This document outlines the topics and assignments for a practical lesson on cell morphology and membrane transport. The topics covered include the Cell Theory, organelle structures and functions, cell membrane composition and transport. Homework assignments include drawing the ultrastructure of an eukaryotic cell, drawing a chemical model of the plasma membrane, and classification of organelles. Class work includes observing chloroplast movement in plant cells under a microscope and observing the effects of a hypertonic solution on onion skin cells through plasmolysis.

1. Practical lesson № 2
Morphology of a cell. Structural
components of cytoplasm and a
nucleus.
Cell membranes. Transport of
materials across cell membranes

2. II. Control questions:
1. The Cell Theory in its modern form. Importance
for medicine.
2. Organelles, their structure and functions.
3. Structure and property of cell membrane.
4. Chemical composition of cell membrane.
5. Function of cellular membrane Compartmentcy.
6. General characteristic of transport across cell
membrane.
7. Intercellular contacts.

3. Home work: I. to draw ultrastructure of the
eukaryotic cell.

4. II. To draw the chemical model of a plasmalemma.

5. Classification of organells

6. Non menbrane organells

7. Structure of biological membrane

8. Transport across the membrane

9. Intercellular contacts

10. Auditorial wok (class work)
II. Chloroplasts in cells a leaf of a plant.
Place a part a leaf of an alga in a drop of water on a
microscope slide, cover integumentary glass. Find cells
with a small amount of chloroplasts. Pay attention to
locomotion of cytoplasm. Sketch at the big augmentation
some cells; specify a cellular wall, cytoplasm,
chloroplasts.

11. II. Plasmolisis in plants cells
A. Pell from the onion internal side a skin by the pincers. Cut off a 3-4 mm
of the onionskin by the scissors and prepare provisional specimen.
Examine a specimen with a microscope. During microscopic examination
you observe rectangular long cells. Sketch.
B. Repeat preparation of provisional specimen. Use hypertonic solution in
place of water. Examine a specimen with a microscope during 15 minutes.
Sketch the cells in the hypertonic solution. Mark: cell wall, nucleus,
cytoplasm, cell membrane, vacuole.
A B