This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Biology – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biology Quiz 13 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... is a threadlike protein fibre that forms a network on the wound surface to close the wound to prevent excessive blood loss. A) Fibrin. B) Fibrinogen. C) Prothrombin. D) Thrombin. Show Answer Correct Answer: A) Fibrin. 2. Cytosine always pairs with A) Thymine. B) Uracil. C) Adenine. D) Guanine. Show Answer Correct Answer: D) Guanine. 3. Complete the sentence.Pollen fertilises the ovum. This produces ..... A) Zygote. B) Baby plant. C) Ovary. D) Egg. Show Answer Correct Answer: A) Zygote. 4. Comparison of working of lever and limbs of animals will be studied under A) Biochemistry. B) Biometry. C) Bioeconomic. D) Biophysics. Show Answer Correct Answer: D) Biophysics. 5. Fill in the missing word:Nitrogen has to be in the form of? ? ? ? ? for plants to absorb it. A) Nitrates. B) Sulphated. C) Phosphates. D) Carbon. Show Answer Correct Answer: A) Nitrates. 6. Which tissue allows plants to develop wider stems and roots? A) Xylem. B) Lateral meristems. C) Phloem. D) Apical meristems. Show Answer Correct Answer: B) Lateral meristems. 7. One example of a prokaryote is a ..... A) Animal. B) Bacteria. C) Plant. D) Fungus. Show Answer Correct Answer: B) Bacteria. 8. When death rate is equal to birth rate ..... A) Population rapidly increases then becomes stable. B) Population decreases. C) Population stays the same. D) Population increases. Show Answer Correct Answer: C) Population stays the same. 9. What does the word root "Bio" mean? A) Living. B) Existing. C) Life. D) Moving. Show Answer Correct Answer: C) Life. 10. Organs transplant fails if the A) Excess heparin found in blood. B) Recipient is not ready for transplant. C) Organ is perceived as a toxin by the recipient body. D) None of above. Show Answer Correct Answer: C) Organ is perceived as a toxin by the recipient body. 11. Later in cell division, the two sister chromatids of each duplicated chromosome separate and move into two new ..... A) Nuclei. B) Cytoplasms. C) They don't move. D) None of above. Show Answer Correct Answer: A) Nuclei. 12. Which most directly controls the rate at which food is broken down to release energy? A) Nucleic acids. B) Vitamins. C) Enzymes. D) Hormones. Show Answer Correct Answer: C) Enzymes. 13. Biology is the study of .....? A) Animals. B) Plants. C) Bacteria. D) All living things. Show Answer Correct Answer: D) All living things. 14. Which kingdom is multicellular and autotrophic? A) Fungi. B) Animalia. C) Protista. D) Prokaryote. Show Answer Correct Answer: C) Protista. 15. Who discovered cell from a cork made from bark of an Oak tree? A) Robert Brown. B) Carl Watson. C) Robert Hooke. D) Charles Darwin. Show Answer Correct Answer: C) Robert Hooke. 16. It deals with the practical application of living organisms to make substances for the welfare of mankind. A) Entomology. B) Biotechnology. C) Pharmacology. D) Immunology. Show Answer Correct Answer: B) Biotechnology. 17. What charge does water (H2O) have? A) Positive. B) Negative. C) Neutral. D) Positive and negative. Show Answer Correct Answer: C) Neutral. 18. What is the purpose of cytology? A) Management and Control. B) Examines the structure of a cell. C) The examination of cells from the body under a microscope. D) None of above. Show Answer Correct Answer: C) The examination of cells from the body under a microscope. 19. The source of energy plants use to make food A) Air. B) Soil. C) Photosynthesis. D) Sunlight. Show Answer Correct Answer: D) Sunlight. 20. WHAT IS AFTER THE SMALL INTESTINE? A) Pancreas. B) Large intestine. C) Liver. D) Nothing. Show Answer Correct Answer: B) Large intestine. 