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