Nucleus
The Nucleus is an example of a command centre found inside a eukaryotic cell; it’s usually the most prominent organelle, yet it occupies only 10% of the total volume of the cell. If this cell did not have a Nucleus, it would be defined as a prokaryote cell, however if the Nucleus was damaged and not repaired, the cell would simply die.
The cell nucleus is enclosed within a double membrane (contains an Inner and Outer Nuclear Membrane) called the Nuclear Envelope, which separates the Chromosomes from the Cytoplasm and allows material to move in and out of the cell. The Nuclear Envelope contains small channels called Pores to allow small molecules to pass through the membrane. An example of a small molecule that passes through these …show more content…
The nucleus within a human cell contains 23 pairs of Chromosomes, where the genes on them control the development of characteristics that the organism will inherit. Within the Nucleus, there is a large structure called a Nucleolus which mainly makes Ribonucleic Acid (RNA) and Ribosomes. When these Ribosomes are made, they are sent outside of the nucleus to make proteins. If the Nucleolus can’t produce Ribosomes, the cell won’t form together or produce proteins. The RNA is necessary in making proteins; it’s used to arrange Amino Acids into “special proteins” so that they can be used within the cell. This process is known as Protein Synthesis or Translation. The RNA can also be used to carry messages containing DNA …show more content…
They are the most important Plastids found in the plant cell, and their behaviour is heavily influenced by environmental factors like light intensity and colour. The Chloroplast has a double membrane (inner and outer membrane systems). The inner membrane forms a border from the Stroma and it allows materials to enter and exit the Chloroplast. The outer membrane is “permeable” to ions, which can diffuse easily, and its not permeable to proteins. Chloroplasts contain a green pigments called Chlorophyll which absorbs sunlight and uses the sun’s energy to convert carbon dioxide and water into glucose. A by-product of this reaction is Oxygen because it is freed from the water during this chemical reaction. Similarly to Mitochondria, Chloroplasts contain their own DNA, inherited by their ancestors which were engulfed by an early eukaryotic
The Nucleus is an example of a command centre found inside a eukaryotic cell; it’s usually the most prominent organelle, yet it occupies only 10% of the total volume of the cell. If this cell did not have a Nucleus, it would be defined as a prokaryote cell, however if the Nucleus was damaged and not repaired, the cell would simply die.
The cell nucleus is enclosed within a double membrane (contains an Inner and Outer Nuclear Membrane) called the Nuclear Envelope, which separates the Chromosomes from the Cytoplasm and allows material to move in and out of the cell. The Nuclear Envelope contains small channels called Pores to allow small molecules to pass through the membrane. An example of a small molecule that passes through these …show more content…
The nucleus within a human cell contains 23 pairs of Chromosomes, where the genes on them control the development of characteristics that the organism will inherit. Within the Nucleus, there is a large structure called a Nucleolus which mainly makes Ribonucleic Acid (RNA) and Ribosomes. When these Ribosomes are made, they are sent outside of the nucleus to make proteins. If the Nucleolus can’t produce Ribosomes, the cell won’t form together or produce proteins. The RNA is necessary in making proteins; it’s used to arrange Amino Acids into “special proteins” so that they can be used within the cell. This process is known as Protein Synthesis or Translation. The RNA can also be used to carry messages containing DNA …show more content…
They are the most important Plastids found in the plant cell, and their behaviour is heavily influenced by environmental factors like light intensity and colour. The Chloroplast has a double membrane (inner and outer membrane systems). The inner membrane forms a border from the Stroma and it allows materials to enter and exit the Chloroplast. The outer membrane is “permeable” to ions, which can diffuse easily, and its not permeable to proteins. Chloroplasts contain a green pigments called Chlorophyll which absorbs sunlight and uses the sun’s energy to convert carbon dioxide and water into glucose. A by-product of this reaction is Oxygen because it is freed from the water during this chemical reaction. Similarly to Mitochondria, Chloroplasts contain their own DNA, inherited by their ancestors which were engulfed by an early eukaryotic