This quiz works best with JavaScript enabled. Home > Science > Biology > Biology – Quiz 59 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biology Quiz 59 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is a chiasma? A) A point where homologous chromosomes remain in contact during meiosis. B) A point where gene mutations occur. C) A point where the recombination of genetic material always occurs. D) A process of exchanging genes between non-homologous chromatids. Show Answer Correct Answer: A) A point where homologous chromosomes remain in contact during meiosis. 2. Which of the following are NOT true? A) Water's formula is H2O. B) A molecule in which the charges are unevenly distributed is polar. C) In a mixture the compounds and elements are chemically combined. D) Like other molecules, water is neutral. Show Answer Correct Answer: C) In a mixture the compounds and elements are chemically combined. 3. Energy enters an ecosystem and the grass contain 20 calories of energy. The grass is a primary consumer. How much energy is available for a tertiary consumer? A) 2. B) 20. C) 0.2. D) .02. Show Answer Correct Answer: D) .02. 4. Photosynthesis uses sunlight to convert water and carbon dioxide into A) Oxygen. B) Glucose. C) ATP & oxygen. D) Oxygen & glucose. Show Answer Correct Answer: D) Oxygen & glucose. 5. Provide quick energy and serve as structural components of plant cells A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: A) Carbohydrates. 6. What breaks down dead bodies and plant remains? A) Decomposers. B) Producers. C) Sunlight. D) Fred. Show Answer Correct Answer: A) Decomposers. 7. Your mother adds yeast to her bread so it will "rise" . What by-product of anaerobic respiration makes this possible? A) Alcohol. B) Carbon dioxide. C) Lactic acid. D) Oxygen. Show Answer Correct Answer: B) Carbon dioxide. 8. THE LARGEST BOTANICAL GARDEN LOCATED IN A) HOWRAH. B) PUNE. C) MOSCOW. D) KEW. Show Answer Correct Answer: D) KEW. 9. What is a hydrogen bond? A) When one substance is dissolved into another. B) Bonds between water and other molecules. C) A weak intermolecular force. D) Polar molecules that can attract each other. Show Answer Correct Answer: C) A weak intermolecular force. 10. What macromolecule makes up the genetic code? A) Carbohydrate. B) Protein. C) Lipid. D) Nucleic acid. Show Answer Correct Answer: D) Nucleic acid. 11. Why do animals need Nitrogen? A) To build proteins. B) To build fats. C) To make carbohydrates. D) For energy. Show Answer Correct Answer: A) To build proteins. 12. An organism that produces its own food supply from inorganic compounds is called a(an) A) Heterotroph. B) Consumer. C) Detritivore. D) Autotroph. Show Answer Correct Answer: D) Autotroph. 13. Which pair of structures best shows that plant cells have functions different from animal cells? A) Cytoplasm and mitochondria. B) Chloroplasts and cell wall. C) Ribosome and golgi. D) Nucleus and cell membrane. Show Answer Correct Answer: B) Chloroplasts and cell wall. 14. Why do scientists use sampling techniques to gather population data rather than counting everything? A) Scientists are lazy. B) Sampling is more efficient and achievable. C) Sampling is more accurate. D) Scientists prefer estimations. E) Sampling is cheaper. Show Answer Correct Answer: B) Sampling is more efficient and achievable. 15. Which 2 molecules contains the elements C-H-O and function pertains to energy? A) Lipids and Protein. B) Carbohydrates and Nucleic Acids. C) Protein and Carbohydrates. D) Carbohydrates and Lipids. Show Answer Correct Answer: D) Carbohydrates and Lipids. 16. Botany, Zoology, Genetics and Medicine are all parts of this main branch of Science. A) Physical Science. B) Life Science. C) Earth Science. D) Toenail Science. Show Answer Correct Answer: B) Life Science. 17. What kind of cells are made in MEIOSIS? A) Haploid cells. B) Diploid Cells. C) Skin Cells. D) Liver Cells. Show Answer Correct Answer: A) Haploid cells. 18. What describes the phase of quick entry of sodium ions into an axon during an action potential? A) Passive transport. B) Depolarization. C) Ion transport. D) Repolarization. Show Answer Correct Answer: B) Depolarization. 19. Active transport requires ....., moves materials from ....., and goes ..... the concentration gradient. A) No energy, low to high, against. B) ATP, high to low, with. C) ATP, low to high, with. D) ATP, low to high, against. Show Answer Correct Answer: D) ATP, low to high, against. 20. Where is xylem found in the plant? A) Leave $\rightarrow$ roots $\rightarrow$ stem. B) Roots $\rightarrow$ stem $\rightarrow$ leaves. C) Root hairs $\rightarrow$ leaves $\rightarrow$ veins. D) Stem $\rightarrow$ roots. Show Answer Correct Answer: B) Roots $\rightarrow$ stem $\rightarrow$ leaves. ← 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