnoy
D) Histology
- 49. Nucleic acid is made up of carbon, oxygen, hydrogen, nitrogen and phosphate. The ff. are basic parts of nucleotides, EXCEPT
A) Chromatin
B) Centromere
C) Chromatid
D) Histones
- 50. Mutation is a change in gene or chromosomes, which caused a new trait to be inherited. A structural aberration wherein a portion of the chromosome has broken off, turned upside down and reattached is called
A) Deletion
B) Inversion
C) Translocation
D) Insertion
- 51. Under the K kingdom system of Biological Classification, where does animal-like, plant- like, or fungi-like organisims belong?
A) Plantae
B) Protista
C) Protoctista
D) Animalia
- 52. Where does the light dependent reaction of photosynthesis occur
A) Stroma
B) Grana
C) Lumen
D) Thylakoid membrane
- 53. Natural selection can alter the variation in population. What happens when the ecosystem favors the intermediate phenotypes
A) Semi-conservative selection
B) Disruptive selection
C) Stabilizing selection
D) Directional selection
- 54. How many ATP is net product produce by glycolysis for every 1 molecule of glucose
A) 6
B) 8
C) 2
D) 4
- 55. Carl Worse propose the three Domain system of Biological Classification. It includes; Archaean, Eukarya and
A) Eubacteria
B) Bacteria
C) Monera
D) Archaebacteria
- 56. Which of the ff is NOT a function of skeletal system?
A) Production of blood cells
B) Protection of internal organs
C) Attachment of muscles
D) Maintenance of posture
- 57. The Appendicular skeleton is comprised of how many bones?
A) 80
B) 100
C) 110
D) 126
- 58. How many permanent teeth is present in adult human?
A) 34
B) 32
C) 30
D) 36
- 59. Which is true of prokaryotic cell?
A) Protists have this kind of cell
B) It's genome is made up of nucleoid
C) It's genetic make-up is always made up of ribonucleic acid
D) All prokaryotic cell don't follow the central dogma of Life
- 60. What type modified stem is present in strawberry?
A) Bulb
B) Stolon
C) Rhizome
- 61. How many lobes are present in lungs?
A) 6
B) 3
C) 4
D) 5
- 62. Speciation may happen in the same place. Through genetic variation, species from the same population may be genetically separated to each other. What is this?
A) Allopatric speciation
B) Sympatric speciation
C) Punctuated equilibrium
D) Gradualism
- 63. What type of muscle tissue contracts the fastest?
A) Skeletal
B) Skeletal and smooth
C) Smooth
D) Cardiac
- 64. A stamine flower is also known as a
A) Perfect flower
B) Imperfect flower
C) Complete flower
D) Monoecious flower
- 65. The Axial skeleton is comprised of how many bones?
A) 80
B) 110
C) 126
D) 100
- 66. Where does light independent reaction of photosynthesis occur?
A) Thylakoid membrane
B) Lumen
C) Grana
D) Stroma
- 67. Worms that are triploblastic, have false body coelom and bilateral symmetry, and have organ system level of organization belong under what invertebrate phylum?
A) Annelida
B) Mollusca
C) Nematoda
D) Platyhelminthes
- 68. What type modified is present in taro or Gabi?
A) Stolon
B) Corm
C) Bulb
D) Rhizome
- 69. Notochord of mammals may become
A) Lungs
B) Vertebrae
C) Spinal cord
D) Limbs
- 70. When 5 molecules of glucose undergo glycolysis, how many ne ATPs are produced?
A) 8
B) 10
C) 2
D) 15
- 71. What organ stores urine?
A) Urinary bladder
B) Gallbladder
C) Urethra
D) Ureter
- 72. Plants which have vascular tissues, differentiated body, and produces spores for reproduction belong under what Division?
A) Protista
B) Fungi
C) Animalia
D) Plantae
- 73. What structure is both part of respiratory and digestive system?
A) Larynx
B) Appendix
C) Trachea
D) Pharynx
- 74. Which is true of eukaryotic cell?
