This quiz works best with JavaScript enabled. Home > Science > Biology > Biology – Quiz 51 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biology Quiz 51 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Find total magnification for:Eyepiece = 10X Objective lens = 4X A) 4x. B) 6x. C) 14x. D) 40x. Show Answer Correct Answer: D) 40x. 2. Where does photosynthesis take place in the cell? A) Chloroplast. B) Cytoplasm. C) Golgi bodies. D) Mitochondria. E) Nucleus. Show Answer Correct Answer: A) Chloroplast. 3. Most cellular respiration takes place in the A) Nucleus. B) Mitochondria. C) Cytoplasm. D) Krebs cycle. Show Answer Correct Answer: B) Mitochondria. 4. Which are not amphibians? A) Snakes. B) Caecilians. C) Frogs. D) Salamanders. Show Answer Correct Answer: A) Snakes. 5. For a neuron with a resting membrane potential at-70mv, an increase in the movement of sodium ions into the neuron's cytoplasm would result in: A) The depolarization of the neuron. B) The repolarization of the neuron. C) The replacement of potassium ions with sodium ions. D) The replacement of potassium ions with calcium ions. Show Answer Correct Answer: A) The depolarization of the neuron. 6. Decomposers are important in the food chain because they A) Produce their own food using sunlight from the sun. B) Stop the flow of energy from one organism to another. C) They are microscopic and other organisms cannot consume them. D) They break down organisms & recycle nutrients into the soil. Show Answer Correct Answer: D) They break down organisms & recycle nutrients into the soil. 7. Treatment and prevention of diseases in both humans and animals. A) Biomedicine. B) Genetics. C) Biotechnology. D) Medicine and veterinary. Show Answer Correct Answer: D) Medicine and veterinary. 8. When your body tries to keep it's internal conditions within certain limits that is called ..... A) Homeostasis. B) Sleeping. C) Hibernating. D) Running. Show Answer Correct Answer: A) Homeostasis. 9. ..... strengthens and stabilizes the cell membrane. A) Carbohydrates. B) Proteins. C) Phospholipids. D) Cholesterol. Show Answer Correct Answer: D) Cholesterol. 10. Which two animals go through metamorphosis during its life cycle? A) Frog and bird. B) Butterfly and horse. C) Fish and frog. D) Butterfly and frog. Show Answer Correct Answer: D) Butterfly and frog. 11. Which statement best describes the relationship that exists among proteins, DNA, and cells? A) Proteins combine to produce cells, which produce DNA. B) Proteins are made up of DNA, which determines the cells that are produced. C) DNA is made up of proteins, which tell a cell how to function. D) Cells contain DNA, which controls the production of proteins. Show Answer Correct Answer: D) Cells contain DNA, which controls the production of proteins. 12. Each enzyme only has 1 substrate that will fit its active site. What is this called? A) Reusable. B) Catalyst. C) Specific. D) Fragile. Show Answer Correct Answer: C) Specific. 13. It is the study of fertilization, growth, division and differentiation of the zygote into embryo or early development of living beings before the attainment of structure and size of the offspring. A) Socio-biology. B) Entomology. C) Embryology. D) Ecology. Show Answer Correct Answer: C) Embryology. 14. This group of organisms have an exoskeleton, a segmented body, and pairs of jointed appendages. A) Mollusks. B) Arthropods. C) Echinoderms. D) Cnidarians. Show Answer Correct Answer: B) Arthropods. 15. What kind of skin do amphibians have? A) Dry without scales. B) Dry with scales. C) Moist without scales. D) Moist with scales. Show Answer Correct Answer: C) Moist without scales. 16. What will most likely be the result if all of the mitochondria are removed from a plant cell? A) It will be unable to carry out respiration. B) It will lose water through osmosis. C) It will break down the ribosomes in the cell. D) It will be unable to photosynthesize. Show Answer Correct Answer: A) It will be unable to carry out respiration. 17. A hypothesis is ..... A) Testable. B) Based on facts. C) Based on observations. D) A problem to be solved. Show Answer Correct Answer: A) Testable. 18. Cell division results in A) Genetically non identical cells. B) Genetically identical cells. C) None of the above. D) None of above. Show Answer Correct Answer: B) Genetically identical cells. 19. At which point is a biologist most likely to use reasoning? A) While taking observations. B) During hypothesis formulation. C) During data organization. D) None of these. Show Answer Correct Answer: B) During hypothesis formulation. 20. What treatment is most likely to lead to germination? A) Soaking the seeds in a solution of gibberellins. B) Increasing CO2 concentration. C) Increasing light intensity. D) Dehydrating the seeds. Show Answer Correct Answer: A) Soaking the seeds in a solution of gibberellins. ← PreviousNext →Related QuizzesScience QuizzesBiology Quiz 1Biology 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