The cap-like acrosome covers the head of the sperm and releases enzymes that will help the sperm penetrate the egg.
<h3>What is acrosome?</h3>
The acrosome is a unique membrane organelle found over the anterior region of the sperm nucleus that has been largely preserved throughout evolution. This acidic vacuole includes a number of hydrolytic enzymes that, when produced, aid sperm penetration of the egg covers.
<h3>What is acrosome made of?</h3>
The acrosome is formed from the Golgi complex of the spermatid. The acrosome is made up of a protein matrix core and multiple hydrolytic and glycolytic enzymes that are essential for fertilization.
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<h3>
Answer:</h3>
Mole ratio of D to A is 1 : 4
<h3>
Explanation:</h3>
We are given the generic chemical equation;
4A + B → C + D
We are supposed to determine the mole ratio of D to A
What is mole ratio?
- Mole ratio is the ratio of the number of moles of reactants or products in a chemical reaction.
- We determine the mole ratio using the coefficients of reactants or products in question.
For example;
- In the equation, 4A + B → C + D, the coefficient of A is 4 while the coefficient of D is 1.
- This means, 4 moles of A reacts with 1 mole of b to produce 1 mole of C and 1 mole of D
- Thus, mole ratio of D to A is 1 : 4
Answer:
There is 1.9 moles of oxygen gas in the cylinder.
Explanation:
Pressure of the oxygen gas = P = 1.7 atm
Volume of the oxygen gas = V = 26.5 L
Temperature of the oxygen gas = T = 295 K
Moles of oxygen gas = n
Using ideal gas equation ;
![PV=nRT](https://tex.z-dn.net/?f=PV%3DnRT)
![n=\frac{PV}{RT}=\frac{1.7 atm\times 26.5 L}{0.0821 atm L/mol K\times 295 K}](https://tex.z-dn.net/?f=n%3D%5Cfrac%7BPV%7D%7BRT%7D%3D%5Cfrac%7B1.7%20atm%5Ctimes%2026.5%20L%7D%7B0.0821%20atm%20L%2Fmol%20K%5Ctimes%20295%20K%7D)
n = 1.8600 mol ≈ 1.9 mol
There is 1.9 moles of oxygen gas in the cylinder.
There are three dichloroethylen isomers: 1,1, dichloroethylene; 1,2 cis dichloroethylene and 1,2 trans dichloroethyelene.
1,1 dichlorothylene have two Cl - C dipoles on the same side of the molecule and they do not cancel each other, so this isomer has a net dipole moment.
1,2 cis dichloroethylene has two Cl - C dipoles on the same plane so they do not cancel each other, and this isomer also has a net dipole moment.
1,2 trans dichloroethylene has two Cl - C dipoles on different planes and they cancel each other. So this isomer has a zero dipole moment.
The answer is that one isomer of dichloroethylene has a zero dipole moment.
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