1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aleksley [76]
3 years ago
5

What type of molecule speeds up chemical reactions in living things?

Biology
1 answer:
iren [92.7K]3 years ago
4 0

The best answer is  B - Proteins.

Proteins make up enzymes, or to put it another way enzymes are made up of protein. It is enzymes that speed up the chemical reactions. Enzymes are organic catalysts, substances that speed up a (biochemical) reaction but do not take part in the reaction and remain unchanged at the end of the reaction.

In man, there are many enzymes. The majority of these are found in the digestive system where they greatly aid the process of food breakdown from complex molecules to simple molecules. Examples include salivary amylase found in saliva,  which begins the gradual breaking down of starch into glucose right from the moment food is placed in the mouth and mixed with saliva. Pepsin in the stomach breaks down protein.

You might be interested in
Which of the following will NOT cause mass extinction?
aliya0001 [1]
Geological change will not cause a mass extinction, because it happens on a too big scale - on the scale of millions of years. During such long time, it is more likely that other causes will influence the survival of extinction of species, such as climate change or environmental disasters, and even if there is a small influence, it would not be significant next to other causes.
3 0
3 years ago
Mr.etterly, age 66, has just been admitted to the nursing unit reporting severe chest pain, a frequent productive cough, and sho
gogolik [260]
Acidosis, the pH of a human should be 7.4 and never lower than 7.35
5 0
3 years ago
Fill in the blank with the missing word. Be sure to use correct spelling
sergij07 [2.7K]

Answer:

I think it's

1)genotype 2)phenotype

3 0
2 years ago
Which is true about organisms that survive longer?
ELEN [110]

Answer

Yes because a organ will survive longer than a heart

Explanation:

because i am smart

5 0
2 years ago
The model below represents a DNA molecule.
Aleksandr [31]

Answer:

Nitrogen

Explanation:

The nitrogenous bases of the two separate polynucleotide strands are bound together, according to base pairing rules (A with T and C with G), with hydrogen bonds to make double-stranded DNA.

3 0
2 years ago
Other questions:
  • Which disease is caused by a hidden virus? flu cold sore common cold cystic fibrosis
    13·1 answer
  • Type the correct answer. <br> A female with an X-linked dominant disease mates with a normal male
    6·1 answer
  • Why is the first breath of a newborn the most difficult ?
    5·1 answer
  • About 90% of the alcohol a person drinks will be oxidized by the __________, which takes time.
    5·1 answer
  • The ____________ contains mitotic cells. the ____________ contains layers of compacted, highly keratinized epithelial cells. the
    5·2 answers
  • Is nuclear power a type of fossil fuel
    11·2 answers
  • Which characteristics describe the human genetic code
    11·1 answer
  • In a cross between individuals of a species of tropical fish, all of the male offspring have long tail fins, and none of the fem
    11·1 answer
  • CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION THANK YOU !!!​
    8·1 answer
  • _____ is on the shoulders of the police and investigation team.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!