Name an enzyme that acts on each molecule.
c. RNA

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Understand that enzymes are biological catalysts that speed up chemical reactions by acting on specific substrates. In this case, the substrate is RNA.

Recall that enzymes are named based on the type of reaction they catalyze or the substrate they act upon. For RNA, the enzyme typically involved is one that breaks down or modifies RNA molecules.

Identify that enzymes ending in '-ase' often indicate their function. For RNA, the enzyme responsible for breaking it down is called ribonuclease (commonly abbreviated as RNase).

Note that ribonucleases catalyze the hydrolysis of the phosphodiester bonds in RNA, breaking it into smaller components such as nucleotides.

Conclude that ribonuclease (RNase) is the enzyme that acts on RNA, facilitating its degradation or processing in biological systems.

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RNA

Ribonucleic acid (RNA) is a crucial molecule in the biology of cells, playing a central role in coding, decoding, regulation, and expression of genes. Unlike DNA, RNA is typically single-stranded and contains ribose sugar and the nitrogenous base uracil instead of thymine. RNA is involved in various cellular processes, including protein synthesis and gene regulation.

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2:43

Types of RNA Concept 1

Enzymes

Enzymes are biological catalysts that accelerate chemical reactions in living organisms. They are typically proteins that lower the activation energy required for reactions, thus increasing the rate at which they occur. Each enzyme is specific to a particular substrate, meaning it acts on a specific molecule or type of molecule, facilitating various biochemical processes.

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2:14

Intro to Enzymes Concept 1

RNA Polymerase

RNA polymerase is the enzyme responsible for synthesizing RNA from a DNA template during the process of transcription. It binds to the promoter region of a gene and unwinds the DNA strands, allowing it to read the sequence and construct a complementary RNA strand. This enzyme is essential for gene expression and the production of messenger RNA (mRNA), which carries genetic information to ribosomes for protein synthesis.

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2:43

Types of RNA Concept 1

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Domanda del libro di testo

What classes of enzymes would you expect to catalyze the following reactions?

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Domanda del libro di testo

What kind of reaction does each of these enzymes catalyze?

c. A reductase