General Biology Practice Test

CONTROLLED COPY: 2023 Rev. 00 1. The statement, “The worm is 2 centimeters long.” is a/an a. observation b. inference c. theory d. hypothesis 2. The organelle that breaks down lipids, carbohydrates, proteins into simpler form to be used by the cell is a. vacuole b. lysosome c. ribosome d. filament 3. By what process does a severely cut portion of a starfish grow into a full starfish? a. Binary fission b. Budding c. Fragmentation d. Regeneration 4. How can we differentiate arthropods from annelids? a. Arthropods have segmented body, annelids have non-segmented body b. Arthropods have wings, annelids have legs c. Arthropods have exoskeleton, annelids have endoskeleton d. Arthropods have jointed legs, annelids have none 5. What type of tropism is shown in the situation where the plant’s roots grew towards the surface of the ground? a. Positive Phototropism b. Negative Phototropism c. Positive Geotropism d. Negative Geotropism 6. Which of the following is not true of the Earth’s atmosphere? a. Its layers mix, heat up, and interact with the top layer of the Earth’s crust. b. It traps heat on the form of the greenhouse effect. c. It blocks the sun’s rays. d. It contains the variety of marine life. 7. What term is used to describe the ability to maintain a constant internal environment? a. Metabolism b. Growth and development c. Homeostasis d. Thermoregulation 8. Which is the smallest unit of life that can survive and reproduce on its own? a. Cell b. Organ c. Tissues d. Population 9. True of Trisomy 21: a. An abnormality of chromosomes inheritance in which there are 3 copies of chromosomes 21 b. Also known as Turner’s syndrome c. Presents with superior mental intelligence, tall stature and protruding d. Results when an individual is missing 3 chromosomes 10. Which of the following protists causes Malaria? a. Amoeba b. Euglena c. Plasmodium d. Paramecium 11. The deepest layer of the epidermis which consists of cuboidal or columnar cells plays a big role for mitotic division every 19 days is the: a. stratum spinosum b. stratum granulosum c. stratum corneum d. stratum basale 12. Mitochondria is the site of cellular respiration. Which of the following is the final end product of the process? a. Carbon dioxide b. Oxygen c. NADH d. ATP 13. Which of the following is the building block of carbohydrates? a. Amino acid b. Nucleotide c. Fatty acid 14. What is the most common cause of cardiovascular disease? a. Fatty deposits in the arteries b. Inadequate supply of red blood cells c. Lack of sodium in the diet d. Increased heartbeat 15. Where does glycolysis take place? a. Ribosome b. Lysosomes c. Cytoplasm 16. Which of the following cannot be found in prokaryotes? a. Cytoplasm b. Plasma membrane c. Membrane-bound nucleus d. Monosaccharide d. Golgi bodies d. DNA CONTROLLED COPY: 2023 Rev. 00 17. Which of the following organelles produces turbo pressure against cell wall and mainly acts as a water reservoir? a. Plastids b. Vacuole c. Lysosomes d. Chloroplast 18. What is the branch of zoology that is devoted to the study of fish? a. Helminthology b. Ichthyology c. Chondrichthyes 19. The process involved in the production of mRNA using DNA as template is termed _______? a. Transcription b. Replication c. Gene manipulation d. Ornithology d. Reverse transcription 20. Where would the vesicles from the endoplasmic reticulum proceed containing the polypeptide for further modification? a. nucleus b. golgi complex c. plasma membrane d. mitochondria 21. Which of the following plant cells functions as a food storage? a. collenchyma b. parenchyma c. sclerenchyma 22. Which of the following groups of organisms is a very good source of antibiotics? a. Penicillium notatum b. Aspergillus niger c. Rhizopus stolonifera 23. All monocots possess the following characteristics except: a. scattered arrangement of vascular bundles b. parallel veins d. guard cell d. None of the above c. fibrous root system d. floral parts in multiples of 4 or 5 24. What is the most abundant inorganic compound in the protoplasm? a. Fluid b. Blood c. Plasma d. Water 25. What is the unit of heredity? a. Gamete c. Sperm d. Cell 26. Which is the richest type of tropical rain forest in the Philippines? a. Molave forest b. Dipterocarp forest c. Mangrove forest d. Pine forest 27. Sound travels the fastest in ____. a. Solid b. Liquid c. Gas d.Vacuum 28. The cell wall of a plant cell is made of _______. a. Lipid b. Cellulose