To understand gap junction activity in cancer cells, you do two experiments. First you inject a single normal cell in a group of normal cells that are surrounded by cancer cells with a dye. You observe that the dye spreads to the surrounding normal cells only (a). Then you inject a single cancer cell with the same dye and observe that the dye does not spread to any of the surrounding cells (b). la) Microinjed Suorescent dye gray Normal cell Fluorescent cell Cancerous ceļl white Ib) Fluorescent cell Which of the following is a logical interpretation of this experimental result ? O Fluorescent dyes are too big to move through gap junctions O Cancer cells have less actin than other cells O Cancer cells have increased gap junction activity O Cancer cells have reduced gap junction activity.
Cell Structure
The knowledge and concept about the structure of the cells have changed constantly over the past years. Primarily the scientist defines the cells as a simple membranous sac with fluids and some particles. Researches have now revealed that the cell is the more complex and basic unit of life. There are different types of cells and they also differ in shape and structure. The basic three parts of a cell are cell membrane, cytoplasm, and organelle.
Plant Cell
The smallest functional unit of a living organism is known as the cell. It is composed of cytoplasm enclosed by an outer layer known as the cell membrane. A cell is classified as a prokaryotic cell and a eukaryotic cell. A prokaryotic cell does not contain a nucleus, and the genetic material is freely suspended in the cell cytoplasm; for example, bacteria are composed of a prokaryotic cell. Whereas a eukaryotic cell contains a nucleus and membrane-bound cell organelles with a specific function, plants and animal cells are examples of eukaryotic cells.
Plant Cell Types
Plants are made up of a variety of cell types that include both living and dead cells. These cells provide them mechanical and structural support along with the growth of plants. Plant tissue is a group or collection of cells, which are similar in structure and work together to accomplish a specific function. Plant cells are most similar to animal cells, both being eukaryotic cells.
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