The correct order of the seven structures of plant cells from the outside to the inside

The structural order of plant cells is simple: wall-membrane-matrix (cytoskeleton and organelles)-nucleus.

Based on your question:

Cell wall--- cell membrane--- cytoplasm--- vacuoles Mitochondria, chloroplasts (scattered in the cytoplasm in no order) - nucleus (the nucleus may not be in the geometric center of the cell, but the nucleus can be regarded as the chemical center of the cell, the biological center, and the order is no problem).

The matrix is a general term for a whole, in which the cytoskeleton and organelles are not in a fixed order, and there seems to be no such thing as seven structures.

Of course, you can subdivide it, but this statement is unscientific

1.Cell wall: different from the structure of animal cells, it mainly plays a protective role and increases mechanical resistance;

2.Cell membrane: This is a necessary structure for all cell forms, and the appearance of a cell membrane marks the appearance of a cell.

The current model of the cell membrane is the lipid raft model, which is composed of phospholipid molecules and proteins that perform a variety of functions.

It mainly isolates the cell from the environment and controls the exchange of information and matter.

3.Cell matrix: also known as cytoplasm, cytoplasm. Refers to the fluid outside the inner core of the membrane, which contains proteins, enzymes, and free nutrients, and provides a place, environment, and substance for biochemical reactions in the cell;

4.Vacuole: a unique structure of plant cells, containing fluid, mainly to balance the osmotic pressure of cells and store water; But in terms of position, it is one or two in the cytoplasm, and it does not matter the inner and outer order;

5.Plastids: according to pigment and function, they are divided into chloroplasts, chromosomes, and white bodies. The most common is chloroplasts, and their main role is photosynthesis. Scattered within the cytoplasm.

6.Other organelles: mitochondria, endoplasmic reticulum, Golgi apparatus, ribosomes, microsomes, lysosomes and even centrioles like that.

7.Nucleus: The nucleus is further divided into multiple layers.

a. Nuclear membrane. b. Nucleolus.

c. Chromatin (the term is a bit general, let's simply say it).

d. Nuclear fluid.

The cell wall, cell membrane, cytoplasm (vacuoles, mitochondria, chloroplasts all belong to) nucleus.

From the outside to the inside: cell wall, cell membrane, cytoplasm, nucleus. Vacuoles, chloroplasts, mitochondria are all organelles that are randomly distributed within the cytoplasm and there is no order to speak of.

Plant cells do not contain mitochondria, only chloroplasts! The order is 1, cell wall 2, cell membrane 3, cytoplasm : chloroplast, vacuole 4, nucleus.

Cell wall >> cell membrane >> cytoplasm >> nucleus vacuole mitochondria chloroplast.

The last four subcellular organelles belong to a juxtaposition relationship and are independently dispersed in the cytoplasm respectively.

The seven cells are egg cells, helper cells (2), polar nuclei (two nuclei), and antipod cells (3).

Cell wall. Cell membrane.

Cytoplasmic matrix.

Organelles. Nuclear membrane.

Nucleoplasm. Nucleolus.

Select A. Trainers.

The chromosomes are arranged in the cell**] - [the nucleus is divided into two] - [in the cell ** shape with leaky potatoes into new cells, the hand mask and the cell wall].

Late stage] - [Late stage].

1) Plant cells are composed of four parts: cell wall, cell membrane, cytoplasm, and nucleus.

1) The cell wall is located in the outermost part of the cell, which is divided into two or three layers, namely the intercellular layer and the primary wall, and some also have secondary walls, the main components are cellulose, hemicellulose and pectin, which have the functions of protection, material transportation, and information recognition.

2) The cell membrane is composed of phospholipid bilayers and proteins, which are selective and semi-permeable, and have the functions of protection, regulation, and recognition.

3) The cytoplasm is composed of the cytoplasm, organelles, and cell structure, and the basic physiological and biochemical functions of the cell are completed by the cytoplasm, which has various functions such as assimilation, respiration, storage, synthesis, and decomposition.

4) The nucleus is composed of nuclear envelope, chromatin, nucleolus, and nuclear matrix, which is the site of cell genetic material and controls the genetic traits of plants.

2) Among them, the cell wall, large vacuole, and plastid are the unique structures of plant cells.

Plant cell is the basic unit of structure and function of plant life activities, which is composed of two parts: protoplast and cell wall. Protoplasts are a general term for all substances in the cell wall, mainly composed of cytoplasm and nucleus, and there are several different organelles in the cytoplasm or nucleus, in addition to cell fluid and post-inclusions.

The cytoplasm of a typical plant cell can be divided into membranes (plasma membrane and vacuolar membrane), hyalurin, and organelles (endoplasmic reticulum, plastids, mitochondria, Golgi apparatus, ribosomes, etc.). Hyaluronin is an amorphous soluble part of the cytoplasm in which organelles and various post-inclusions are suspended. The plasma membrane is the realm of the cytoplasm and is close to the cell wall, which has many small pores, so the cytoplasm of adjacent cells is interconnected.

The plasma membrane is selective for the permeability of substances. The vacuolar membrane is located at the site where the cytoplasm and the cell fluid are in contact, and the morphological structure of the plasma membrane is basically similar. The endoplasmic reticulum is a group of perforated membranes scattered within hyalurin, which is a concentrated distribution field of ribosomes, and it is thought that it also plays a role in cell wall formation.

Plastids are unique organelles in eukaryotic cells, which are tablet-shaped, disc-shaped or spherical, with two membranes on the surface, and their functions are closely related to energy metabolism, nutrient storage and plant reproduction. Plastids are usually developed directly or indirectly from preplasts, which are generally found in embryos or meristems, usually in a double-layer membrane containing a relatively homogeneous matrix. Plastids can be broadly divided into three main categories, namely achromats, chloroplasts, and chromosomes.

Answer B analysis: This question examines the basic structure of plant cells, first of all, to determine what kind of structure plant cells have

Answer: The structure of plant cells includes: cell wall, cell membrane, nucleus, cytoplasm, chloroplast, mitochondria, vacuole Among them, the cell wall is located in the outermost part of the cell and plays a supporting and protective roleFurther inside is the cell membrane, which controls the entry and exit of substances;Inside is the cytoplasm, which can flow, accelerating the exchange of substances between the cell and the external environment;Within the cytoplasm there is a nucleus, vacuoles, and chloroplasts and mitochondrial branches

Therefore, the structure of plant cells is the focus of the investigation, which can be grasped in combination with the schematic diagram of the structure of plant cells

The structure of plant cells includes: cell wall, cell membrane, nucleus, cytoplasm, chloroplast, mitochondria, vacuole Among them, the cell wall is located in the outermost part of the cell and plays a supporting and protective roleFurther inside is the cell membrane, which controls the entry and exit of substances;Inside is the cytoplasm, which can flow, accelerating the exchange of substances between the cell and the external environment;Inside the cytoplasm there are nuclei, vacuoles, and chloroplasts and mitochondria

Therefore, b