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4 years ago

Enzymes ______ chemical reactions. A: speed up B: Slow down C: Don't change

Biology

2 answers:

xxMikexx [17]4 years ago

8 0

Enzymes speed up the chemicaal reaction .

ZanzabumX [31]4 years ago

7 0

The answer is A. speed up.

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Monosaccharides can be grouped as aldehydes and kefone groups,what is their difference and similarities and list four examples f

Lady bird [3.3K]

Answer:

Aldehyde has C=O bonded to atleast one H atom while Ketone has C=O bonded to two carbon atoms

Aldehyde - galactose, glucose, glyceraldehyde, fructose

Ketone - Trioses, Tetroses, Pentoses, Hexoses

Explanation:

Similarity

Both the aldehyde and ketone have C=O group

Difference

In aldehye the C=O group require atleast one hydrogen atom or the functional group in aldehyde is -CHO

while in ketone the function group is C=O only that is bonded to two carbon atoms.

Example

Aldehyde - galactose, glucose, glyceraldehyde, fructose

Ketone - Trioses, Tetroses, Pentoses, Hexoses

6 0

3 years ago

For a science experiment. John gradually added a sedium hydroxide (NaOH) solution to warm vegetable oil in a glass test tube. He

Marrrta [24]

The sodium hydroxide solution and vegetable oil underwent a chemical change.

<h3><u>Explanation:</u></h3>

The reaction between a base and a fat or fatty acid is called as saponification reaction. Here the base dissociates into the cation and hydroxyl ion. The hydrogen from the fatty acid of the oil reacts with the hydroxyl ion to form water which is basically the neutralization reaction. This cation now reacts with the rest of the fatty acid to form a bipolar molecule which is the soap. During the reaction, the solution becomes cloudy but with time, it again goes back to solution. The cloudyness appears because oil isn't soluble in water based solutions and the base is actually made solution in water.

Here the sodium hydroxide reacts with oil to form water and the soap molecule which is a chemical change.

6 0

4 years ago

Explain how antibiotics are able to target the bacteria cells but not the healthy cells within your body.

seropon [69]

Antibiotics are designed to target only the cells that are harmful to the human body

6 0

3 years ago

Read 2 more answers

The thymus is the only lymphoid organ that does not ________.

mr_godi [17]

It does not produce hormones

4 0

3 years ago

4. Root cells of plants take in some minerals from the surrounding soil by spending

shusha [124]

Answer:

i know its 3

Explanation:

yes buddy

6 0

3 years ago