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
Oliga [24]
3 years ago
15

What does the plasma membrane do? A. makes food for the cell B. reproduces cells C. keeps the cell small D. encloses specific st

ructures
Chemistry
2 answers:
Hoochie [10]3 years ago
5 0

Answer:

the answer is  D. encloses specific structures

Explanation:

Mila [183]3 years ago
3 0
<span>D. encloses specific structures</span>
You might be interested in
Are all physical reactions reversible?
LUCKY_DIMON [66]

Answer: answer is A

Explanation:

6 0
3 years ago
Which component is required for the activation of some enzymes?
shepuryov [24]
The best answer is letter A. 
The main factors that change the speed of enzymatic reactions are temperature, pH and substrate concentration (quantity). <span>There are enzymes that need other associated molecules to work. These molecules are called enzyme co-factors. They can be organic ions like mineral salts.</span>
5 0
3 years ago
Read 2 more answers
25 POINTS:)
Digiron [165]
I suppose that the answer is A
6 0
3 years ago
I know this isn't school-related but Is all-purpose flour the same as self-rising flour?
Rainbow [258]

Answer:yes

Explanation:

I am a baker owo

4 0
3 years ago
Read 2 more answers
What mass of sucrose (C12H22O11) should be combined with 546 g of water to make a solution with an osmotic pressure of 8.80 atm
lesya [120]

<u>Answer:</u> The mass of sucrose required is 69.08 g

<u>Explanation:</u>

To calculate the concentration of solute, we use the equation for osmotic pressure, which is:

\pi=iMRT

Or,

\pi=i\times \frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}\times RT

where,

\pi = osmotic pressure of the solution = 8.80 atm

i = Van't hoff factor = 1 (for non-electrolytes)

Mass of solute (sucrose) = ?

Molar mass of sucrose = 342.3 g/mol

Volume of solution = 564 mL    (Density of water = 1 g/mL)

R = Gas constant = 0.0821\text{ L.atm }mol^{-1}K^{-1}

T = Temperature of the solution = 290 K

Putting values in above equation, we get:

8.80atm=1\times \frac{\text{Mass of sucrose}\times 1000}{342.3\times 546}\times 0.0821\text{ L.atm }mol^{-1}K^{-1}\times 290K\\\\\text{Mass of sucrose}=\frac{8.80\times 342.3\times 546}{1\times 1000\times 0.0821\times 290}=69.08g

Hence, the mass of sucrose required is 69.08 g

5 0
3 years ago
Other questions:
  • What are 3 ways Venus is more like earth than any other planet​
    15·1 answer
  • A thermometer that was used in a calorimeter was consistently 2.7 °c too high. how would this affect the calculations of δh for
    10·1 answer
  • Sound travels most quickly through solids because _____. solids have greater frequencies the molecules in solids are very close
    12·2 answers
  • Why can't astronomers take a picture of a black hole?
    15·2 answers
  • How is an atomic radius measured?
    11·1 answer
  • At a certain temperature, a mixture of 2 gases, 11.2 g of oxygen and 104.75 of krypton exert a total pressure of 4.25 atm. What
    12·1 answer
  • How do catalysts increase the rate of a chemical reaction?
    5·2 answers
  • 20 Points!!<br><br> Need it as soon as possible.
    13·2 answers
  • Here is the electron configuration for Magnesium. How many total electrons are in the 2nd energy level?
    5·1 answer
  • True or false, when a material loses thermal energy, it usually contracts.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!