c. Protein d. Cell membrane b. Gene 29. Which of the following is the correct sequence of the level of organization from lowest to highest? a. Cells-system-organs-tissues c. Cells-tissues-organs-system b. System-organs-tissues-cells d. Tissues-systems-cells-organs 30. Which kind of relationship is exhibited by algae and fungi in lichen? a. Commensalism b. Parasitism c. Symbiosis 31. What causes camote leaves sold in markets to wilt? a. Decreased turgor pressure b. Increased turgor pressure c. Increased diffusion pressure d. Decreased air pressure 32. What is the product of biotechnology that has existed even before the industrial age? a. Chemical pesticide b. Vitamin C c. Synthetic Medicine 33. Identify which of the following is NOT true about tapeworm: a. They are animals b. They are saprozoic d. Competition d. Leavened bread c. They have special saprotrophic d. They are autotrophic 34. Amoeba proteus is a very common amoeba that you use in the laboratory for experiments. What do they use for locomotion? a. flagella b. cilia c. pseudopodia d. feet 35. What type of reproduction is involved when an egg develops into a new organism without being fertilized by a sperm? a. budding b. binary fission c. parthenogenesis d. fragmentation 36. What do you call the finger-like folds on the inner linings of the small intestine? a. Villi b. Appendix c. Rugae d. Cecum 37. What is that flap-like structure that prevents the food from going the wrong way during swallowing? a. Epiglottis b. Larynx c. Esophagus d. Pharynx 38. What is the membrane that surrounds the lungs? a. Pleura b. Meninges d. Pericardium c. Peritoneum 39. What is that 3-carbon sugar formed during the light-independent reaction phase of the photosynthesis? a. ADP b. NADPH c. ATP d. PGAL 40. The process of physical division in eukaryotic cell which enables growth and production of worn-cell cell is known as a. Eukaryotic b.Prokaryotic c. Meiosis d. Mitosis CONTROLLED COPY: 2023 Rev. 00 41. A fruit is a ________________. a. ripened ovary b. ripened ovule c. ripened bud 42. Which of the following is not true of fungi? a. some are pathogenic b. some are photosynthetic c. some are edible d. form symbiotic relationship with algae 43. What organs are controlled by the autonomic nervous system? a. skeletal b. muscle c. heart d. ripened stigma d. both A and C 44. How will you classify photosynthetic microorganisms under the two-kingdom scheme of biological classification? a. Under Kingdom Protista c. Under Kingdom Animalia b. Under Kingdom Monera d. Under Kingdom Plantae 45. Plants wilt when the rate of ____________. a. Water absorption is faster than transpiration b. Transpiration is faster than water absorption c. Photosynthesis is faster than transpiration d. Weight loss after several weeks 46. What do you call the types of symmetry where the body parts are paired on either side of the body? a. Dorsal b. Bilateral c. Radial d. Ventral 47. Which stage of incomplete metamorphism is undergone by grasshoppers? a. Nymph, pupa, adult c. Egg, nymph, adult b. Egg, larva, pupa, adult d. Egg, pupa, adult 48. What is the longest bone in the body? a. Humerus b. Femur c. Tibia-fibula 49. Which causes our bones to turn brittle and easily break? a. Turning into muscle tissues b. Increase in flexibility c. Turbidity decrease d. Removal of collagen 50. How many bones does an adult human body have? a. 206 b. 200 c. 217 d. 201 51. What do you call automatic responses to an external stimulus? a. Reflex b. Instinct c. Impulse d. All of these d. Clavicle 52. What structure provides flexible support and protection to the spinal cord? a. Skull b. Ribs c. Vertebral column d. Sternum 53. Which form of RNA delivers information from DNA to be used in making protein? a. Messenger RNA b. Ribosomal RNA c. Transfer RNA d. All of these 54. Which of the following is not a type of cell? a. Bacterium b. Amoeba d. Virus c. Sperm 55. A type of chemical process within and in relation to living organisms ________. a. Biotechniques b. Biochemistry c. Biology d. Microbiology 56. What would you do if you were asked to apply the most basic process in the Science of Taxonomy? a. Map down organisms c. Differentiate organisms b. Understand organisms d. Identify organisms 57. Gibberellins cause growth by stimulating ___________. a. Cell division b. Dormancy c. Cell growth 58. Identify which of the following is mismatched: a. Endocytosis – phagocytosis and pinocytosis b. Passive transport – diffusion