A virus is nonliving structure that attacks cells and multiplies by injecting RNA or DNA telling the cell to make multiple copies of the virus.
Virus
virus
Diseases Caused by Viruses
AIDS
Chicken Pox
Colds
Colorado Tick Fever
Encephalitis
Fever blisters
Genital warts
Genital herpes
Influenza
Leukemia
Liver Cancer
Measles
Mumps
Oral Herpes
Polio
Rabies
Shingles
Small Pox
Warts
Bacteria
Bacteria are small single celled organisms that have a cell wall and do not have a well, defined nucleus.
Bacteria
Archea
Archea are small single celled organisms that have a cell wall and do not have a well, defined nucleus. Archea very similar to bacteria but have a different ribosome structure and tend to be extremophiles. Extemophiles can live in extreme conditions such as
Archaea
high and low temperatures.
The basic structural and functional units of all organisms. They may exist and function alone (such as individual blood cells) or in groups (such as tissues and organs)
Animal Cell Diagram
Cells
The basic structural and functional units of all organisms. They may exist and function alone (such as individual blood cells) or in groups (such as tissueshigh and low temperatures.
The cell is one of the most basic units of life. There are millions of different types of cells. There are cells that are organisms onto themselves, such as microscopic amoeba and bacteria cells. And there are cells that only function when part of a larger organism, such as the cells that make up your body. The cell is the smallest unit of life in our bodies. In the body, there are brain cells, skin cells, liver cells, stomach cells, and the list goes on. All of these cells have unique functions and features. And all have some recognizable similarities. All cells have a 'skin', called the plasma membrane, protecting it from the outside environment. The cell membrane regulates the movement of water, nutrients and wastes into and out of the cell. Inside of the cell membrane are the working parts of the cell. At the center of the cell is the cell nucleus. The cell nucleus contains the cell's DNA, the genetic code that coordinates protein synthesis. In addition to the nucleus, there are many organelles inside of the cell - small structures that help carry out the day-to-day operations of the cell. One important cellular organelle is the ribosome. Ribosomes participate in protein synthesis. The transcription phase of protein synthesis takes places in the cell nucleus. After this step is complete, the leaves the nucleus and travels to the cell's ribosomes, where translation occurs. Another important cellular organelle is the mitochondrion. Mitochondria (many mitochondrion) are often referred to as the power plants of the cell because many of the reactions that produce energy take place in mitochondria. Also important in the life of a cell are the lysosomes. Lysosomes are organelles that contain enzymes that aid in the digestion of nutrient molecules and other materials. Below is a labelled diagram of a cell to help you identify some of these structures.
Organelles
A differentiated structure within a cell, such as a mitochondrion, vacuole, or chloroplast, that performs a specific function.
Function of organelles
Organelles are small structures within cells that perform dedicated functions. As the name implies, you can think of organelles as small organs. There are a dozen different types of organelles commonly found in eukariotic cells. In this course we will focus our attentions on only a handful of organelles. We will examine these organelles with an eye to their role at a molecular level in the cell, and leave descriptive cell biology for another course. For example, our interest in the mitochondrion lies in its ability to generate energy in a form that is useful to the cell, and to that end we are interested in how the membrain structure allows the energy generation to proceed, but we will not spend much time naming mitochondrial structures or discussing their distribution in different cell types.
Golgi Complex
A network of stacked membranous vesicles present in most living cells that functions in the formation of secretions within the cell. Also called Golgi body, Golgi complex
Vesicle
I like lions because they are fast and they eat other animals
Jonathan S
jonrsVirus
A virus is nonliving structure that attacks cells and multiplies by injecting RNA or DNA telling the cell to make multiple copies of the virus.Virus
Diseases Caused by Viruses
Bacteria
Bacteria are small single celled organisms that have a cell wall and do not have a well, defined nucleus.Archea
Archea are small single celled organisms that have a cell wall and do not have a well, defined nucleus. Archea very similar to bacteria but have a different ribosome structure and tend to be extremophiles. Extemophiles can live in extreme conditions such asThe basic structural and functional units of all organisms. They may exist and function alone (such as individual blood cells) or in groups (such as tissues and organs)
Cells
The basic structural and functional units of all organisms. They may exist and function alone (such as individual blood cells) or in groups (such as tissueshigh and low temperatures.
The cell is one of the most basic units of life. There are millions of different types of cells. There are cells that are organisms onto themselves, such as microscopic amoeba and bacteria cells. And there are cells that only function when part of a larger organism, such as the cells that make up your body. The cell is the smallest unit of life in our bodies. In the body, there are brain cells, skin cells, liver cells, stomach cells, and the list goes on. All of these cells have unique functions and features. And all have some recognizable similarities. All cells have a 'skin', called the plasma membrane, protecting it from the outside environment. The cell membrane regulates the movement of water, nutrients and wastes into and out of the cell. Inside of the cell membrane are the working parts of the cell. At the center of the cell is the cell nucleus. The cell nucleus contains the cell's DNA, the genetic code that coordinates protein synthesis. In addition to the nucleus, there are many organelles inside of the cell - small structures that help carry out the day-to-day operations of the cell. One important cellular organelle is the ribosome. Ribosomes participate in protein synthesis. The transcription phase of protein synthesis takes places in the cell nucleus. After this step is complete, the leaves the nucleus and travels to the cell's ribosomes, where translation occurs. Another important cellular organelle is the mitochondrion. Mitochondria (many mitochondrion) are often referred to as the power plants of the cell because many of the reactions that produce energy take place in mitochondria. Also important in the life of a cell are the lysosomes. Lysosomes are organelles that contain enzymes that aid in the digestion of nutrient molecules and other materials. Below is a labelled diagram of a cell to help you identify some of these structures.
Organelles
A differentiated structure within a cell, such as a mitochondrion, vacuole, or chloroplast, that performs a specific function.Function of organelles
Organelles are small structures within cells that perform dedicated functions. As the name implies, you can think of organelles as small organs. There are a dozen different types of organelles commonly found in eukariotic cells. In this course we will focus our attentions on only a handful of organelles. We will examine these organelles with an eye to their role at a molecular level in the cell, and leave descriptive cell biology for another course. For example, our interest in the mitochondrion lies in its ability to generate energy in a form that is useful to the cell, and to that end we are interested in how the membrain structure allows the energy generation to proceed, but we will not spend much time naming mitochondrial structures or discussing their distribution in different cell types.
Golgi Complex
A network of stacked membranous vesicles present in most living cells that functions in the formation of secretions within the cell. Also called Golgi body, Golgi complex
Vesicle
I like lions because they are fast and they eat other animals