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DedPeter [7]
3 years ago
4

Which statement is true about a cell wall but not a cell membrane

Biology
2 answers:
Semmy [17]3 years ago
6 0

Answer:

cell membranes need to made from a more permeable material to allow things to pass in and out more easily. and cell walls are not.

Explanation:

azamat3 years ago
3 0
<span>One statement that might be true about cell walls but not about cell membranes is that they are usually made out of cellulose. Plant cells have cell walls, and animal cells have cell membranes, but cell membranes need to made from a more permeable material to allow things to pass in and out more easily.</span>
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How are niche and habitat related?
Sergio039 [100]

Answer:C

Explanation:The role a species plays in the ecosystem is called its niche. A habitat is the physical environment in which a species lives.

6 0
3 years ago
What is the energy requirement in kJ/mol to transport a proton across the mitochondrial inner membrane in plant cells at night w
lions [1.4K]

Answer:

C. +23.1 kJ/mol

Explanation:

the formula to use to calculate the energy requirement in kJ/mol to transport a proton across the mitochondrial inner membrane in plant cells is:

ΔGt = RTIn  \frac{C_{2} }{C_1}   + ZFΔV

let's list the values of the data we are being given in the question to make it easier when solving it.

Z= 1

F= 96500C (faraday's constant)

ΔV= 160mV = 0.160V

R= 8.314( constant)

T= 15ºC ( converting our degree Celsius into kelvin, we will have 273.15k+ 15 = 288.15K)

∴ T= 288.15K

Putting it all together in the formula, we have:

ΔGt = 8.314 × 288.15 × 2.303 log \frac{C_{2} }{C_1}  + 1  × 96500 × 0.160

ΔGt = 5517.25   [ -(log(H^{+}_{out} ) + log(H^{+}_{in} )_{in}  +15440

ΔGt  = 5517.25 (pH_{out} - pH_{in}  +15440

Given that the pH  differential gradient  across the membrane is 1.4pH units. It implies that;

ΔGt  = 5517.25 × 1.4 + 15440

=  7724.15 +15440

= 23164.15 Joules/moles

= +23.1 KJ/mole

4 0
4 years ago
Why is it important to avoid applying too much nitrogen fertilizer?
sergejj [24]

Answer:

“When we put out too much, we see excessive vegetative growth and that can lead to boll rot and that can lead to problems with insects.

Explanation:

that what i know

5 0
3 years ago
Name five dygestive enzymes secreted by the intestinal glands​
enyata [817]

Answer:

5 digestive enzymes secreted by the intestinal glands :

Amylase - Maltase - Lactase - Lipase - Proteases

8 0
2 years ago
How are gravity and mass related?
Stella [2.4K]

Answer:

️

Explanation:

it's common sense :)

8 0
3 years ago
Read 2 more answers
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