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What are the 3 things that regulate the cell cycle?
Cyclins and regulatory proteins. Regulatory proteins include internal regulators and external regulators
What are specialized proteins that both regulate the cell cycle and cause it to occur?
Proteins called internal regulators and external regulators control the cell cycle. Internal regulatory proteins allow the cell cycle to proceed only when certain events have occurred in the cell itself. External regulatory proteins direct cells to speed up or slow down the cell cycle.
What are membrane proteins involved in?
The plasma membrane separates the interior of cells from the outside environment. The function of this membrane is to protect the cell from its surroundings. The membrane proteins provide many functions that is vital for survival of the organism. These proteins may act as a membrane receptor and relay signals between the cells internal and external environments. Also transporting proteins by moving molecules and ions across the membrane.
Can ribosomes be present in eukaryotes?
Eukaryotes do have ribosomes. In fact, they have 2 types of ribosomes: those which synthesise internal proteins and those which synthesise external proteins.Internal proteins (to be used within the cell) are made at ribosomes which float freely in the cytoplasm of the cell. External proteins (to be used outside of the cell, in other cells or in the cell membrane) are made at ribosomes which are bound to the outer membrane of the rough endoplasmic reticulum (rER).Eukaryotes do have ribosomes. In fact, they have 2 types of ribosomes: those which synthesise internal proteins and those which synthesise external proteins.Internal proteins (to be used within the cell) are made at ribosomes which float freely in the cytoplasm of the cell. External proteins (to be used outside of the cell, in other cells or in the cell membrane) are made at ribosomes which are bound to the outer membrane of the rough endoplasmic reticulum (rER).
What are the steps in exocytosis?
Step1 vesicles realease ther contents ito thecell's external environment Stept2 the vescicles than move to the cell membrane and fuse it Step3 delivers proteins
What are the external proteins used for attachment called?
the answer is fimbriae -shannon
Which component of the HPV vaccine stimulates the production of antibodies?
The external viral proteins of the HPV vaccine.
What are the 3 things that regulate the cell cycle?
Cyclins and regulatory proteins. Regulatory proteins include internal regulators and external regulators
What different roles and functions do membrane proteins serve?
Membrane proteins relay signals between the cell's internal and external environments. They transport proteins and move molecules and ions across the membrane. They have many activities such as oxidoreductase, hydrolase or transferase.
What are specialized proteins that both regulate the cell cycle and cause it to occur?
Proteins called internal regulators and external regulators control the cell cycle. Internal regulatory proteins allow the cell cycle to proceed only when certain events have occurred in the cell itself. External regulatory proteins direct cells to speed up or slow down the cell cycle.
What are external regulators?
External regulators are proteins that respond to events outside the cell. These proteins direct cells to speed up or slow down the cell cycle, like traffic lights. For example, growth factors are one of the most important external regulators, and they stimulate the growth and division of cells. These differ from internal regulators in the fact that they respond to events inside the cell. Internal regulators allow the cell to proceed only when certain processes have happened inside the cell. Hope this helps! : )
What molecules are processed by the rough endoplasmic?
The rough endoplasmic reticulum acts as an assembly line where workers (ribosomes) make proteins. This area is where proteins are assembled for internal and external use.
What are membrane proteins involved in?
The plasma membrane separates the interior of cells from the outside environment. The function of this membrane is to protect the cell from its surroundings. The membrane proteins provide many functions that is vital for survival of the organism. These proteins may act as a membrane receptor and relay signals between the cells internal and external environments. Also transporting proteins by moving molecules and ions across the membrane.
Can ribosomes be present in eukaryotes?
Eukaryotes do have ribosomes. In fact, they have 2 types of ribosomes: those which synthesise internal proteins and those which synthesise external proteins.Internal proteins (to be used within the cell) are made at ribosomes which float freely in the cytoplasm of the cell. External proteins (to be used outside of the cell, in other cells or in the cell membrane) are made at ribosomes which are bound to the outer membrane of the rough endoplasmic reticulum (rER).Eukaryotes do have ribosomes. In fact, they have 2 types of ribosomes: those which synthesise internal proteins and those which synthesise external proteins.Internal proteins (to be used within the cell) are made at ribosomes which float freely in the cytoplasm of the cell. External proteins (to be used outside of the cell, in other cells or in the cell membrane) are made at ribosomes which are bound to the outer membrane of the rough endoplasmic reticulum (rER).
What are the steps in exocytosis?
Step1 vesicles realease ther contents ito thecell's external environment Stept2 the vescicles than move to the cell membrane and fuse it Step3 delivers proteins
What you see of a organism due to genotype?
Due to a genotype, which basically mean codes that can produce proteins, a phenotype is observed. Genes contain information for protein synthesis. The proteins produced in turn produce an externally observable character or trait. This external appearance produced due to the effect of a genotype is phenotype.
Describe the characteristics that distinguish proteins from the other major classes of macromolecules and explain the biologically important functions of this group?
Proteins are made of amino acids. Carbohydrates, DNA and fat are not made of amino acids. Protein is the building block of life. Most of the structures (e.g. feathers, hair, the external skeleton of insects, the sting of a bee and a jelly fish, etc.) found in nature are made of proteins. Even single celled organisms must rely on proteins. The cell membrane is made of proteins and lipids, and the flagellum of single cell organisms is also made of protein
