Respuesta :

Answer:

The answer to your question is:

Explanation:

21.- Enzyme is a substance that regulates the rate of a biological reaction.

Without enzymes, biological reactions could not proceed.

22.- When a protein is boiled, it is denatured that means that is loses its biological prperties.

23.- Most of the weak forces that keep together proteins are disrupted when temperature is increased.

24.- Low or high pH denatured proteins, because proteins lose their 3-D structure.

25.-

Carbohydrates           Have a sweet flavor, are soluble in water, are a source

                                   of energy, are found in vegetables, plants and fruits.

Lipids                          They are oily structures, are a source of energy,

                                   protect and isolate the body from the surroundings.

Proteins                      They help in the correct function of the organism,

                                   These molecules have in their structure nitrogen.

Nucleic acids              They are located in the nucleus, their monomers are  

                                   nucleotides, participated in inheritance.

DNA vs RNA              DNA has thyamine and deoxyribose while RNA  has

                                   uracile and ribose. DNA is a double stranded    molecule and  RNA is a single standed molecule.

1.-  Lipids

2.-  Aminoacid

3.-  Protein

4.- Nucleic acid