Each group of three nucleotides encodes one amino acid. Since there are 64 combinations of 4 nucleotides taken three at a time there are 20 amino acids.
Answer:
Facilitated transport proteins
Explanation:
Large molecules such as glucose or carbohydrates use proteins to help break down cell membranes. Some membrane proteins with chains of carbohydrates are attached to help cells become acquainted with certain molecules.
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Answer and explanation:
One of the unordered forms of the dying cell is necrosis.
Necrosis is caused by lesions that impede internal balance control: water and some ions, especially sodium and calcium, normally pumped out, flow freely into the swelling and rupturing cell. The necrosis rupture releases into the surrounding tissue cellular content, rich in proteases, enzymes that "cut" other proteins, and other toxic substances. In addition to direct toxicity to neighboring cells, the stroke generates substances that attract immune cells, causing an intense inflammatory reaction: some types of white blood cells, especially neutrophils and macrophages, converge to necrosis tissue and ingest dead cells. Inflammation, typical of necrosis, is important for limiting infections and removing cell debris, but white blood cell activity and secretions can also damage neighboring, sometimes devastating, normal tissues.
I have seen several people get this wrong a lot. Cilia, which is more associated with cell movement is not so with Paramecium. To capture food, a Paramecium uses its cilia to capture food and transport it to the "mouth"
The answer is: photosynthesis.
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