Answer:
has a particular shape that matches the substrate
Explanation:
Enzymes are proteinous biological catalyst i.e. they speed up the rate of biochemical reactions in living systems. Like every other catalyst, enzymes reduce the activation energy of the reactions they are involved in without getting used up in the process.
Enzymes operate by binding to a substrate molecule i.e. the reactant and form a bond with them in order to synthesize a product. However, enzymes are substrate-specific i.e. they are very particular about the substrate they bind to. This property is due to the shape of the enzyme which matches a particular substrate.
Enzymes, like every other protein molecules, are made up of amino acid subunits, which are responsible for the shape that determines the specificity of the protein.
Answer:
2. Subcutaneous emphysema
Explanation:
Subcutaneous emphysema is a Medical condition where a bulging or swelling occurs beneath the skin due to passage of air or gas in the subcutaneous layer of the skin. Thoracentesis which is mostly done to remove fluid could cause air passage into the subcutaineous tissue resulting in swelling which progresses as more air enters the tissue
Answer:
Littoral Communities
Littoral areas of ponds and lakes are typically better oxygenated, structurally more complex, and afford more abundant and diverse food resources than do profundal sediments. All these factors lead to a high diversity of insects and very complex trophic interactions (see Section IV.
Explanation:
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