BL/CH401 Biochemistry 1 - Lecture 2 - Cell Structure

Typical Cell of Plant Leaf:

Figure 22. Grass Leaf Cell containing Chloroplasts

Plant Cell Structure:
Plant cells contain all the same components as animal cells, but have three important differences.

One difference is the cell wall.

Figure 23. Plant Cell Wall
Plant cell walls are reinforces structures containing cellulose and lignin to make them rigid.

Second difference, plants are autotrophic (energetically self supporting)

Figure 24. Chloroplasts
Plants utilize light energy and chloroplasts contain the chlorophyll and enzymes for carrying out photosynthesis.

Third difference, plant cells have a large vacuole.

Figure 25. Plant Vacuole.
The plant vacuole is a single membrane organelle for storing organic acids, salts, etc.

Figures 3-10; and 13-25 are modified from Lehninger, Biochemistry, ©19??, Worth Publishing Co.

©Wilbur H. Campbell, 1995, 1996; wcampbel@mtu.edu

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