Topic 3- Cells and Transport 1. All of the following are true regarding cells except? A) All cells have genetic material B) All cells have cell walls C) All cells have plasma membranes D) All cells can divide to form new cells 2. What is a similarity between all bacteria and plants? A) They both have a nucleus B) They are both composed of cells C) They both have chloroplasts D) They both lack a cell wall 3. The diagram below represents levels of organization in living things. Which term would best represent X? A) human B) tissue C) stomach D) chloroplast 4. An ameba, a one-celled organism, can move, ingest, and transport materials within the cell, because it has A) organs B) organelles C) tissues D) systems 5. What is the main function of a vacuole in a cell? A) storage B) coordination C) synthesis of molecules D) release of energy 6. A photograph of human cells as seen with a compound light microscope is shown below. A cell structure is labeled A. Structure A is most likely a A) mitochondrion that synthesizes food for the cell B) nucleus that is the site of food storage C) mitochondrion that absorbs energy from the Sun D) nucleus that is responsible for the storage of information 7. Which statement best describes the organelles in a cell? A) All organelles are involved directly with communication between cells. B) Organelles must work together and their activities must be coordinated. C) Organelles function only when there is a disruption in homeostasis. D) Each organelle must function independently of the others in order to maintain homeostasis. 8. Which cell structures are correctly paired with their functions? A) The mitochondria produce enzymes, and ribosomes transport them. B) The ribosomes make proteins, and the nucleus stores genetic information. C) The cell membrane make enzymes, and cytoplasm transports them. D) The vacuole stores genetic information, and chloroplasts make proteins. 9. Which structures carry out life functions within cells? A) tissues B) organ systems C) organelles D) organs
Base your answers to questions 10and 11on the information and diagram below and on your knowledge of biology. The diagram represents a cell. 10.Which structure is responsible for the synthesis of ATP? A) A B) B C) C D) D 11.Which structure is responsible for the passage of materials into and out of the cell? A) A B) B C) C D) D 12. The letters in the diagram below indicate some parts of a cell. The function of which cell part is most similar to that of the human excretory system? A) A B) B C) C D) D 13. Within which structure shown in the diagram below are energy-rich organic compounds used to produce ATP? 14. A characteristic common to both diffusion and active transport is that A) enzymes are required B) oxygen is moved across a membrane C) ATP is needed D) the movement of molecules occurs 15. The concentration of potassium is higher in red blood cells than in the surrounding blood plasma. This higher concentration is maintained by the process of A) circulation B) diffusion C) excretion D) active transport 16. Which substance can enter a cell by diffusion without having to be digested? A) water B) protein C) starch D) fat A) 1 B) 2 C) 3 D) 4
17. Some human structures and their functions are listed below. In a single-celled organism such as an amoeba, all these functions can be performed by the A) nucleus B) ribosomes C) mitochondria D) cell membrane 18. The diagram below represents a cell and some molecules in its environment. Which molecule would require the use of energy in order to be brought into the cell? A) 1 B) 2 C) 3 D) 4 19. A substance is most likely to diffuse into a cell when A) it is a large organic food molecule such as protein or starch B) it is enclosed in an organelle such as a vacuole C) the concentration of the substance is greater outside the cell than inside D) the ph of the substance is greater than the ph of the cell 20. Draw an arrow to indicate, one part of the plant cell below that would not be found in an animal cell. The tip of the arrow must touch the part being identified.
21. Just like complex organisms, cells are able to survive by coordinating various activities. Complex organisms have a variety of systems, and cells have a variety of organelles that work together for survival. Describe the roles of two organelles. In your answer be sure to include: a the names of two organelles and the function of each b an explanation of how these two organelles work together c the name of an organelle and the name of a system in the human body that have similar functions 22. The diagram below represents a cell and several molecules. The number of molecules shown represents the relative concentration of the molecules inside and outside of the cell. 23. The diagram below shows molecules represented by X both outside and inside of a cell. Molecule B could enter the cell as a direct result of A) digestion B) diffusion C) active transport D) enzyme production A process that would result in the movement of these molecules out of the cell requires the use of A) DNA B) ATP C) antigens D) antibodies 24. The diagram below shows the relative concentration of molecules inside and outside of a cell. Which statement best describes the general direction of diffusion across the membrane of this cell? A) Glucose would diffuse into the cell. B) Protein would diffuse out of the cell. C) Carbon dioxide would diffuse out of the cell. D) Oxygen would diffuse into the cell.
25. Which row in the chart below best describes the active transport of molecule X through a cell membrane? 27. The diagram below represents a cell in water. Formulas of molecules that can move freely across the cell membrane are shown. Some molecules are located inside the cell and others are in the water outside the cell. A) 1 B) 2 C) 3 D) 4 26. Base your answer to the following question on In the diagram below, the dark dots indicate small molecules. These molecules are moving out of the cells, as indicated by the arrows. The number of dots inside and outside of the two cells represents the relative concentrations of the molecules inside and outside of the cells. Based on the distribution of these molecules, what would most likely happen after a period of time? A) The concentration of O2 will increase inside the cell. B) The concentration of CO2 will remain the same inside the cell. C) The concentration of O2 will remain the same outside the cell. D) The concentration of CO2 will decrease outside the cell. ATP is being used to move the molecules out of the cell by A) cell A, only B) cell B, only C) both cell A and cell B D) neither cell A nor cell B
Base your answers to questions 28 and 29 on the diagram below of sugar in a beaker of water. 28. In lab setup B, structure Z prevents the movement of sugar molecules into side 1. Which part of a living cell serves the same purpose as structure Z? 29. What process accounts for the change shown in lab setup A? 30. Base your answer to question on the diagram below and on your knowledge of biology. In a cell, a variety of structures perform specific functions and interact to maintain homeostasis. The diagram below represents a typical cell with three cell structures labeled 1, 2, and 3. Select one cell structure labeled in the diagram and write its number in the space below. Explain how the cell structure you selected helps maintain homeostasis in a cell. In your answer, be sure to: identify the cell structure you selected state one function of this cell structure identify one substance that is often associated with the cell structure you selected and state how that substance is associated with the cell structure identify one other cell structure and explain how it interacts with the cell structure you selected to maintain homeostasis in the cell
Base your answers to questions 31 through 33 on on the information below and on your knowledge of biology. The diagrams represent two different cells and some of their parts. The diagrams are not drawn to scale. 31. Which statement best describes these cells? A) Cell B lacks vacuoles while cell A has them. B) DNA would not be found in either cell A or cell B. C) Both cell A and cell B use energy released from ATP. D) Both cell A and cell B produce antibiotics. 32. Identify the organelle labeled X in cell B. 33. Identify an organelle in cell A that is the site of autotrophic nutrition. Base your answers to questions 34 through 36 on the diagrams below of two cells, X and Y, and on your knowledge of biology. 34. Identify one process that is carried out in cell Y that is not carried out in cell X. 35. Select one lettered organelle and write the letter of that organelle in the space below. Identify the organelle you selected. 36. State one function of the organelle that you identified in the previous question.