23.04.2023

What controls many cell functions

. 4

Faq

Biology
Step-by-step answer
P Answered by PhD


The answer is D.

Modification of protein is done by the Golgi apparatus of the cell and not the nucleus. The nucleus simply has the blue print of proteins and releases these blue prints to mRNA which transports the prints out to the ribosomes where they are read and used to synthesize or make the protein.

Once a protein has been made, it is packed into a vesicle which is a "shipping envelope" for a cell. The vesicle moves to the Golgi apparatus which receives it and enzymes within the apparatus modify the vesicle contents, that is the protein, to its final form. The protein is then repacked into a new vesicle which then migrates from the Golgi apparatus to the cell membrane and releases the protein to the outside of the cell.

Biology
Step-by-step answer
P Answered by PhD


The answer is D.

Modification of protein is done by the Golgi apparatus of the cell and not the nucleus. The nucleus simply has the blue print of proteins and releases these blue prints to mRNA which transports the prints out to the ribosomes where they are read and used to synthesize or make the protein.

Once a protein has been made, it is packed into a vesicle which is a "shipping envelope" for a cell. The vesicle moves to the Golgi apparatus which receives it and enzymes within the apparatus modify the vesicle contents, that is the protein, to its final form. The protein is then repacked into a new vesicle which then migrates from the Golgi apparatus to the cell membrane and releases the protein to the outside of the cell.

StudenGPT
Step-by-step answer
P Answered by Studen AI
The correct answer is A. Structure 2 is the cell membrane, which controls what enters and leaves the cell.

The cell membrane is a vital structure found in all cells and it surrounds the cell, acting as a protective barrier. It is made up of a double layer of lipids (fats) with embedded proteins.

The cell membrane plays a crucial role in sustaining life by controlling the movement of substances in and out of the cell. Here's why:

1. Selective Permeability: The cell membrane is selectively permeable, meaning it allows certain substances to pass while preventing others from entering or leaving the cell. This ensures that the cell maintains a stable internal environment.

2. Nutrient Intake: The cell membrane regulates the intake of essential nutrients, such as glucose and amino acids, which are required for cellular functions and energy production. These substances can pass through the membrane with the help of specific protein channels or transporters.

3. Waste Removal: Similarly, the cell membrane facilitates the removal of waste products produced by cellular metabolism. It allows the passage of waste materials, such as carbon dioxide and other waste ions, out of the cell.

4. Maintaining Cell Shape: The cell membrane helps in maintaining the shape and structure of the cell. It provides mechanical support, preventing the cell from bursting or collapsing. The lipid bilayer of the cell membrane gives it both flexibility and strength.

5. Cell Recognition and Communication: The cell membrane contains receptor molecules that allow cells to recognize one another, facilitating communication and coordination between different cells and tissues in the body.

Overall, the cell membrane is essential for the survival of the cell as it controls the flow of molecules, nutrients, and waste materials into and out of the cell. Its selective permeability ensures that the cell maintains homeostasis and carries out its necessary functions.
Biology
Step-by-step answer
P Answered by Master

15. The correct answer is option C, that is, made up of cells. All the living things are made up of cells.  

16. The correct answer is option D, as mitochondria are considered as the powerhouse of the cell.  

17. The correct answer is option B, the prime function of the cell wall is to provide the cell strength, strength, and composition.  

18. The correct answer is option C, the cell membrane works as a gatekeeper of the cell, it monitors the movement of components in and out of the cells and organelles. In this manner, it is selectively permeable to organic molecules and ions.  

19. The correct answer is option C, the Kingdom Plantae comprises of species like trees, bushes, herbs, grasses, green algae, and others. They are characterized by the presence of cell wall and green chloroplasts.  

20. The correct answer is option B, cytoplasm refers to the jelly-like fluid, which fills a cell. It comprises majorly of water and salt. It is present inside the cell membrane of all the kinds of cells and comprises all the cell components and organelles.  

Biology
Step-by-step answer
P Answered by Specialist

15. The correct answer is option C, that is, made up of cells. All the living things are made up of cells.  

16. The correct answer is option D, as mitochondria are considered as the powerhouse of the cell.  

17. The correct answer is option B, the prime function of the cell wall is to provide the cell strength, strength, and composition.  

18. The correct answer is option C, the cell membrane works as a gatekeeper of the cell, it monitors the movement of components in and out of the cells and organelles. In this manner, it is selectively permeable to organic molecules and ions.  

19. The correct answer is option C, the Kingdom Plantae comprises of species like trees, bushes, herbs, grasses, green algae, and others. They are characterized by the presence of cell wall and green chloroplasts.  

20. The correct answer is option B, cytoplasm refers to the jelly-like fluid, which fills a cell. It comprises majorly of water and salt. It is present inside the cell membrane of all the kinds of cells and comprises all the cell components and organelles.  

Biology
Step-by-step answer
P Answered by Master

Known as the cell's “command center,” the nucleus is a large organelle that stores the cell's DNA (deoxyribonucleic acid). The nucleus controls all of the cell's activities, such as growth and metabolism, using the DNA's genetic information.

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