Leona is making lemon pudding from "scratch." her ingredients include fat-free milk, corn starch, lemon juice, egg yolks, salt, sugar, and butter. when she added some of the ingredients together, little clumps formed in the mixture before she could heat it. what happened to those ingredients? a. the acid in the lemon juice denatured the milk proteins. b. the cholesterol in the raw egg yolks reacted with the butter. c. the salt activated the sugar after being mixed with the egg yolks.

The acid in the lemon juice denatured the milk proteins.

Explanation:

The important biomolecule of the living organism is protein. Proteins are made of the repeating units of the alpha amino acids that are attached together through the peptide bond.

The proteins get denatured if they are subjected to the change in the temperature conditions or the additions of the chemicals. The addition of the lemon juice that acts as the acid coagulates the protein present in the milk and results in the clump formation.

Thus, the correct answer is option (a).

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.