The structures that both mesophyll cells and muscle cells possess while cyanobacteria cells do not p

Cyanobacteria are prokaryotes and do not possess Golgi apparatus and mitochondria! It is the chlorophyll and phycocyanin in the body of cyanobacteria that provide energy for the survival of cyanobacteria! Whereas, mesophyll cells and muscle cells are eukaryotic organisms with all the organelles

Chromosomes are structures that all cellular organisms have, and as for endoplasmic reticulum, only eukaryotes have it!

Cyanobacteria are cyanobacteria and are prokaryotes, whereas muscle cells are eukaryotic. What is the difference between the two types of cells? That is, prokaryotes do not have normal organelles such as Golgi apparatus, mitochondria, chloroplasts, etc., and the organelles it has only ribosomes, so where are the ribosomes?

It's on the chromosome-endoplasmic reticulum.

Because cyanobacteria are prokaryotes, not eukaryotes, it does not have the characteristics of eukaryotes, but they all have chromosomes so they all have endoplasmic reticulum.

Most cyanobacteria have colloidal coatings on the outside of their cell walls, hence the name sliminophytes. There is no nucleus, but the cell** contains nuclear material, which is usually granular or reticulated, and chromatin and pigment are evenly distributed in the cytoplasm. The nuclear substance does not have a nuclear membrane and nucleolus, but has the function of a nucleus, so it is called a prokaryotic (or quasi-nucleus).

There is also a circular DNA in cyanobacteria, the plasmid, which plays the role of a carrier in genetic engineering.

The protorescule in cyanobacteria cells does not differentiate into cytoplasm and nucleus, but differentiates into two parts: periplasm and **plasma. The periplasm is located in the inner surface of the cell wall, and the photosynthetic pigments of cyanobacteria such as chlorophyll a, phycocyanin and phycoerythrin are present in the photosynthetic sheet of the periplasm. **Plasm is located in the cell**, does not have a nuclear membrane and nucleolus but has chromatin, so it is also called a hole primitive nucleus or prokaryotic.

Cyanobacteria do not possess organelles such as chloroplasts, mitochondria, Golgi apparatus, centrosomes, endoplasmic reticulum, and vacuoles, and the only organelles are ribosomes. Contains chlorophyll a, no chlorophyll b, contains several lutein and carotene, and also contains phycobilin (is a general name for phycoerythrin, phycocyanin and allocyanin).

What do Pycoccus courcia and mesophyll cells have in common?

The answer is that cyanobacteria and mesophyllum cells have functional commonalities or several skins that can be photosynthesized.

The chlamydomonas you are talking about are unicellular, spherical or ovate, with two flagella of equal length at the tip and can swim. There are two telescopic vesicles at the base of the flagella; On the other side of the cell near the anterior, there is a red eyespot. Vegetative reproduction produces zoospores; Sexual reproduction is homogamous, heterogamous, and ovarian reproduction.

It is easy to form a group life.

The mesophyll cells you are talking about, I don't know what kind of plant mesophyll cells are, different plant mesophyll cells have one thing in common: the differentiation of leaves means that they must be higher plants, and they must not be single cells. The leaves are usually green, and there are also chloroplasts in the mesophyll cells, which can carry out photosynthesis and so on.

a. Cyanobacteria belong to prokaryotes, and prokaryotic cells all have ribosomes, a is wrong;

b. Human skeletal muscle cells do not have chloroplasts, B is wrong;

c. Human skeletal muscle cells do not have chloroplasts, and cyanobacterial cells also contain RNA, C is wrong;

d. Golgi apparatus and mitochondria are ubiquitous organelles in eukaryotic cells, but they are not present in prokaryotic cells, d is correct

Therefore, d

A. Bacteria and cyanobacteria are both prokaryotes, and they do not have endoplasmic reticulum in their cells, and a. is wrong;

b. Bacterial cells and cyanobacteria cells belong to prokaryotic cells, while animal muscle cells and mesophyll cells belong to eukaryotic cells, and the organelles common to prokaryotic cells and eukaryotic cells are ribosomes, B is correct;

c. Bacteria and cyanobacteria are both prokaryotes, and they do not have a formed nucleus in their cells, c is wrong;

d. Bacteria and cyanobacteria are both prokaryotes, and they do not have mitochondria in their cells

Answer] D Answer Analysis] Test Question Analysis: Cyanobacteria cells belong to prokaryotic cells, with only one organelle ribosome, and also have cell membrane, cytoplasm, DNA, RNA, etc., and item D is correct; Chloroplasts are found in mesophyll cells, and human skeletal muscle cells do not have chloroplasts.

Test Points: This question examines the structure of cells and is intended to test the candidate's ability to understand the main points of what they have learned.