Experiment 3 : Plant Histology

Objective

1. to prepare and identify the onion epidermal cells
2. to identify different types of plant tissues
3. to compare the structure and distribution of tissues in monocots and dicots

Exercise 3.1  :  Identification of epidermal cells in onion

Exercise 3.2  :  Structures of plant tissues in plants

Collenchyma

Parenchyma

Dicot

Monocot

Questions

1. You are given two slides of cross section of Angiosperms stems and roots. How would you differentiate between the following?
   a) the stems of monocot and dicot plants
   b) the roots of monocot and dicot plant

2.  Describe the structures and functions of parenchyma, collenchyma and sclenchyma cells

3.  Compare the structure and functions of plant epidermal and animal epitheliail tissues

Experiment 17 : Photosynthesis

Questions

1. What is the function of acetone in the experiment?

   To dessolve the pigment

2. Do the leaf extracts from different plant contain the same pigments? Explain why.

   Nom becouse different pigments absorb at different wavelenght

3. Name the most common pigment which is usually found in many plants.

    Chlorophyll a.