This quiz works best with JavaScript enabled. Home > Science > Biology > Biology – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biology Quiz 21 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Breaks down glucose to release energy for the cell A) Nucleus. B) Lysosomes. C) Mitochondria. D) Vacuole. Show Answer Correct Answer: C) Mitochondria. 2. Which would be the best evidence that a cell is using active transport to move a substance across its cell membrane? A) Substances are moving rapidly across the cell membranes. B) ATP is being rapidly consumed near the cellular membrane. C) Substances are moving from high to low concentrations. D) Substances are moving through channels in the cell membrane. Show Answer Correct Answer: B) ATP is being rapidly consumed near the cellular membrane. 3. Which of the following genotypes is heterozygous? A) Bb. B) BB. C) Bb. D) B. Show Answer Correct Answer: A) Bb. 4. Typically, in carbon compounds, how many bonds does carbon make? A) 3. B) 4. C) 5. D) None of the above. Show Answer Correct Answer: B) 4. 5. Choose the correct sequence of the frog's life cycle A) Froglet, tadpole, frog, and egg. B) Egg, frog, tadpole, and froglet. C) Egg, tadpole, froglet, and frog. D) Tadpole, froglet, frog, and egg. Show Answer Correct Answer: C) Egg, tadpole, froglet, and frog. 6. When a cell is not dividing, and even as it duplicates the DNA in preparation for cell division, each chromosome is in the form a of along thin ..... fiber A) Chromosome. B) Sister chromatid. C) Chromatin. D) None of above. Show Answer Correct Answer: C) Chromatin. 7. Rocks are not living because A) They never move. B) They aren't needed for humans. C) They are not made of cells. D) They don't break down. Show Answer Correct Answer: C) They are not made of cells. 8. The combination of chemical reactions throughwhich an organism builds up or breaks downmaterials as it carries out its life processes is called ..... A) Absorption. B) Metabolism. C) Digestion. D) Consumption. Show Answer Correct Answer: B) Metabolism. 9. Eukaryotic chromomes are made up of A) Centromeres. B) Chromatin. C) Chromatids. D) Centrioles. Show Answer Correct Answer: B) Chromatin. 10. Which of the following are true of hepatocytes? I. they release glucose into the blood or store it as glycogenII. they produce bile saltsIII. their surface contains microvilli A) I and II only. B) I and III only. C) II and III only. D) I, II and III. Show Answer Correct Answer: D) I, II and III. 11. Phosphorus is needed for the production of ..... A) ATP. B) Oxygen. C) Glucose. D) Carbon Dioxide. Show Answer Correct Answer: A) ATP. 12. This is the attachment point between two sister chromatids A) Centromere. B) Centriole. C) Chromatid. D) Chiasma. Show Answer Correct Answer: A) Centromere. 13. "If the concentration of salt increases, then the freezing point of water will decrease." What is the independent variable in this hypothesis? A) Freezing point of water. B) The water. C) Salt concentration. D) The type of salt. Show Answer Correct Answer: C) Salt concentration. 14. The ..... is the basic unit of life A) Organ. B) Cell. C) Atom. D) Tissue. Show Answer Correct Answer: B) Cell. 15. Which statement best describes what will happen if the population of herbivores in the community decreases A) The pop. Of foxes will increase. B) The pop. of hawks will inc. C) The pop. of rabbits will increase. D) The pop. of meadow plants will inc. Show Answer Correct Answer: D) The pop. of meadow plants will inc. 16. Relationships between living organisms and their environment, and how they interact with both living and non-living components in the environment. A) Morphology. B) Palaeontology. C) Biogeography. D) Ecology. Show Answer Correct Answer: D) Ecology. 17. What is the macromolecule that includes enzymes? A) Carbohydrate. B) Protein. C) Lipid. D) Nucleic acid. Show Answer Correct Answer: B) Protein. 18. Which of the following does a plant cell ONLY have? A) Vacuole. B) Chloroplast. C) Centrosome. D) Nucleus. Show Answer Correct Answer: B) Chloroplast. 19. What does mulitcellular mean? A) More than one cell. B) Only one cell. C) Protozoans. D) Bacteria. Show Answer Correct Answer: A) More than one cell. 20. When a farmer sprays a chemical on to crop plants, how does the chemical travel to the roots of the plants? A) In the phloem, by active translocation. B) In the phloem, by transpiration pull. C) In the xylem, by transpiration pull. D) In the xylem, by active translocation. Show Answer Correct Answer: A) In the phloem, by active translocation. ← 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