Dna

Regulatory region in front of gene

FIGURE 3.29 Transport Proteins

Transport proteins are often found in cell membranes where they are responsible for the entry of nutrients or the export of waste products.

FIGURE 3.29 Transport Proteins

Transport proteins are often found in cell membranes where they are responsible for the entry of nutrients or the export of waste products.

4. Transport proteins are found mostly in biological membranes, as shown in Figure 3.29, where they carry material from one side to the other. Nutrients, such as sugars, must be transported into cells of all organisms, whereas waste products are deported. Multi-cellular organisms also have transport proteins to carry materials around the body. An example is hemoglobin, which carries oxygen in blood.

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