21. The shortest stage of mitosis. Begins with the two sister chromatids of each pair suddenly part. Each chromatid thus becomes a chromosome. What phase is this? A) Metaphase. B) Prophase. C) Telophase. D) Anaphase. Show Answer Correct Answer: D) Anaphase. 22. In which stage of the cell cycle do most cells spend their lives? A) Interphase. B) Prophase. C) Telophase. D) Metaphase. Show Answer Correct Answer: A) Interphase. 23. Which of the following is NOT true from gram negative bacteria A) Thin peptidoglycan wall. B) Outer lipopolysaccharide membrane. C) Becomes pink or red with gram staining. D) Susceptible to antibiotics like penicillin. Show Answer Correct Answer: D) Susceptible to antibiotics like penicillin. 24. Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable. A) Distance traveled by the ball. B) Height of the ramp. C) Mass of the ball. D) Weight of the ball. Show Answer Correct Answer: C) Mass of the ball. 25. The nucleus and most of the organelles in a neuron are located in the ..... A) Dendrites. B) Cell body. C) Axon. D) Schwann cells. Show Answer Correct Answer: B) Cell body. 26. Which of the following might slow down the rate of photosynthesis in a plant? A) Warm temperatures. B) An overcast, cloudy day. C) A low concentration of oxygen in the air. D) Not enough food available to the plant. Show Answer Correct Answer: B) An overcast, cloudy day. 27. Where are proteins made? A) Muscles. B) Nucleus. C) Outside the nucleus in the cytoplasm. D) None of above. Show Answer Correct Answer: C) Outside the nucleus in the cytoplasm. 28. The information collected during an experiment is called ..... A) Data. B) Observations. C) Inferences. D) Hypotheses. Show Answer Correct Answer: A) Data. 29. Study of GENES and HEREDITY. A) Genetics. B) Entomology. C) Ethology. D) Anatomy. Show Answer Correct Answer: A) Genetics. 30. A consumer may also be called a ..... A) Chemotroph. B) Phototroph. C) Heterotroph. D) Autotroph. Show Answer Correct Answer: C) Heterotroph. 31. After DNA duplication, the chromosomes ..... :each chromatin fiber becomes densely coiled and folded making chromosomes smaller and shorter A) Duplicates. B) Decondensed. C) Condensed. D) Disappear. Show Answer Correct Answer: C) Condensed. 32. All eukaryotic and prokaryotic cells are surrounded by a ..... A) Cell wall. B) Cell membrane. C) Cell envelope. D) Loving, supportive family. Show Answer Correct Answer: B) Cell membrane. 33. Who is father of biology A) Aristotle. B) Charles Darwin. C) Edward Jenner. D) William Harvey. Show Answer Correct Answer: A) Aristotle. 34. Where chemical digestion starts. A) Small intestine. B) Oesophagus. C) Mouth. D) Stomach. Show Answer Correct Answer: C) Mouth. 35. Adenine bonds with ..... A) Cytosine. B) Adenine. C) Guanine. D) Thymine. Show Answer Correct Answer: D) Thymine. 36. Name the following:seed with two cotyledons A) Monocot seeds. B) Dicot seeds. C) Embryo. D) None of above. Show Answer Correct Answer: B) Dicot seeds. 37. Something that is able to make its own food from sunlight is called a(n): A) Heterovore. B) Omnivore. C) Heterotroph. D) Autotroph. Show Answer Correct Answer: D) Autotroph. 38. Which organelle, A to D, is not involved in the production and secretion of enzymes in eukaryotes? A) Smooth endoplasmic reticulum. B) Ribosomes. C) Vesicle. D) Golgi apparatus. Show Answer Correct Answer: A) Smooth endoplasmic reticulum. 39. What molecules do both DNA and RNA contain? A) Uracil. B) Nucleotides. C) Deoxyribose. D) Thymine. Show Answer Correct Answer: B) Nucleotides. 40. DNA molecule segment is:TTACGCAAG The mutated DNA segment is TTCGCAAG. This is an example of ..... mutation. A) Insertion. B) Inversion. C) Substitution. D) Deletion. Show Answer Correct Answer: D) Deletion. 41. Which one of these contain the most energy A) Carbohydrates. B) Polymers. C) Lipids. D) Nucleic acids. Show Answer Correct Answer: A) Carbohydrates. 