When I learned biology at high school, the textbook clearly stated — as one of the many differences between animal and plant cells — that the Golgi apparatus is present in animal cells, whereas it is absent from plant cells.

Summary. The Golgi apparatus is central to the growth and division of the plant cell through its roles in protein glycosylation, protein sorting, and cell wall synthesis. The structure of the plant Golgi reflects the relative importance of these roles.

Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes.

Yes. Most bacteria are too small to be seen without a microscope, but in 1999 scientists working off the coast of Namibia discovered a bacterium called Thiomargarita namibiensis (sulfur pearl of Namibia) whose individual cells can grow up to 0.75mm wide.

Tests used to identify Gram Positive Bacteria

• Catalase Test.
• Mannitol Salt Agar (MSA)
• Blood Agar Plates (BAP) Streak-stab technique.
• Taxos P (optochin sensitivity testing)
• Taxos A (bacitracin sensitivity testing)
• CAMP Test.
• Bile Esculin Agar.
• Nitrate Broth.

A dichotomous key is a common tool used by biologists and other naturalists to categorize an unknown organism. Dichotomous keys generally identify large organisms, such as plants and animals, because their characteristics are easily seen by the naked eye.

Bacterial Structure The numbered parts are: (1) pilus, (2) plasmid, (3) ribosome, (4) cytoplasm, (5) cytoplasmic membrane, (6) cell wall, (7) capsule, (8) nucleoid, and (9) flagellum (Source: LadyofHats [Public domain] via Wikimedia Commons). One of the most important structures of a bacterial cell is the cell wall.