This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Biology – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biology Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is Zoology? A) Scientific study of the behavior, structure, physiology, classification, and distribution of animals. B) Study of plant cells. C) Study of the human brain. D) Scientific study about how biting your nails hurts your brain. Show Answer Correct Answer: A) Scientific study of the behavior, structure, physiology, classification, and distribution of animals. 2. This piece of equipment is used to mix liquids together. A) Glass stirring rod. B) Probe. C) Test tube. D) Scalpel. Show Answer Correct Answer: A) Glass stirring rod. 3. What is the branch of biology that deals with the relations of organisms to one another and to their physical surroundings? A) Ecology. B) Virology. C) Genetics. D) Zoology. Show Answer Correct Answer: A) Ecology. 4. What is the function of Vitamins and Minerals? A) Provides energy and protects body against disease. B) Supports healthy growth. C) Provides rich source energy. D) Protects against body against disease. Show Answer Correct Answer: D) Protects against body against disease. 5. The sandwich model, is a phospholipid bilayer between two layers of ..... was suggested by ..... scientists A) Proteins, Gorter and Grendel. B) Lipids, Gorter and Grendel. C) Proteins, Singer and Nicolson. D) Proteins, Daveson and Danelli. Show Answer Correct Answer: D) Proteins, Daveson and Danelli. 6. An increase in which factor would decrease the rate of transpiration? A) Humidity. B) Wind. C) Temperature. D) Light. Show Answer Correct Answer: A) Humidity. 7. The branch of Biology which deals with the study of the functions of different parts of living organisms is called A) Embryology. B) Biotechnology. C) Physiology. D) Histology. Show Answer Correct Answer: C) Physiology. 8. The ..... is the basic unit of sturucture and function of organisms A) Atom. B) Cell. C) Matter. D) All other answers are correct. Show Answer Correct Answer: B) Cell. 9. A rigid supporting layer that surrounds the cells of plants and some other organisms A) Cell membrane. B) Cell wall. C) Nucleus. D) Cytoplasm. Show Answer Correct Answer: B) Cell wall. 10. Which of the following is not found in an animal cell? A) Cell membrane. B) Mitochondria. C) Chloroplast. D) Nucleus. Show Answer Correct Answer: C) Chloroplast. 11. What term is given to describe the 2 name naming system? A) Dichotmous key. B) Binomial nomenclature. C) 2 scientific names. D) Binomial key. Show Answer Correct Answer: B) Binomial nomenclature. 12. Why don't cells just stretch when you grow, instead of making copies of themselves? A) The muscles in the cells can't stretch that far. B) The lysosomes don't want to work so hard. C) The cell membrane doesn't like the feeling of stretching. D) The cell won't be able to bring in food fast enough or get waste out fast enough. Show Answer Correct Answer: D) The cell won't be able to bring in food fast enough or get waste out fast enough. 13. Plant absorbs water through the ..... A) Stem. B) Roots. C) Leaves. D) All of the above. Show Answer Correct Answer: B) Roots. 14. A relationship that occurs when individuals of different species live together in a close and long-term relationship ..... A) Interdependent Relationship. B) Symbiosis. C) Parasitism. D) Mutualism. Show Answer Correct Answer: B) Symbiosis. 15. Which of the following gives the most accurate summary of the gene-expression process, also known as the Central Dogma of Biology? A) DNA $\rightarrow$ tRNA $\rightarrow$ mRNA $\rightarrow$ amino acid $\rightarrow$ protein. B) DNA $\rightarrow$ mRNA $\rightarrow$ tRNA $\rightarrow$ codon $\rightarrow$ amino acid. C) DNA $\rightarrow$ anticodon $\rightarrow$ codon $\rightarrow$ amino acid. D) DNA $\rightarrow$ mRNA $\rightarrow$ tRNA $\rightarrow$ amino acid $\rightarrow$ protein. Show Answer Correct Answer: D) DNA $\rightarrow$ mRNA $\rightarrow$ tRNA $\rightarrow$ amino acid $\rightarrow$ protein. 16. Which of the following DOES NOT require activation of gene expression (transcription and translation)? A) Production of auxin. B) Production of expansins. C) Influx of water. D) Activation of proton pumps. Show Answer Correct Answer: C) Influx of water. 17. In a chemical reaction, ..... are what you have at the end A) Molecules. B) Products. C) Substances. D) Reactants. Show Answer Correct Answer: B) Products. 18. It is the study of different types of body functions and processes. A) Morphology. B) Ecology. C) Cytology. D) Physiology. Show Answer Correct Answer: D) Physiology. 19. Cross Two Homozygous plants ( RRYY x rryy ) R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds What percent will have Round and Yellow seeds? A) 0%. B) 50%. C) 100%. D) 25%. Show Answer Correct Answer: C) 100%. 