What is a micrograph of a cell?
A micrograph is a photo or digital image taken through a microscope to show a magnified image of a specimen. While organelles have identifying structures, specific shapes may vary depending on the location of cross-sections. Prokaryotic Cell Features.
What is the nucleus organelle?
A nucleus is a membrane-bound organelle that contains the cell’s chromosomes. Pores in the nuclear membrane allow for the passage of molecules in and out of the nucleus.
What is the definition of a micrograph?
Definition of micrograph : a graphic reproduction of the image of an object formed by a microscope.
What is the role of the vesicles shown in the micrograph?
The image shows an electron micrograph of pancreatic exocrine cells. What is the function of the vesicles? To move enzymes out of the cell by exocytosis.
What are the 3 main functions of the nucleus?
What is the nucleus?
- The nucleus is an organelle found in most eukaryotic cells, the exception being red blood cells.
- The primary functions of the nucleus are to store the cell’s DNA, maintain its integrity, and facilitate its transcription and replication.
What are 2 functions of the nucleus?
The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information.
What are the function of the nucleus?
The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus. The gel-like matrix in which the nuclear components are suspended is the nucleoplasm.
What does it mean if a micrograph is false colored?
What does it mean if a micrograph is “false-colored?” It means that the object has color created by the computer since electron microscopes really see in black and white. They usually range in sizes between 5-50 micrometers, they are surrounded by a cell membrane, and usually can’t be seen without a microscope.