A) Bacteria are also considered having this kind of cell
B) It's genome is made of nucleoid
C) It doesn't need a ribonucleic acid. Only the deoxyribonucleic acid is enough to survive
D) Can be unicellular and multi- cellular organism
- 75. Who is the Father of Microbiology?
A) Robert Koch
B) Antoine van Leeuwenhoek
C) Louis Paster
D) Antoine Laurent Lavosier
- 76. Who stated that all animals are composed of cells?
A) Rudolf Virchow
B) Theodore Schwann
C) Matthias Schleiden
D) Joseph Lister
- 77. He performed experiment using jars and meat which defied the theory of abiogenesis or spontaneous generation
A) Lazaro Spallanzani
B) Francesco Redi
C) Louis Pasteur
D) Robert Koch
- 78. Which is not an example of cytoskeleton?
A) Microtubules
B) Microfilaments
C) Intermediate filaments
D) Monofilament
- 79. What cellular structure is involved in protein synthesis
A) Cell wall
B) Nuclear pore
C) Lysosome
D) Ribosome
- 80. Flap-like structure that prevents the food from going the wrong way during swallowing?
A) Epiglottis
B) Larynx
C) Pharynx
D) Esophagus
- 81. Part of the brain responsible for intelligence, memory and learned behavior?
A) Thalamus
B) Cerebrum
C) Medulla
D) Cerebellum
- 82. Relative is exhibited by algae and fungi in lichen
A) Commensalism
B) Symbios
C) Parasitism
D) Competition
- 83. Not a major component of the plasma membrane
A) Nucleic Acid
B) Glycoprotein
C) Phospholipid
D) Amino acid
- 84. Describes the appearance of an organism without regard to it's hereditary constitution
A) Values
B) Phenotype
C) Genotype
D) Beliefs
- 85. Biome grows tropical grassland with scattered trees and larger herbivores
A) Rain forest
B) Tundra
C) Grassland
D) Savanna
- 86. Electrons that participate in chemical bonding are the
A) Valence electrons
B) Stable inner electrons
C) Electrons in fully occupied orbital
D) All of the above are correct
- 87. The part of the experiment that does not change
A) Independent
B) Control
C) Dependent
D) Experimental
- 88. Polar covalent bonds are observe when the difference in electronegativity between the two atom in the bond is
A) Equal 0.
B) Between 0.4 and 1.7
C) Less than 0.4
D) 1.7 and more
A) A substance that cannot be broken down into simpler units
B) Held together by chemical bonds
C) Compose of combination of atoms
D) A pure substance
- 90. Family or group number of the representative elements represents the
A) Total number of protons
B) Total number of valence electrons
C) Atomic number
D) Total number of electrons
- 91. Chemical bond is formed by a transfer of electrons
A) Ionic
B) Metallic
C) Covalent
D) All of the above
- 92. Which type of chemical bond is formed between two atoms by sharing of two electrons, with one electron from each atom?
A) Ionic
B) Covalent
C) Metallic
D) All of the above
- 93. Which of the ff. NOT an unsaturated hydrocarbon
A) Alkene
B) Alkane
C) None of the above
D) Alkyne
- 94. What type of compound are salts, such as sodium chloride?
A) All of the above
B) Ionic compound
C) Covalent compounds
D) Polar compounds
A) IV B
B) IV A
C) III A
D) II A
A) All of the above
B) Are metals
C) Are elements that belong to the B group
D) Have variable charge
- 97. Atoms of 126C and 147C different
A) Number of electrons
B) None of the above
C) Number of neutrons
D) Number of protons
- 98. Chlorine belongs to which group?
A) Alkali metals
B) Lanthanides
C) Halogens
D) Noble gas
- 99. Electron configuration 1s22s22p4
A) Noble gas
B) Chalcogen
C) Halogen
D) Alkali metal
A) 2, 3, 2
B) 3, 1, 1
C) 2, 1, 2
D) 3, 2,3
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