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
Sergeeva-Olga [200]
3 years ago
8

4. What is an enzyme, and what is its role in a reaction?

Biology
2 answers:
Luden [163]3 years ago
8 0

Answer:

an enzyme is a protein which is used to break down food

Explanation:

umka21 [38]3 years ago
8 0

Answer: An enzyme breaks down food

Explanation:

You might be interested in
As per the rules of binomial nomenclature, which species name is written correctly?
lianna [129]
As per the rules of bionomial nomenclature, the species name that is written correctly is C. Pelecinus polytyrator (or B, because you wrote two answers which are completely the same).
You capitalize the genus name, but write the specific epithet in small letters. 
4 0
3 years ago
Read 2 more answers
How parrotfish affect the carrying capacity of coral reefs
kicyunya [14]

Answer:

Explanation:

Parrotfish spend 90% of their day cleaning the reef of algae. This cleaning (eating) helps corals grow and thrive, and healthy reefs support more fish in the sea. ... They snack on the hard parts of coral which becomes a white sandy material in their stomachs that they leave behind on the reef.

6 0
3 years ago
Sonja wants to find the difference in length between the world's longest
Gnom [1K]

Answer:

The answer would be C) range

Explanation:

8 0
3 years ago
Read 2 more answers
What is the part of an experiment that can be changed called?
r-ruslan [8.4K]
Manipulate change is the part of the experiment that has changed
3 0
3 years ago
The absorptive effectiveness of the small intestine is enhanced by increasing the surface area of the mucosal lining. Which of t
bekas [8.4K]

Answer:

plicae circulares and intestinal villi

Explanation:

The inner wall of the intestine is full of wrinkles, called villi. An enlargement of them under the microscope reveals that they are formed by cells whose surface has innumerable small "wrinkled" structures. The small intestine is the largest viscera of the body (about six meters). Intestinal villi and microvilli increase the area of ​​contact with the intestine as well as the speed of absorption of food. Blood capillaries and lymph are in these villi to absorb nutrients.

The intestinal villi, have the function of increasing the absorption of nutrients after digestion. They are the folds of the intestines. The surface of the villi has an area of ​​12 cm² and the microvilli 240 cm².

Villi and microvilli increase the area of ​​intestinal absorption by approximately 30 times and 600 times, respectively, providing exceptionally efficient absorption of nutrients in the lumen.

The entire small intestine has circular folds of mucosa, also called Kerckring valves and circular plicae. Most extend transversely around the small intestine cylinder for about half or two-thirds of its circumference, but some form complete circles, and some have a spiraling direction; The latter usually extend a little more than once around the bowel, but occasionally two or three times. Circular folds slow the passage of partially digested food along the intestines and provide an increased surface for absorption.

6 0
3 years ago
Other questions:
  • A person fell off a ladder and broke one third of the bones of the appendicular skeleton how many bones would be broken
    11·2 answers
  • Why doesn’t each child look exactly alike?
    12·2 answers
  • What is a cacti environmental pressures?
    6·1 answer
  • How does the moon affect the Earth?
    11·1 answer
  • Please help me in this 7th grade science review
    14·1 answer
  • Now that you have identified the sequence of the daughter strand based on the sequence on the parent strand, can you come up wit
    15·1 answer
  • During what succession do new species move into an area and colonize it
    8·1 answer
  • During telophase, each chromatid does what ?
    9·1 answer
  • What makes an allele dominant recessive or codominant
    6·1 answer
  • Which of the following would occur without gravity?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!