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
love history [14]
3 years ago
5

Channels within the structure of the cell membrane are composed of A) carbohydrates. B) disaccharides. C) phospholipids. D) prot

eins.
Biology
2 answers:
kompoz [17]3 years ago
6 0

its proteins

Proteins. The channels within the cell membrane are composed of  

three dimensional proteins that allow the passage of specific molecules or charged atoms.

enot [183]3 years ago
4 0
<span>I believe the answer is: D. proteins

The main functions of these proteins is to allow specific substance to pass through the membrane of the cells which needed for the energy formation for cells'functions.It created through the combination of more than 20 amino acids with different functions.</span><span />
You might be interested in
Question 9 of 10<br> Which process is a form of mechanical weathering?
Firlakuza [10]

Explanation:

abrasion, pressure release, thermal expansion and contraction and crystal growth.

6 0
3 years ago
1. Which blood types are dominant?
marishachu [46]

Answer: 1). A and B are both dominant (because A and B are codominant to one another)

2). E. All of the above

Explanation:

1). From the image above, A and B are both dominant because they are equally expressed when they occur in a pair (when they occur as blood type AB), also they are dominant because each of them expressed itself when it occurs in a pair with a recessive allele (IAi and IBi).

2). The children of a father with A blood and a mother with B blood will have all the four blood types: A, B, AB, and O. If each parent has a recessive allele, that is if each parent is heterozygous for his/her blood type (IAi for the father and IBi for the mother), the cross between them will produce all the four possible blood types.

See the attached punnet square for more information.

7 0
3 years ago
NEED BIO HELP ASAP 30 POINTS !!!!!!!!!!!!!!!!!!!!!!
alexandr402 [8]

1. Cell starts into mitosis phase of the cell cycle.

2. Helicase begins to break the hydrogen bonds between the nitrogen bases. (The double helix has to be unwound in order to expose the nucleotides)

3. DNA polymerase attach the free-floating nucleotides to the exposed nitrogen bases. (this allows a new DNA strand to be made on the existing one)

4. Free floating nucleotides pair up with exposed nitrogen bases (this is what really builds the new strand, based around the template strand)

5. Two new molecules of DNA are created

Statements:

Adenine

Cytosine (Car in the Garage, Apple in a Tree is a good trick to know how they pair)

DNA

Replication

Double helix

4 0
3 years ago
Please tell me an animal that was extinct but is now alive today
Pepsi [2]
For an animal to be extinct none more of that specific species must exist on Earth. This makes it impossible for that species to come back to life.
6 0
2 years ago
Describe the features of the fluid mosaic model of the cell membrane.
alexgriva [62]
This model suggests that the cell membrane is a dynamic structure, because the proteins and phospholipids move laterally within the lipid bilayer ( so it is more of a fluid than solid)





(Mark me the brainliest if this has helped)
3 0
2 years ago
Other questions:
  • In cell A, what structure is labelled X?
    6·2 answers
  • Winds always blow from ________ pressure toward _______ pressure, and they curve because of the _______ effect.
    7·2 answers
  • 1. What are the two major steps in protein synthesis (in correct order)?
    9·1 answer
  • In order for any animal to grow, repair its body,
    11·2 answers
  • The term trial refers to _____.
    14·2 answers
  • What event marked the end of the Cretaceous Period?
    7·2 answers
  • C. Read the hypotheses below, and identify the
    11·1 answer
  • WILL GIVE BRAINLIST PLEASE HELPPPP
    11·1 answer
  • A blonde woman uses dye to change her hair color to red;
    13·2 answers
  • In the condensation part of the water cycle, what is the change of state that water goes through?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!