and osmosis c. Anabolism – cellular respiration d. Catabolism – digestion of food d. Germination 59. A series of membrane-bound channels free of ribosomes is called ____________. a. Smooth endoplasmic reticulum c. Plastid b. Mitochondrion d. Rough endoplasmic reticulum 60. What kind of organism is the schistosoma which causes schistosomiasis, a tropical disease traced to contaminated water? a. Virus b. Flatworm c. Fungus d. Protist 61. Which of the following statements is true of diffusion? a. It requires an expenditure of energy by the cell b. It is a passive process c. It occurs when molecules move from a region of lower concentration to one of higher concentration d. It requires a membrane 62. Which are small, irregularly-shaped cells without nuclei but are rich in ATP? a. Leukocytes b. Thrombocytes c. Lymphocytes d. Erythrocytes CONTROLLED COPY: 2023 Rev. 00 63. What branch of Biology is involved when one is studying the characteristic structure and functions of all kinds of cells? a. Cytology b. Morphology c. Physiology d. Histology 64. Which biome grows tropical grassland with scattered individual trees and larger herbivores? a. Tundra b. Rain forest c. Grassland d. Savanna 65. What do you call that process in birds wherein they shed off features at least once a year? a. Skinning b. Molting c. Furrowing d. Migrating 66. The largest organ inside the human body is the _____________. a. Brain b. Heart d. Lungs c. Liver 67. Which genetic term pertains to the physical appearance of an individual? a. Genotype b. Phenotype c. Haplotype d. Clone 68. In applying crop technology, which of the following will you NOT use since these are not genetically modified organisms? a. Delayed ripening tomato c. A-enhanced golden rice b. Cross-bred hybrid plants d. Drought resistant Bt. Corn 69. These are the characteristics you can find to show that the bacteria are the earliest life forms in primitive earth, but NOT to include _______. a. They are only organisms made of prokaryotic cells b. They do not have a nuclear membrane c. They produce sexually with parent producing two identical daughter cells d. They have a single circular DNA 70. When the temperature of the body is greater than the surroundings, how does the body maintain homeostasis? a. By conduction b. By manual exercise c. By perspiration d. By radiation 71. Which of the following is considered multicellular? a. Embryo b. Fertilized egg c. Egg cell d. Sperm cell 72. Which sphere on earth life exists? a. Stratosphere b. Biosphere c. Lithosphere d. Atmosphere 73. Which of the following is true of Phylum Chordata? I. Presence of notochord that provides skeletal support II. Pharyngeal slits that have become modified for gas exchange III. Dorsal hollow nerve cord that develops into the central nervous system a. II and III b. I and II c. I and III d. I, II and III c. I and III d. I, II and III 75. Which of the following is responsible for formation of blood cells? a. Cartilage b. Bone marrow c. Joints d. Tendons 76. Which of the choices is a dicot? a. Sugarcane b. Grass c. Coconut d. mango 74. Which of the following is true of mammals? I. They have three chambered heart II. They produce milk for the young III. They are warm blooded a. I and II b. II and III 77. DNA replication involves unwinding two strands of parent DNA, copying each strand to synthesize complementary strands, and releasing the parent and daughter DNA. Which of the following accurately describes this process? a. This is an anabolic process c. This is both anabolic and catabolic b. This is a catabolic process d. This is a metabolic process but is neither anabolic or catabolic 78. Which of the choices is a monocot? a. Guava b. Banana c. star apple 79. The following are functions of plant’s roots except: a. Absorbing water and minerals b. Providing stable foundation for growth c. Breaking down food into nutrients d. anchoring the plant in the soil d. gumamela 80. A plant placed in an airtight glass container and watered without allowing air into and out of the container will eventually die because of the lack of a. Oxygen b. Water c. light d. carbon dioxide 81. According to Rutherford’s calculations, the volume of an atom is mostly _____ a. positive charged particles. c. neutrally charged particles. b. negative charged particles. d. empty space 82. The process which is not a type of mechanical disintegration is ____? a. Frost wedging b. Oxidation c. Abrasion d. Roof penetration