Past Questions on Plant Structure Note: You need to be able to draw and label all the diagrams in this worksheet for your exam. Name the parts labelled B, C and E. C E Give one main function each for the parts A and D and E D E Name the tube-like tissue found in part C in which water moves. The diagram shows the internal structure of a leaf. Name the one tissue type that is found at both V and Y. The cells at W contain many organelles that carry out photosynthesis. Suggest why the cells at W contain more of these organelles than the cells at X... At layer X, gases can diffuse throughout the leaf. Name one such gas... Name the cells which are responsible for controlling the size of the opening at Z Use the letter A to show the point of entry of carbon dioxide into the Leaf shown Name this point Name a gas that leaves the leaf at this point Use the letter B to show the part of the leaf in which most photosynthesis occurs. Name the structures in plant cells in which photosynthesis occurs. In addition to carbon dioxide what other small molecule is needed for photosynthesis?
Name A, B, C. in the picture of the under surface of a leaf as seen through a microscope. C What is the function of A?.. Name a factor that influences the diameter of A.. Name the apertures in stems that are equivalent to What is a tissue?... Name two vascular tissues found in flowering plants Name two tissues in a section of a dicotyledonous stem that are not vascular tissues. The walls of xylem vessels are reinforced with To which tissue type do A and B below belong?... Identify A and B. What is meant by a vascular tissue?. Name X and Y. X. Y State a function of State a function of B. Where would you expect to find A and B in a leaf?... Tissue A has another function in addition to transport. What is this other function?... Where in a young root would you find tissues A and B?... Name one substance found in the walls of A but not found in the walls of B
The diagrams represent two forms of a vascular plant tissue, as seen under the microscope. Name this vascular tissue.. Identify the two forms of this tissue, A and B. Where precisely is this vascular tissue found in the stem of a young dicotyledonous plant? The diagram shows part of a root of a young plant. On the diagram place the letters A, B, C on it to show the location of each of the following. A = dermal tissue B = ground tissue C = vascular tissue. State three functions of a root. 3 From what part of the embryo plant within the seed does the root develop?. What is a meristem?. Where would you find a meristem in a root?... Name two vascular tissues and give one way in which they differ What is meant by ground tissue?... State a function of ground tissue..
Which of the two diagrams 1 or 2 represents a transverse section of a young root?... State two features of the diagram that indicate it is a root. Name the three different tissue types A, B, C in the diagram. 3 The diagram shows part of a transverse section through a dicotyledonous stem. Identify each of the following by placing the appropriate letter on the diagram: phloem P, ground tissue G, xylem X,dermal tissue D. In which of the tissues that you have identified are sugars mainly transported? State a function of Dermal Tissue.. The diagram shows a transverse section through the stem of a monocotyledonous (monocot) plant. What is meant by the term monocotyledonous?.. Give an example of a monocotyledonous plant... Name the structures labelled A. How do you know from the diagram that the section is taken from(i) a stem? (ii) a monocot? How are the veins arranged in the leaves of monocots?... How does the vein arrangement in the leaves of dicot plants differ from that in monocots.
Answer the following questions in relation to how you prepared and examined with a microscope a transverse section (TS)of a dicotyledonous stem. Name the plant that you used What did you use to cut the section?... State one reason why you used an herbaceous stem rather than a woody one. Why is it desirable to cut the section as thinly as possible?... Describe in detail how you prepared a microscope slide of the transverse section of the stem of a dicotyledonous plant. How did you support the stem while you were cutting the section?... How did you transfer the section to the microscope slide?... Give an account of the procedures that you followed, once you had placed the slide on the stage of the microscope, to examine your slide under the microscope. Draw a diagram of the section as seen under the microscope. Label the vascular tissues and ground tissue that can be seen.