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Which structure regulates passage of molecules into and out of the bacterial cell quizlet?

Which structure regulates passage of molecules into and out of the bacterial cell quizlet?

Mitochondria have an inner membrane system called thylakoid membranes. All cells have a cell wall that regulates the passage of molecules into and out of the cell. Mitochondria are thought to be derived from aerobic bacteria that became part of the eukaryotic cell through endosymbiosis.

What controls what goes in and out of a bacterial cell?

Cytoplasmic Membrane – A layer of phospholipids and proteins, called the cytoplasmic membrane, encloses the interior of the bacterium, regulating the flow of materials in and out of the cell.

What is the structure used for movement of the bacterial cell?

Most motile bacteria move by means of flagella. The structures and pattern of movement of prokaryotic and eukaryotic flagella are different. Eukaryotes have one to many flagella, which move in a characteristic whiplike manner. The flagella closely resemble the cilium in structure.

What is the name of the structure that allows bacteria to stick to a surface?

Fimbriae are thin filamentous appendages that extend from the cell, often in the tens or hundreds. They are composed of pilin proteins and are used by the cell to attach to surfaces. They can be particularly important for pathogenic bacteria, which use them to attach to host tissues.

What statement is false concerning movement of molecules across the cell membrane?

Which statement is FALSE concerning movement of molecules across the cell membrane? Lipid molecules do not pass through easily. If a cell lacks ATP, which of the following processes would cease to operate immediately? both facilitated diffusion AND active transport.

Which cellular structure is responsible for packaging materials within the cell group of answer choices?

The Golgi apparatus
The Golgi apparatus is a series of flattened sacs that sort and package cellular materials. The Golgi apparatus has a cis face on the ER side and a trans face opposite of the ER. The trans face secretes the materials into vesicles, which then fuse with the cell membrane for release from the cell.

What are the three types of bacterial cell wall?

Types of cell wall

  • Gram positive cell wall. Cell wall composition of gram positive bacteria. Peptidoglycan. Lipid. Teichoic acid.
  • Gram negative cell wall. Cell wall composition of gram negative bacteria. Peptidoglycan. Outermembrane: Lipid. Protein. Lipopolysaccharide (LPS)

What are the parts of a bacterial cell and their functions?

Table 2. Summary of characteristics of typical bacterial cell structures

Structure Flagella Function(s) Swimming movement
Ribosomes Sites of translation (protein synthesis)
Inclusions Often reserves of nutrients; additional specialized functions
Chromosome Genetic material of cell
Plasmid Extrachromosomal genetic material

Which of the following is not found in a bacterial cell?

Cell wall is the correct answer. This is because cell walls are found in plant cell and some fungi and algae . It is not present in bacteria,animals, protozoa,etc.

What two structures can allow bacteria to adhere to surfaces?

Surface Structures The number and arrangement of flagella on the cell are diagnostically useful. Pili (Fimbriae): Pili are slender, hairlike, proteinaceous appendages on the surface of many (particularly Gram-negative) bacteria. They are important in adhesion to host surfaces.

What are two foods that bacteria help make?

Bacteria are used to make food, such as cheese and yogurt, and they can also help us break down harmful substances in the environment.

What kind of transport system does a bacterial cell have?

Operation of bacterial transport systems. Bacterial transport systems are operated by transport proteins (sometimes called carriers, porters or permeases) in the plasma membrane. Facilitated diffusion is a carrier-mediated system that does not require energy and does not concentrate solutes against a gradient.

What is the function of a bacterium’s capsule?

_____ are surface appendages that allow a bacterium to stick to a surface. What is the function of a bacterium’s capsule? Nice work! You just studied 55 terms! Now up your study game with Learn mode.

What is the function of the plasma membrane?

The _____ is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell. plasma membrane The structure that regulates the passage of material into and out of this bacterial cell is indicated by the letter _____.

How does the function of a cell depend on its structure?

An organism’s ability to perform essential functions such as metabolism, reproduction, and maintaining homeostasis depends on the proper functioning of structures at the cellular level. Although these structures are present in all animal cells, their number or activity level may vary depending on the cell type.