What kind of biomolecule are enzymes typically composed of? what effect do enzymes have on their substrates and the overall reaction? give at least 4 real life examples!

Enzymes are typically composed of amino acids.

Enzymes specifically binds to their substrate, and accelerate the biological or in-vitro reactions.

Four real-life examples of enzymes are: Lipase, Maltase, DNA ploymerase and Alcohol dehydrogenase.

Explanation:

All enzymes are proteins. They are composed of amino acids as monomer units linked by polypeptide bonds.

The substrate is a molecule which has specific enzyme binding sites for the highly specific enzyme called as active sites. With this binding, the  enzyme-substrate complex is formed, undergoes the chemical reaction and new product is formed. Enzymes accelerate the biological reactions by lowering the reaction's activation energy.

Four-real life examples of enzymes are:

Lipase enzyme: catalyses the hydrolysis of fats and triglycerides in the small intestine. Lipase enzyme is secreted by pancreas.

Maltase enzyme: catalyses the breakdown of maltose sugar. It is secreted by salivary glands and our mouths.

DNA Polymerase Enzyme: It catalyses the DNA replication in the cells. It is secreted by the nucleus

Alcohol dehydrogenase: It catalyses many reactions in the body as the reduction of NAD to NADH. It is secreted by the liver.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.