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
irga5000 [103]
3 years ago
12

Help !!!!!!! cell membrane plants information due soon

Chemistry
1 answer:
Leno4ka [110]3 years ago
5 0
The cell membrane acts as a semi-permeable barrier in plants. In other words, is in charge or control of what comes in and out of the cell.
You might be interested in
AKALI METALS ARE HIGLY_______ SINCE THEY ______ easily to form ions. HELP ASAP
kvv77 [185]

Answer:

Reactive and lose 1 electron

Explanation:

4 0
3 years ago
What can scientists learn from index fossils?
olga2289 [7]

Answer:

dating and correlating the strata in which it is found

Explanation:

3 0
3 years ago
PLEASE HELP ME
ki77a [65]

Answer:

1.15 atm

Explanation:

According to Dalton's law of partial pressures, the total pressure is the sum of all the partial pressures of the gases present in the mixture.

Therefore we have:

Total pressure = partial pressure of carbon monoxide + partial pressure of oxygen + partial pressure of carbon dioxide

We were given the following:

Total pressure = 2.45 atm

Pressure of oxygen = 0.65 atm

Pressure of carbon monoxide = x

Pressure of carbon dioxide = 0.65 atm

Therefore:

2.45 = x + 0.65 + 0.65

2.45 = x + 1.3

x = 2.45 - 1.3

x = 1.15 atm

6 0
4 years ago
What happens to the partial pressure of oxygen in a sample of air if the temperature is increased?
ludmilkaskok [199]

Air is mainly composed of N2  (78%), O2 (21%) and other trace gases. Now, the total pressure of air is the sum of the partial pressures of the constituent gases. The partial pressure of each gas, for example say O2, can be expressed as:

p(O2) = mole fraction of O2 * P(total, air)  ----(1)

Thus, the partial pressure is directly proportional to the total pressure. If we consider a sealed container then, as the temperature of air increases so will its pressure. Based on equation (1) an increase in the pressure of air should also increase the partial pressure of oxygen.

6 0
3 years ago
Read 2 more answers
A piece of wood with a density of 0.85 g/cm^3 has a mass of 25 g. what is the volume of the wood?
Karolina [17]
Density = m/v  therefore    v = m/d     v = 25/0.85    v = 29.4117... cm^3 ( = 2.94 * 10^-5 m^3
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the percent of carbon-14 remaining after two half-lives?
    14·1 answer
  • Consider the half reactions below for a chemical reaction.
    8·2 answers
  • PPPLLLSSS HELP NOW 15 POINTS WHOEVER ANSWERS
    14·1 answer
  • how do we know that all the continents were all together at one point in time. writing prompt and it has to be at least 7 senten
    14·1 answer
  • The atomic number of an element configuration 2,8, 8,2,13​
    12·1 answer
  • A child receives a balloon filled with 2.42 L of helium from a
    5·1 answer
  • Someone please Help please When you are measuring your pulse (heart beats per minute) what system are you monitoring?
    5·1 answer
  • What is chlorine anyone tell​
    10·2 answers
  • How many grams of Zn are in 0.356 mole of Zn?
    7·1 answer
  • How much heat does it take to raise a 200g block of Aluminum 250C?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!