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
Verdich [7]
4 years ago
8

What could prevent sperm from reaching and fertillizing an egg?

Biology
1 answer:
Aleks04 [339]4 years ago
6 0
Numerous barriers can prevent sperm from reaching and fertilizing the egg, this can be that the Sperm may be defected, or lack the required number of mitochondria needed to help move the sperm. Also, if sperm had already fertilized the egg, there is a change that takes place to the membrane surrounding the egg preventing further sperm from fertilizing.
You might be interested in
The polypeptide encoded by the glucose carrier gene has a signal sequence. As a result, the ribosome and the polypeptide that is
olganol [36]

Answer:

The correct words for the three blanks are as follows:

1. Endoplasmic reticulum. 2. Golgi apparatus. 3. Facilitated diffusion.

Explanation:

During the translation stage of protein synthesis, signal sequences are either attached or excluded from a synthesized protein in order to indicate the right location it should be sent to. Proteins that possess signal sequences are usually sent to the endoplasmic reticulum, where they will be folded into their right shapes. From the endoplasmic reticulum the proteins are then transported into Golgi apparatus via membrane vesicles. In the Golgi apparatus, proteins undergo their final modifications before they are transported to their final destinations. The final destination of glucose carrier proteins is the plasma membrane, where they help glucose molecules to enter the cell via facilitated diffusion.  

6 0
4 years ago
(c) why is phosphorylation effective for regulating the activity of proteins? select all that apply.
hodyreva [135]

ATP is the phosphoryl group donor

<span>The free energy of the phosphorylation reaction is large.</span>

Phosphorylation is known to be an effective way of regulating protein and in eukaryotic cells, about 30% pf the protein are phosphorylated. Thus, the enzyme responsible for the phosphorylation reaction is known as kinases. However, ATP is required in the process phosphorylation because it is needed as a donor.

6 0
4 years ago
What structures are found in all cells? select two options
Finger [1]
You’ll need to attach an image showing the choices or type them. But structures that are found in both plant and animal cells include the cell membrane, ribosomes, cytoplasm, and DNA.
8 0
3 years ago
Write 2 organisms that would have the most similar DNA.
ira [324]

Answer:

I think ... maybe ... dog and wolf?

Explanation:

because dog is just the domesticated version of wolf, then this may be possible - but this is just a very basic answer. other answers like chicken and dinosaur may be true as well depending on how specific your question is.

6 0
3 years ago
A pine cone would be considered a structure from which of the following?
Marta_Voda [28]

i think the answer can be a or c


8 0
3 years ago
Read 2 more answers
Other questions:
  • In crocodiles, the sperm and egg combine inside the body of the female. Then the female lays the eggs, and the young develops ou
    8·2 answers
  • Which of the following was NOT a weakness of the Articles of Confederation?
    13·2 answers
  • Describe two ways in which lava flows can be controlled
    9·1 answer
  • How do humans and animals interact with each other prezi?
    6·1 answer
  • Energy that is not passed on from one trophic level to the next is _______.
    11·2 answers
  • How does the structural organization of membranes provide for transport and recognition?
    10·1 answer
  • I don’t get this, can someone help me? Please
    14·2 answers
  • Bones are composed of a type of connective tissue called __________ tissue, immature bone cells that produce bony tissue are cal
    13·1 answer
  • What do both the theory of evolution and the cell theory have in common as scientific theories? (2 points) Both have strong scie
    6·1 answer
  • Which statement about vacuoles is true?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!