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Put the following steps of Koch's postulates in order: a. The suspected infectious agent must be isolated and grown outside the host. b. The suspected infectious agent causes the disease when it is introduced to a healthy, experimental host. c. The suspected infectious agent must be found in every case of the disease.
On the outside of the cell is a cell wall, but it is not made of cellulose. Inside this is a membrane enclosing the cytoplasm. A yeast cell contains a nucleus, like those in plant and animal cells. There are mitochondria in yeast cells.There are no chloroplasts in yeast cells. Yeast cells do contain ribosomes, the same size as ribosomes in animal and plant cells. Some of these yeast cells have small outgrowths-buds-so they are about to reproduce.Yeast cell (sectional view). - click to label.here are no chloroplasts in yeast cells. Yeast cells do contain ribosomes, the same size as ribosomes in animal and plant cells. Some of these yeast cells have small outgrowths-buds-so they are about to reproduce. Yeast cell (sectional view).