Which best defferentiates between chemical digestion mechanical digestion

Biology

1 answer:

Nimfa-mama [501]3 years ago

5 0

Mechanical digestion is the breaking down of food into smaller pieces physically. Mechanical digestion begins in the mouth as the food is chewed.

but in the case of chemical digestion, it breaks the food into simpler nutrients that can be used by the cells. Chemical digestion begins in the mouth when food mixes with saliva.

for more refer to this:

Hope this helped

and ur welcm

You might be interested in

How many red pandas are left alive in worle?

rewona [7]

I think bout hundreds

7 0

3 years ago

Read 2 more answers

Scientists seeking to determine which molecule is responsible for the transmission of characteristics from one generation to the

worty [1.4K]

A) DNA fulfils all three conditions:
(1) copy itself precisely - in the process of replication, DNA copies itself and two molecules of DNA are formed. This process is very precise thanks to the great number of proteins involved in these process that prevents error occurring and proteins that can fix the error if it occurs.
(2) be stable but able to be changed - DNA is very stable molecule otherwise, it cannot be a genetic material. However, its chains can separate in a short length so the translational machinery can attach to it and the process of transcription can occur. Also, in crossing over, during meiosis, the exchange of genetic material occurs and chromosomes change a bit.
(3) be complex enough to determine the organism’s phenotype - it contains a number of genes responsible for different traits. All of this results in the organism’s phenotype.

B) DNA copies itself. Meselson and Stahl conducted the experiments on DNA replication in which they used E. coli bacteria as a model system. After they labelled all bacteria's DNA with heavy 15N by using medium with heavy 15N, they switched bacteria to medium with light 14N. After several generations, all bacteria's DNA was labelled with light 14N. This experiment evidenced that the self-replication of DNA is semi-conservative process.

5 0

3 years ago

Steven's preference is that most of his carbohydrate intake comes from sources low on the glycemic index scale. What types of fo

Strike441 [17]

Answer:

Low glycemic index food such as Bran cereals, Apple, Orange, Kidney beans, Black beans, Lentils, Wheat tortilla, Skim milk, Cashews,Peanuts, Carrots

Explanation:

5 0

3 years ago

Read 2 more answers

Steroids differ structurally from triglycerides and phospholipids, although they are all classified as lipids. What characterist

Yakvenalex [24]

Answer:

Lipids are hydrocarbon molecules that make up the structure of living beings. Few examples are fats, oils and waxes. Steroids are also a class of lipids but they are not structurally related to other lipids but do share some common properties with them. They are insoluble in water and are hydrophobic( water-repelling).

Explanation:

Lipids are insoluble in water as they are non-polar but soluble in non polar solvents (chloroform). Fat soluble vitamins like A,D,E,K and steroids have a different structure composed of fused four rings.

The most common example of steroid is cholesterol. Cholesterol acts as a precursor for many hormones and other signalling molecules.

7 0

3 years ago

Read 2 more answers

What is a disadvantage of asexual reproduction?

Alik [6]

There is genetic diversity among offspring

explanation
since the offsprings are genetically identical to the parent they are more susceptible to the same diseases and nutrient deficiencies as the parent

7 0

3 years ago