Which cell structures can be seen in the electron micrograph?
The cell wall, nucleus, vacuoles, mitochondria, endoplasmic reticulum, Golgi apparatus, and ribosomes are easily visible in this transmission electron micrograph. (Courtesy of Brian Gunning.)
What are the sites of reactions in eukaryotic cells?
More emphasis here will be placed on eukaryotic cells where the mitochondria are the site of most of the reactions.
Why are some features visible in an electron micrograph may not be present in the living cell?
Living cells cannot be observed using an electron microscope because samples are placed in a vacuum. the scanning electron microscope (SEM) has a large depth of field so can be used to examine the surface structure of specimens.
How do you tell if a cell is prokaryotic or eukaryotic?
Comparing prokaryotes and eukaryotes The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information.
What is the site of respiration in a eukaryotic cell?
mitochondria
If oxygen is available, aerobic respiration will go forward. In eukaryotic cells, the pyruvate molecules produced at the end of glycolysis are transported into mitochondria, which are the sites of cellular respiration.
What is the primary site of protein production in a eukaryotic cell?
What is the primary site of protein production in a eukaryotic cell? ribosomes (Ribosomes are the sites of protein synthesis.)
What can we see with an electron microscope but not a light microscope?
Mitochondria are visible with the light microscope but can’t be seen in detail. Ribosomes are only visible with the electron microscope.
What is the electron micrograph of the nucleus?
The Electron Micrograph of Nucleus. 1. The Electron Micrograph of Mitochondria: It is an electron micrograph of cell’s largest and most important organelle – the mitochondria and is characterized by the following features (Fig. 7 & 8):
What is the electron micrograph of mitochondria?
1. The Electron Micrograph of Mitochondria: It is an electron micrograph of cell’s largest and most important organelle – the mitochondria and is characterized by the following features (Fig. 7 & 8): (1) The name mitochondria was given by Benda (1898) and their ma n function was brought to light by Kingsbury (1912).
What is the electron micrograph of endoplasmic reticulum?
The Electron Micrograph of Endoplasmic Reticulum: It is an electron micrograph of endoplasmic reticulum and is characterized by following features (Fig. 11 & 12): (1) It was discovered and named by Porter (1948).
What is the electron micrograph of plastids?
The Electron Micrograph of Plastids: This is an electron-micrograph of plastid or chloroplast, which is an integral component of all green plant leaves and is characterized by following features (Fig. 15 & 16): (1) They may be spheroidal, ovoid, stellate or collar shaped and differ in size and number in different cells.