20. Which type of cell has many lobes to its nucleus A) Neutrophil. B) Lymphocyte. C) T cell. D) B cell. Show Answer Correct Answer: A) Neutrophil. 21. Which of the following is/are part of the carpel? I. antherII. stigmaIII. style A) I only. B) II and III only. C) I and II only. D) I, II and III. Show Answer Correct Answer: B) II and III only. 22. A dihybrid cross shows the possible outcomes of ..... A) Two alleles. B) Two parents. C) Two traits/characters. D) A self pollination. Show Answer Correct Answer: C) Two traits/characters. 23. ..... means to make something smaller. A) Reduce. B) Reuse. C) Recycle. D) None of above. Show Answer Correct Answer: A) Reduce. 24. Includes DNA and RNA A) Nucleic Acids. B) Carbohydrates. C) Proteins. D) Lipids. Show Answer Correct Answer: A) Nucleic Acids. 25. In animal cells a pair of ..... is located at the center of the ..... A) Microtubules, centrioles. B) Centrosome, microtubules. C) Centrioles, centrosome. D) Centrosome, centrioles. Show Answer Correct Answer: C) Centrioles, centrosome. 26. An interaction between organisms in which both organisms benefit from the relationship A) Mutualism. B) Commensalism. C) Parasitism. D) Predator-prey. Show Answer Correct Answer: A) Mutualism. 27. Cells that have a true nucleus are called ..... A) Multicellular. B) Prokaryotes. C) Eukaryotes. D) Unicellular. Show Answer Correct Answer: C) Eukaryotes. 28. A single leaf blade with a bud at the base of the leaf stem A) Simple. B) Compound. C) Both. D) None of above. Show Answer Correct Answer: A) Simple. 29. When the death rate rises and the birth rate lowers ..... A) Population increases. B) Population decreases. C) Population stays the same. D) All of these. Show Answer Correct Answer: B) Population decreases. 30. Which of the following statement is not true about the function of lymphatic system? A) Transport fatty acid and glycerol molecules. B) Produce antibodies. C) Returns the interstitial fluid back into circulatory system. D) Transports glucose and amino acid molecules. Show Answer Correct Answer: D) Transports glucose and amino acid molecules. 31. When water evaporates out of the leaf's stomata it is called A) Transpiration. B) Transport. C) Photosynthesis. D) Xylem. Show Answer Correct Answer: A) Transpiration. 32. The cell membrane is selectively permeable, which means ..... A) All materials can enter and leave the cell. B) Certain things can enter while others cannot. C) The cell manually sorts through all materials. D) Only certain cells can interact with the cell. Show Answer Correct Answer: B) Certain things can enter while others cannot. 33. Where is phloem tissue found in a stem? A) On the side facing the epidermis in the vascular bundle. B) One the side facing the pith in the vascular bundle. C) Distributed with some facing the epidermis and some facing the pith. D) Only in the middle of the vascular bundle. Show Answer Correct Answer: A) On the side facing the epidermis in the vascular bundle. 34. A symbiotic relationship where both organisms benefit. A) Mutualism. B) Predation. C) Commensalism. D) Parasitism. Show Answer Correct Answer: A) Mutualism. 35. What happens in the lytic cycle? A) The spacecraft shaped virus attaches to the host cell then leaves. B) The spacecraft virus kills the host cell. C) The spacecraft shaped virus attaches to the host cells and as it leaves it kills the host cell. D) The spacecraft virus attaches to the host cell injects DNA as the virus leaves it kills the host cell. Show Answer Correct Answer: D) The spacecraft virus attaches to the host cell injects DNA as the virus leaves it kills the host cell. 36. Which order is correct in occurrence? A) Pollination, seed dispersal, fertilization. B) Seed dispersal, fertilization, pollination. C) Pollination, fertilization, seed dispersal. D) Fertilization, pollination, seed dispersal. Show Answer Correct Answer: C) Pollination, fertilization, seed dispersal. 37. What is the purpose of photosynthesis? A) Release carbon dioxide. B) Make light. C) Make glucose. D) Make ATP. Show Answer Correct Answer: C) Make glucose. 38. What are the cells that make up Phloem? A) Spiracles. B) Tracheary Elements. C) Sieve Tube Cells. D) Vessel Cells. Show Answer Correct Answer: C) Sieve Tube Cells. 39. All the organisms that live and interact in an ecosystem A) Interdependent. B) Community. C) Habitat. D) Population. Show Answer Correct Answer: B) Community. 40. A relationship in which two organisms are mutually dependent on each other to survive. A) Interdependent Relationship. B) Parasitism. C) Mutualism. D) Commensalism. Show Answer Correct Answer: A) Interdependent Relationship. 41. It is the study of morphological, organizational, biochemical, physiological, genetic, developmental, pathological and evolutionary aspects of cell and its components. A) Ecology. B) Cell biology. C) Physiology. D) Histology. Show Answer Correct Answer: B) Cell biology. 