This quiz works best with JavaScript enabled. Home > Science > Biology > Biology – Quiz 53 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biology Quiz 53 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is/are true of nucleosomes? I. They contain six histone proteinsII. They control gene expressionIII. They help in DNA supercoiling A) I only. B) II only. C) II and III only. D) I, II and III. Show Answer Correct Answer: C) II and III only. 2. Plant transports food made in the leaves to ..... A) Roots. B) Stem. C) Flowers. D) All of the above. Show Answer Correct Answer: D) All of the above. 3. Which of the following structures is found in plants cells but not in animal cells? A) Mitochondria. B) Vacuole. C) Nucleus. D) Chloroplast. Show Answer Correct Answer: D) Chloroplast. 4. Things that have all the characteristics of life are known as A) Environments. B) Stimulus. C) Species. D) Organisms. Show Answer Correct Answer: D) Organisms. 5. A fungicide is a chemical that kills fungi. A fungicide dissolved in water was applied to the soil in which a rose plant was growing. It later appeared in the leaves. How did the fungicide reach the leaves? A) Transpiration pull in xylem. B) Facilitated diffusion. C) Translocation in phloem. D) Movement up a water potential gradient. Show Answer Correct Answer: C) Translocation in phloem. 6. In translocation, what directly causes a high hydrostatic pressure at the source? A) Sucrose enters the phloem by active transport. B) Water enters the phloem by osmosis. C) Sucrose leaves the roots by active transport. D) Water enters the roots by osmosis. Show Answer Correct Answer: B) Water enters the phloem by osmosis. 7. Which structure is not a component of all cells? A) Cell wall. B) Cell membrane. C) Genetic material. D) Ribosomes. Show Answer Correct Answer: A) Cell wall. 8. In ....., we study heredity of traits. A) Genetics. B) Botany. C) Zoology. D) Biology. Show Answer Correct Answer: A) Genetics. 9. Living things are made up of units called A) DNA. B) Cells. C) Homeostasis. D) Seeds. Show Answer Correct Answer: B) Cells. 10. The leaf is known as the ..... A) Photogenic organ. B) Photosynthetic organ. C) Photographic organ. D) None of above. Show Answer Correct Answer: B) Photosynthetic organ. 11. Which is one reason scientists produce transgenic organisms? A) To create new species of organisms. B) To control microorganisms in the soil. C) To prevent habitats from being destroyed. D) To treat certain types of diseases. Show Answer Correct Answer: D) To treat certain types of diseases. 12. What is the study of fossil plants? A) Biology. B) Paleobotany. C) Taxonomy. D) Mammalogy. Show Answer Correct Answer: B) Paleobotany. 13. In a cell the energy is stored in A) Mitochondria. B) Plastid. C) Ribosomes. D) Nucleus. Show Answer Correct Answer: A) Mitochondria. 14. Organisms must have a stable environment. A) Energy Use. B) Homeostasis. C) Growth. D) Reproduction. Show Answer Correct Answer: B) Homeostasis. 15. Which of the following is an adaptation of a xerophyte? A) Reduced roots. B) Hairy leaves. C) Many stomata. D) Thin cuticle. Show Answer Correct Answer: B) Hairy leaves. 16. Which animal cell is adapted for its function by having a long axon? A) Nerve cell. B) Sperm cell. C) White blood cell. D) Ciliated cell. Show Answer Correct Answer: A) Nerve cell. 17. When do Poinsettas flower? A) In the summer when days are long and Pfr is high. B) In the winter when days are short and Pfr is high. C) In the winter when days are short and Pfr is low. D) In the winter when days are long and Pfr is high. Show Answer Correct Answer: C) In the winter when days are short and Pfr is low. 18. The variable that is manipulated in an experiment is called the ..... variable A) Independent. B) Dependnt. C) Control. D) Mystery. Show Answer Correct Answer: A) Independent. 19. Protein Synthesis takes place at what organelle? A) Nucleus. B) Mitochondria. C) Ribosome. D) Chloroplast. Show Answer Correct Answer: C) Ribosome. 20. Ribosomes are the cell organelle that A) Break down food to produce energy for the cell. B) Produce proteins for the cell. C) Break down broken cell parts. D) Make food for the cell using the sun's energy. Show Answer Correct Answer: B) Produce proteins for the cell. ← 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