This quiz works best with JavaScript enabled. Home > Science > Biology > Biology – Quiz 43 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biology Quiz 43 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the definition synthetic A) A basic of unit of molecules that can be made into a polymer. B) Made by humans to replace something natural. C) Something made up of things in nature. D) Most important part of the object. Show Answer Correct Answer: B) Made by humans to replace something natural. 2. ..... is located between left vetricle and left atrium. A) Semilunar valve. B) Bicuspid valve. C) Tricuspid valve. D) None of above. Show Answer Correct Answer: B) Bicuspid valve. 3. What causes acid rain? A) High concentrations of sulfuric or nitric acid from pollution. B) Fertilizer use. C) Pesticide use. D) CFCs. Show Answer Correct Answer: A) High concentrations of sulfuric or nitric acid from pollution. 4. During which stage of the cell cycle does the nucleus divide? A) Interphase. B) Mitosis. C) Endocytosis. D) Cytokinesis. Show Answer Correct Answer: B) Mitosis. 5. RNA contains which sugar? A) Deoxyribose. B) Ribose. C) Glucose. D) Fructose. Show Answer Correct Answer: B) Ribose. 6. Which enzyme removes the RNA primer during replication? A) RNA primase. B) DNA polymerase I. C) DNA helicase. D) DNA polymerase III. Show Answer Correct Answer: B) DNA polymerase I. 7. A group of similar cells working together form a(n) A) Organ. B) Organ system. C) Tissue. D) None of above. Show Answer Correct Answer: C) Tissue. 8. The variables that are kept the same between all test groups in an experiment. A) Control Variables. B) Experimental Variables. C) Test Variables. D) Special Variables. Show Answer Correct Answer: A) Control Variables. 9. Which of these is true? A) Xylem vessels carry water and dissolved minerals up the plant. B) Phloem tissue carry water and dissolved minerals up the plant. C) Xylem vessels carry dissolved sucrose up and down the plant. D) None of above. Show Answer Correct Answer: A) Xylem vessels carry water and dissolved minerals up the plant. 10. During digestion, the salivary amylase breaks A) Proteins. B) Lipids. C) Carbohydrates. D) Vitamins. Show Answer Correct Answer: C) Carbohydrates. 11. How do viruses reproduce? A) They copy their own genetic material inside a protein coat. B) They kill a cell and reproduce inside it. C) They invade a living cell and use the cell's functions to replicate their genetic material. D) They do not reproduce because they are not technically living things. Show Answer Correct Answer: C) They invade a living cell and use the cell's functions to replicate their genetic material. 12. BIOLOGICAL SPECIES CONCEPT WAS GIVEN BY A) JOHN RAY. B) MILLER. C) LAMARCK. D) LINNAEUS. Show Answer Correct Answer: A) JOHN RAY. 13. A segment of DNA has this sequence:ATA GCA CAT GTA What is the mRNA sequence transcribed from this segment? A) TAT CGT GTA CAT. B) TAT GCT CTA GAT. C) UAU CGU GUA CAU. D) UAU GCU CUA CAU. Show Answer Correct Answer: C) UAU CGU GUA CAU. 14. Red blood cells contain this to carry oxygen A) Globulin. B) Hamaglobin. C) Haemoglobin. D) Haemoglycan. Show Answer Correct Answer: C) Haemoglobin. 15. Which two mixtures can be made with water? A) Elements and compounds. B) Compounds and suspensions. C) Solutions and compounds. D) Solutions and suspensions. Show Answer Correct Answer: D) Solutions and suspensions. 16. What is the result when a single cell reproduces by mitosis? A) Two cells with genetic material identical to the parent cell. B) Two cells with half the genetic material of the parent cell. C) Four cells with half the genetic material to the parent cell. D) Four cells with genetic material identical to the parent cell. Show Answer Correct Answer: A) Two cells with genetic material identical to the parent cell. 17. Bauhinia variegata is the scientific name of? A) Onion. B) Orchid tree. C) House Crow. D) Frog. Show Answer Correct Answer: B) Orchid tree. 18. Adding nitrogen to a field will make A) Crops yield better. B) Crops yield worse. C) Will not effect yield of crops. D) None of above. Show Answer Correct Answer: A) Crops yield better. 19. What is the function of the mitochondria? A) Structure that manufactures ribosomes. B) Structures that converts nutrients to energy. C) Stack of membranes that packages chemicals. D) Structure that contains DNA and directs the cell. Show Answer Correct Answer: B) Structures that converts nutrients to energy. 20. Where does the combining of oxygen and haemoglobin take place? A) Lungs. B) Heart. C) Stomach. D) Body. Show Answer Correct Answer: A) Lungs. ← 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