42. ..... are the smallest blood vessels. A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 43. In which stage in meiosis is the chromosome number reduced from diploid to haploid? A) During pairing of chromosomes in the first division of meiosis. B) During pairing of chromosomes in the second division of meiosis. C) When chromosomes move to opposite ends of the cell during the second division of meiosis. D) When chromosomes move to opposite ends of the cell during the first division of meiosis. Show Answer Correct Answer: C) When chromosomes move to opposite ends of the cell during the second division of meiosis. 44. It was originally estimated by scientists that the carrying capacity of humans on Earth was approximately 1 billion people. The population of Earth is now OVER 7 billion people. What is the best EXPLANATION for this? A) Humans have greatly exceeded their carrying capacity. B) Humans now consume less resources than they did previously. C) Humans have become more efficient in producing and replenishing food resources. D) The Earth has continued to grow at the same rate as the human population. Show Answer Correct Answer: C) Humans have become more efficient in producing and replenishing food resources. 45. It is the study of internal structure which can be observed with unaided eye after dissection. A) Morphology. B) Anatomy. C) Embryology. D) Physiology. Show Answer Correct Answer: B) Anatomy. 46. Use the ..... focuses the image under low power. A) Coarse adjustment knob. B) Fine adjustment knob. C) Revolving nosepiece. D) Arm/neck. Show Answer Correct Answer: A) Coarse adjustment knob. 47. What is the name for the structures that allow flow of material between phloem cells? A) Sieve cell. B) Trachieds. C) Sieve plate. D) Cellulose. Show Answer Correct Answer: C) Sieve plate. 48. Cells are measured in what unit? A) Centimeters. B) Millimeters. C) Inches. D) Micrometers. Show Answer Correct Answer: D) Micrometers. 49. The males of a bird species do a "dance" and "sing a song" each spring. What is the main purpose of these behaviors? A) To attract female birds. B) To clean their feathers. C) To imprint young birds. D) To scare off young birds. Show Answer Correct Answer: A) To attract female birds. 50. The enzyme that helps in digestion of carbohydrates is A) Pepsin. B) Lipase. C) Amylase. D) Renin. Show Answer Correct Answer: C) Amylase. 51. What are Annelids? A) Organisms without septa. B) Segmented organisms. C) Small vertebrates. D) A type of amphibian. Show Answer Correct Answer: B) Segmented organisms. 52. Which micronutrient can cause toxicity if too much is found in a plant? A) Chlorine (Cl). B) Iron (Fe). C) Boron (B). D) Zinc (Zn). Show Answer Correct Answer: A) Chlorine (Cl). 53. All fish, all birds, all mammals are ..... A) Animals with internal fertilization. B) Carnivores. C) Vertebrates. D) Warm blooded animals. Show Answer Correct Answer: C) Vertebrates. 54. Which of the following plant cells has an oblong shape? A) Palisade cell. B) Companion cell. C) Root hair cell. D) Epidermal cell. Show Answer Correct Answer: A) Palisade cell. 55. If worldwide deforestation is not regulated, what could most likely result? A) Acid rain could lower the pH of rivers and lakes to dangerous levels for aquatic life. B) CO2 levels in the atmosphere could increase and contribute to global warming problems. C) Plants and animals could become better adapted to living in desert conditions. D) Future generations of humans could have an excess of wood and paper products. Show Answer Correct Answer: B) CO2 levels in the atmosphere could increase and contribute to global warming problems. 56. Which is the only structure you would expect to see when examining a prokaryotic cell with a compound light microscope? A) Mitochondria. B) Cell membrane. C) Nucleus. D) Chloroplast. Show Answer Correct Answer: B) Cell membrane. 57. Heart is made up of A) Cardiac muscle. B) Smooth muscle. C) Skeletal muscle. D) None of above. Show Answer Correct Answer: A) Cardiac muscle. 58. Maintaining a stable internalenvironment is called A) Evenness. B) Equilibrium. C) Homeostasis. D) Balance. Show Answer Correct Answer: C) Homeostasis. 59. Chordates that have notochord in larval tail A) Cephalochordata. B) Balanoglossus. C) Hemichordata. D) Urochordata. Show Answer Correct Answer: D) Urochordata. 60. What does it mean that a cell membrane is semi-permeable? A) It allows all substances in. B) It allows some substances in. C) It allows nothing in. D) None of above. Show Answer Correct Answer: B) It allows some substances in. Next →Related QuizzesScience QuizzesGeneral Knowledge QuizzesBiology Quiz 2Biology Quiz 3Biology Quiz 4Biology Quiz 5Biology Quiz 6Biology Quiz 7Biology Quiz 8Biology Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books