0
While pathogenic bacteria are notorious for such diseases as cholera, tuberculosis, and gonorrhea, such disease-causing species are a comparatively tiny fraction of the bacteria as a whole.
Bacteria are so widespread that it is possible only to make the most general statements about their life history and ecology. They may be found on the tops of mountains, the bottom of the deepest oceans, in the guts of animals, and even in the frozen rocks and ice of Antarctica. One feature that has enabled them to spread so far, and last so long is their ability to go dormant for an extended period.
Bacteria have a wide range of envronmental and nutritive requirements.Most bacteria may be placed into one of three groups based on their response to gaseous oxygen. Aerobic bacteria thrive in the presence of oxygen and require it for their continued growth and existence. Other bacteria are anaerobic, and cannot tolerate gaseous oxygen, such as those bacteria which live in deep underwater sediments, or those which cause bacterial food poisoning. The third group are the facultative anaerobes, which prefer growing in the presence of oxygen, but can continue to grow without it.Bacteria may also be classified both by the mode by which they obtain their energy. Classified by the source of their energy, bacteria fall into two categories: heterotrophs and autotrophs. Heterotrophs derive energy from breaking down complex organic compounds that they must take in from the environment -- this includes saprobic bacteria found in decaying material, as well as those that rely on fermentation or respiration.
The other group, the autotrophs, fix carbon dioxide to make their own food source; this may be fueled by light energy (photoautotrophic), or by oxidation of nitrogen, sulfur, or other elements (chemoautotrophic). While chemoautotrophs are uncommon, photoautotrophs are common and quite diverse. They include the cyanobacteria, green sulfur bacteria, purple sulfur bacteria, and purple nonsulfur bacteria. The sulfur bacteria are particularly interesting, since they use hydrogen sulfide as hydrogen donor, instead of water like most other photosynthetic organisms, including cyanobacteri
What else can I help you with?
Is a plant cell a elodea or epithelial?
A plant cell is a type of cell found in plants, including the elodea species. Epithelial cells, on the other hand, are found in animal tissues and line various body cavities and surfaces.
Are chloroplasts present in elodea oblong cells?
Yes, chloroplasts are present in Elodea oblonga cells. Elodea is a type of aquatic plant that contains chloroplasts in its cells to facilitate photosynthesis, the process by which plants convert sunlight into energy. Chloroplasts are responsible for producing energy-rich molecules that help the plant grow and survive.
Can Elodea cells live on their own?
No, Elodea cells cannot live on their own because they are a part of a larger organism. Elodea is a type of aquatic plant that consists of multiple cells working together to support the plant's growth and function. Individual Elodea cells cannot survive independently.
What type of macromolecule helps a cell break down food?
Enzymes are the type of macromolecule that helps a cell break down food. Enzymes act as catalysts to speed up chemical reactions that break down large molecules into smaller ones that can be used by the cell for energy or growth.
Do elodea have cilia?
Elodea, a type of aquatic plant, does not have cilia. Cilia are small, hair-like structures typically found on the surfaces of certain protists and animal cells, used for movement or sensing the environment. Instead, Elodea has elongated, submerged leaves that facilitate photosynthesis and gas exchange in water. Its movement is primarily due to water currents rather than ciliary action.
Why do onion and elodea cells have a more definite shape than the human cheek cells?
Elodea and onion cells have more consistent shapes than human epithelial cells because they have cell walls. The human epithelial cells do not have defined cell walls.
Is a plant cell a elodea or epithelial?
A plant cell is a type of cell found in plants, including the elodea species. Epithelial cells, on the other hand, are found in animal tissues and line various body cavities and surfaces.
What kingdom does the Elodea Cell belong to?
I'm not sure about the domain but the kingdom is viridiplantae, or plants. Hope that helps
What type of cell division is exhibited by the cell in the onion root tip?
Mitosis.
Does the elodea have a central vacuole?
Yes, elodea (a type of aquatic plant) does have a central vacuole. The central vacuole in elodea helps maintain turgor pressure, store nutrients and waste products, and regulate cell growth.
What is the microscopic structures make up organisms such as Elodea?
The 3 characteristics can be seen in elodea microscopically are cell wall, large central vacuole and chloroplasts. When looking under a microscope at elodea you can see the basic structure of plant cells.
Are chloroplasts present in elodea oblong cells?
Yes, chloroplasts are present in Elodea oblonga cells. Elodea is a type of aquatic plant that contains chloroplasts in its cells to facilitate photosynthesis, the process by which plants convert sunlight into energy. Chloroplasts are responsible for producing energy-rich molecules that help the plant grow and survive.
When a onion cell is stained with iodine which organelles are you not able to see under a compound light microscope?
Under a compound light microscope, you would not be able to see specific organelles like the lysosomes, peroxisomes, endoplasmic reticulum, and Golgi apparatus in an onion cell stained with iodine. These organelles are typically smaller and/or transparent, making them difficult to visualize with this type of microscope.
What type of tonicity will draw water from red blood cells or Elodea cells?
A hypotonic solution will draw water from red blood cells or Elodea cells. In a hypotonic solution, the concentration of solutes outside the cell is lower than inside the cell, leading to water entering the cell by osmosis to equalize the concentration. This causes the cells to swell and potentially burst.
What type of organism is an elodea?
Elodea is an aquatic plant commonly known as waterweed. It belongs to the genus Elodea within the family Hydrocharitaceae. Elodea is often used in biology classrooms for studying plant cells and photosynthesis.
Is a chive a type of green onion?
Yes, a chive is a type of green onion.
Why is an onion cell a plant cell?
Onion cells have a cell wall made of cellulose, while animal cells don't have a cell wall. Also, onion cells would have chloroplasts and chlorophyll so they can do photosynthesis. And animal cells have organelles called either centrosomes or centrioles, and plants don't.