42. The cell cycle is regulated by A) Cyclins. B) Chromosomes. C) Centromeres. D) None of above. Show Answer Correct Answer: A) Cyclins. 43. What is lost between trophic levels and cannot be recycled? A) Nitrogen. B) Biomass. C) Heat. D) Carbon compounds. Show Answer Correct Answer: C) Heat. 44. Which group to these belong to? slug, snail, clams, octopus A) Mollusks. B) Sponges. C) Arthropods. D) Amphibians. Show Answer Correct Answer: A) Mollusks. 45. Which of the following explains why having sunken stomata reduces the rate of transpiration? A) More water molecules blown away gives a lower concentration gradient. B) More water molecules blown away gives a higher concentration gradient. C) Less water molecules blown away gives a lower concentration gradient. D) Less water molecules blown away gives a higher concentration gradient. Show Answer Correct Answer: C) Less water molecules blown away gives a lower concentration gradient. 46. After the enzyme and substrate bind together and perform the reaction, what does the substrate become? A) An active site. B) An enzyme. C) A product. D) A substrate. Show Answer Correct Answer: C) A product. 47. A species that would cause a major change in an ecosystem if removed from that ecosystem A) Limiting factors. B) Carrying capacity. C) Keystone species. D) Resilience. Show Answer Correct Answer: C) Keystone species. 48. Which is the BEST description of biology? A) The study of humans and animals. B) The study of life and living things. C) The study of health care. D) The study of humans, plants, and animals. Show Answer Correct Answer: B) The study of life and living things. 49. Produces hormones and lipid molecules for cells A) Ribosome. B) Nucleus. C) Rough endoplasmic reticulum. D) Smooth endoplasmic reticulum. Show Answer Correct Answer: D) Smooth endoplasmic reticulum. 50. Holds the objectives, used to switch between magnifications (low, high, and scanning) A) Base. B) Arm. C) Stage. D) Revolving nosepiece. Show Answer Correct Answer: D) Revolving nosepiece. 51. If two different species in an ecosystem both feed on the same type of beetles, then these two species are called ..... A) Prey. B) Parasites. C) Competitors. D) Mutualists. Show Answer Correct Answer: C) Competitors. 52. What is 10% of 55, 000? A) 5, 500. B) 550. C) 55. D) 55, 000. Show Answer Correct Answer: A) 5, 500. 53. What forms the channels and pumps in the phospholipid bilayer? A) Hydrophilic heads. B) Lipids. C) Carbohydrates. D) Proteins. Show Answer Correct Answer: D) Proteins. 54. How do you calculate daily basic energy requirement (BER) A) 5.4*24*body mass (kg). B) 7.4*24*body mass(kg). C) 5.4*12*body mass (kg)?. D) None of above. Show Answer Correct Answer: A) 5.4*24*body mass (kg). 55. Modern classification is based on A) Habitat. B) Food eaten. C) Structure. D) Ecosystems. Show Answer Correct Answer: C) Structure. 56. Which of the organ of plant stated below is used to absorb water? A) Root. B) Stem. C) Leaves. D) Flower. Show Answer Correct Answer: A) Root. 57. BASIC UNIT OF CLASSIFICATION A) GENUS. B) KEY. C) FAMILY. D) SPECIES. Show Answer Correct Answer: D) SPECIES. 58. WHICH OF THE FOLLOWING IS NOT A SYMBIOTIC RELATIONSHIP A) ROOT NODULE WITH Rhizobium. B) Plasmodium in human host. C) LICHEN. D) MYCORRHIZA. Show Answer Correct Answer: B) Plasmodium in human host. 59. Which of the following genotypes is homozygous dominant? A) Aa. B) Aa. C) AA. D) A. Show Answer Correct Answer: C) AA. 60. In over 60% angiosperms pollen grains are shed at this stage ..... A) 2 celled. B) 8 celled 7 nucleate. C) 7 celled 8 nucleate. D) 3 celled. Show Answer Correct Answer: A) 2 celled. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesBiology Quiz 1Biology Quiz 2Biology Quiz 3Biology Quiz 4Biology Quiz 5Biology Quiz 6Biology Quiz 7Biology Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books