Nat 5 Biology Unit 1 Cell Biology Verified Solutio
Nat 5 Biology Unit 1 Cell Biology Verified Solutio
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Nat 5 Biology Unit 1 Cell Biology Verified Solution
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Nat 5 Biology Unit 1 Cell Biology Verified Solutio
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Nat 5 Biology Unit 1 Cell Biology Verified Solutio
Nat 5 Biology Unit 1 Cell Biology Verified Solutions
Cell Wall ️️Maintains cell shape, made of cellulose in plant cells, bacteria and fungal cells have a
different structure.
Cell membrane ️️Is selectively permeable. It is made of proteins and phospholipids. It controls the
entry an...
Nat 5 Biology Unit 1 Cell Biology Verified Solutions
Cell Wall ✔️✔️Maintains cell shape, made of cellulose in plant cells, bacteria and fungal cells have a
different structure.
Cell membrane ✔️✔️Is selectively permeable. It is made of proteins and phospholipids. It controls the
entry and exit of substances in and out of the cell.
Nucleus ✔️✔️Controls all of cell activities. It contains chromosomes which carry the genetic
information.
Cytoplasm ✔️✔️The site of chemical reactions. Contains enzymes.
Mitochondria ✔️✔️Membrane bound organelle found in all cells except bacteria. They are the site of
aerobic respiration and produce ATP. Cells with a high energy demand have more of these eg. muscle
cell and sperm
Chloroplast ✔️✔️Membrane bound organelle found in plant cells. Contain chlorophyll. The site of
photosynthesis.
Ribosome ✔️✔️Small almost spherical structure found in the cytoplasm of all cells. Site of protein
synthesis.
Concentration gradient ✔️✔️Different concentration of substances exciting between cells and their
environment.
Passive transport ✔️✔️The movement of substances along the concentration gradient, from an area
of high concentration to an area of low concentration without using energy eg. Diffusion
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