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HISTOLOGY AND ANATOMY OF FLOWERING PLANTS
Study Material
HISTOLOGY AND ANATOMY OF FLOWERING PLANTS
Very Short Answer Questions
Q1. The transverse section of a plant material shows the following anatomical features - (a) the vascular bundles are conjoint, scattered and surrounded by a sclerenchymatous bundle sheaths.(b) phloem parenchyma is absent. What will you identify it as?
Q2. Why are xylem and phloem called complex tissues?
Q3. How is the study of plant anatomy useful to us?
Q4. Protoxylem is the first formed xylem. If the protoxylem lies radially next to phloem, what kind of arrangement of xylem would you call it? Where do you find it?
Q5. What is the function of phloem parenchyma?
Q6. (a). What is present on the surface of the leaves which helps the plant to prevent loss of water but is absent in roots? (b).What is the epidermal cell modification in plants which prevents water loss?
Q7. Which part of the plant would show the following?(a). Radial vascular bundle (b). Polyarch xylem (c). Well developed pith (d). Exarch xylem
Q8. What are the cells that make the leaves curl in plants during water stress? Give an example.
Q9. What constitutes the vascular cambial ring?
Q10. Give one basic functional difference between phellogen and phelloderm.
Q11. If one debarks a tree, what parts of the plant are removed?
Q1. State the location and function of different types of meristems.
Q2. Cut a transverse section of young stem of a plant from your garden and observe it under the microscope. How would you ascertain whether it is a monocot stem or a dicot stem? Give reasons.
Q3. What is periderm? How does periderm formation take place in the dicot stems?
Q4. A transverse section of the trunk of a tree shows concentric rings which are known as annual rings. How are these rings formed? What is the significance of these rings?
Q5. What is the difference between lenticels and stomata?
Q6. Write the precise function of (a). Steve tube (b). Interfasicular cambium (c). Collenchyma (d). Sclerenchyma
Q7. The stomatal pore is guarded by two kidney shaped guard cells. Name the epidermal cells surrounding the guard cells. How does a guard cell differ from an epidermal cell? Use a diagram to illustrate your answer.
Q8. Point out the differences in the anatomy of leaf of peepal (Ficus religiosa) and maize (Zea mays). Draw the diagrams and label the differences.
Q9. Cork cambium forms tissues that form the cork. Do you agree with this statement? Explain.
Q10. Name the three basic tissue systems in the flowering plants. Give the tissue names under each system.
Q1. Explain the process of secondary growth in the stems of woody angiosperms with the help of schematic diagrams. What is its significance?
Q2. Draw illustrations to bring out the anatomical differences between (a). Monocot root and Dicot root (b). Monocot stem and Dicot stem
Q3. What are simple tissues? Describe various types of simple tissues
Q4. What are complex tissues? Describe various types of complex tissues
Q5. Describe the internal structure of dorsiventral leaf with the help of labelled diagram.
Q6. Describe the internal structure of an isobilateral leaf with the help of labelled diagram.
Q7. Distinguish between the following: (a). Exarch and endarch condition of protoxylem (b). Stele and vascular bundle. (c). Protoxylem and metaxylem (d). Interfasicular cambium and Intrafasicular cambium (e). Open and closed vascular bundles (f). Stem ha
Q8. What is stomatal apparatus? Describe the structure of stomata with a labeled diagram.
Q9. Describe the T.S of a dicot stem.
Q10. Describe the T.S of monocot stem.
Q11. Describe the internal structure of a dicot root.
Q12. Describe the internal structure of a monocot root.
Q1. Name the various kinds of cell layers which constitute the bark.
Q2. A student estimated the age of a tree to be about 300 years. How did he anatomically estimate the age of this tree?
Q3. Assume that you have removed the duramen part of a tree. Will the tree survive or die?