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
Tema [17]
4 years ago
5

During the process of mammalian fertilization, a sperm cell encounters glycoproteins in the gelatinous extracellular matrix that

surrounds the ovum. Experimental removal of sugars from these glycoproteins prevents fertilization. Which carbohydrate function is demonstrated by these results?
Biology
1 answer:
LiRa [457]4 years ago
3 0

Answer:

Carbohydrates, particularly glycoproteins act as ligands for cell surface receptors.

Explanation:

Glycoproteins

  • Glyproteins are conjugate molecules comprising of carbohydrates conjugated with proteins.
  • Glycoproteins play a vital role in cell-cell recognition, pathogen recognition and and cell adhesion.
  • Glycoproteins on the surface of pathogens act as prominent antigens for the immune system.

Glycoproteins in Fertilization:

Several glycoproteins are attached to the surface of the zona pellucida, the envelope of the oocyte. In humans, these have been termed as ZP1-4.

Glycoprotein-sperm interaction is one of the most crucial steps in fertilization. This receptor-ligand interaction ensures the entry of the sperm into the zona pellucida, the extracellular coat, covered in glycoproteins that surrounds the oocyte or egg.

Carbohydrate binding proteins present on the surface of the sperm recognize the glycoproteins on the zona pellucida (ZP). This enables them to adhere to the surface of the ZP and also to gain access to the oocyte.

You might be interested in
Where do plants obtain carbon dioxide
Vilka [71]

Answer:

The roots

Explanation:

The roots is where carbon dioxide

and H2O is obtained. Hopefully this helped

4 0
3 years ago
8) What is the manipulated variable in this experiment?
Murrr4er [49]

Answer:

As the variables are not given, let us help with general explanation on manipulated variable.

Explanation:

A manipulated variable is an independent variable. In a scientific experiment, an independent variable can be described as a variable which can change naturally or which is changed by the researcher to check its effect on the dependent variable. The dependent variable is the variable which is under study and being tested.

For example, to check the difference in photosynthesis rate by light, the amount of light will be the independent variable and the rate of photosynthesis will be the dependent variable.

8 0
3 years ago
40 POINTS PLEZ HELP :)
Angelina_Jolie [31]

2. To focus a microscope using the high power lens you must first in low power center the specimen and make sure it is in focus. Then switch to high power and adjust using the fine adjustment or the smaller knob.

3. It prevents dust from settling on the scope and in the lenses.

4 0
3 years ago
What do convection currents mean?
Dimas [21]

Answer:

Convection currents transfer heat from one place to another by mass motion of a fluid such as water, air or molten rock.

Explanation:

7 0
2 years ago
What are All living things are made of at least one cell.
n200080 [17]

Answer:

an organism

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which term describes body structures in different organisms that have different outward appearances but develop from the same em
    7·2 answers
  • Seed X has 20 chromosomes. How many chromosomes will daughter cells have after meiosis? I'll upvote you
    11·1 answer
  • Functional proteins are enzymes that are made up of ___ and have an asymmetrical carbon.
    9·1 answer
  • Carbohydrates are to monosaccharides as proteins are to amino acids.
    13·1 answer
  • If earth tides decreased what would be the most likely explanation?
    10·2 answers
  • A client is receiving chemotherapy to treat breast cancer. Which assessment finding indicates a chemotherapy-induced complicatio
    6·1 answer
  • The consumption of _____ is especially important for women of childbearing age to prevent neural tube defects in infants.
    10·1 answer
  • Duchenne muscular dystrophy is an X-linked recessive disorder.
    13·2 answers
  • Which structure connects muscles to bones?<br><br> bone marrow<br> cartilage<br> ligament<br> tendon
    8·2 answers
  • During what phase is the chromosomes number reduced from 2n to n?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!