-
No, it is a eukaryotic unicellular algae and is multinucleated (prokaryotes do not have a nucleus) and belongs to the phylum Chlorophyta Tubular mycophyta of the family Cystaceae.
Algae seem to have only the phylum Cyanobacteria as prokaryotes
-
Under the microscope, we see three types of bacteria: fat and round, called cocci; The body is thin and long, it is a bacillus; The body shape is crooked, called spirospira. Regardless of their shape, they are only single cells, with an internal structure similar to that of a normal plant cell.
It has a tough and elastic "shell" on the outside called the cell wall, which bacteria rely on to protect their bodies. Tightly clinging to the cell wall, there is a flexible membrane called the cell membrane, which is the "gateway" for food and waste to enter and exit the cell. The cell membrane is filled with a viscous colloidal solution, which is the cytoplasm that contains various particles and storage materials.
Some bacteria have a nucleus, but it is much simpler than the nucleus of large organisms, so people call it prokaryotic cells.
-
Sponges are eukaryotes, because sponges have a nucleus and a typical ribbon-like chloroplast, and the production site of oxygen for photosynthesis in biology is chloroplasts, which is an experimental material made of sponge.
The discovery of photosynthesis in the section of "Molecules and Cells", a compulsory course in high school biology, has this classic experiment.
-
No, aquatic phytoplankton such as sponges, cyanobacteria and other aquatic phytoplankton are the simplest monocytic organisms and the simplest eukaryotes.
-
Microorganisms include bacteria, fungi, etc., where bacteria are prokaryotic and fungi are eukaryotic.
-
Prokaryotic cells are made up of nucleomimetic structures of genetic factor DNAProkaryotes generally include: bacteria, cyanobacteria, chlamydia, mycoplasma, etc. Whereas, eukaryotic cells are: all animal cells, plant cells, fungi, etc.
-
It is relative to eukaryotic cells, which have no formed nucleus and the genetic material is DNA or RNASuch as bacteria, cyanobacteria, chlamydia, mycoplasma, etc.
-
Prokaryotic cells refer to cells that do not have a distinct nucleus.
Categorized as upstairs.
-
Yes, prokaryotic cells do not have a nucleus bounded by a nuclear membrane. Both DNA and RNA are synthesized in the cytoplasm.
-
Prokaryotic cells do not have chromosomes.
Prokaryotic cells are the cells that make up prokaryotes. The main characteristic of this type of cell is that there is no nucleus bounded by a nuclear membrane, and there is no nucleolus, only a nucleoid. Evolutionary status is low.
Organelles have only ribosomes and have a cell wall that is different in composition from eukaryotic cells. Cells are smaller, have no shaped nucleus, no chromosomes, and DNA does not bind to proteins.
Nucleomimetic organisms are found in prokaryotes and are nuclei that are not coated by a nuclear membrane and have no chromosomes, only a circular DNA molecule located in an irregularly shaped region with indistinct borders. Contains genetic material. The nucleic acids inside are circular DNA in the form of a double-strand helix with multiple identical replicates at the same time.
-
Prokaryotic cells do not have chromosomes.
Prokaryotic cells have similar genetic material but should not be called chromosomes.
-
Chromatin is formed by the high degree of binding of DNA and proteins, and chromosomes are highly helical chromatin, and prokaryotic prokaryotes have only DNA and no chromosomes and chromatin.
-
There is no forming nucleus, so there are no chromosomes.
Ancient karyotic cells are the cells that make up prokaryotes and generally do not have chromosomes.
Nystagmus is an involuntary, rhythmic, pendulum-like or beating-like oscillation of the eyeball. The main causes of nystagmus are early eye motor dysplasia, such as congenital cataracts, which cause nystagmus, as well as family genetic history, Down syndrome, brain damage, or lesions, such as inflammation of the brain, tumors, degeneration, trauma, and vascular diseases, which may cause nystagmus. In addition, nystagmus can be caused by eye disease or eye dysfunction, degenerative changes of the optic nerve, severe astigmatism, high myopia, physical diseases, multi-site sclerosis, stroke, and severe ear inflammation. >>>More
Barbworms are single-celled organisms, and Barbs stingers are also known as rice tree worms and cattle stinging insects. Rice fighting insects, also commonly known as birds do not step on stinging insects, birds do not step on stinging insects, have a history of thousands of years of folk application. Because of the peculiar effect, the ancient people used "a bucket of rice" to be equal to the current catty to exchange for a worm and got the name. >>>More
Proptosis is common in a variety of eye diseases, such as eye disease and high myopia. Orbital diseases mainly include thyroid-related eye diseases, orbital inflammatory pseudotumors, orbital tumor diseases, etc. Therefore, when exophthalmos occurs, it is advisable to first check the specific cause of exophthalmos in the hospital, and the ** protocol is different for different diseases. >>>More
Nursing Pay attention to proper rest, drink plenty of boiled water, and give liquid or slippery easy-to-digest food during fever. Pay attention to the cleanliness of the mouth, eyes and nose, and maintain indoor air circulation and proper temperature and humidity. There is inflammation plus anti-inflammatory drugs.