michaeljordan23
  • michaeljordan23
What does it mean for a membrane to be selectively permeable? Only certain molecules are allowed to pass through. The membrane is rigid and only allows water to pass through. All types of molecules are able to pass into the cell. The membrane is rigid and nothing can enter or leave the cell.
Biology
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Koikkara
  • Koikkara
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anonymous
  • anonymous
Think if a membrane like a body guard type of doorman. Hes the one who only lets specific people in. and out. hes a selective doorman. what would your answer be?
michaeljordan23
  • michaeljordan23
Then newer is a?

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anonymous
  • anonymous
right on! :)
anonymous
  • anonymous
answer*
michaeljordan23
  • michaeljordan23
During the light-dependent reaction of photosynthesis, light energy is converted into which form of energy? chemical mechanical thermal electrical
anonymous
  • anonymous
would you be so kind as to give a medal?
anonymous
  • anonymous
oh i think i know this
michaeljordan23
  • michaeljordan23
Absolutely, could help me with the questions I have left please?
anonymous
  • anonymous
yes i can
anonymous
  • anonymous
oh i had a project on this let me check it real quick
michaeljordan23
  • michaeljordan23
I think it's A
anonymous
  • anonymous
Yes youre right. it converts into atp and nadph, which are both chemical energy
anonymous
  • anonymous
heres the pic i had in my project
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michaeljordan23
  • michaeljordan23
Why is the Calvin cycle considered a dark reaction?
michaeljordan23
  • michaeljordan23
Why is the Calvin cycle considered a dark reaction? It occurs only at night. It requires an absence of light. It turns the plant dark green. It can proceed in the dark.
anonymous
  • anonymous
The answer is D BECAUSE a dark reaction can either carry out at night or at daytime. it doesnt need sunlight because its not fueled with light. its energy source is CO2 from the air.
michaeljordan23
  • michaeljordan23
Which is true for both photosynthesis and cellular respiration? They are simple chemical reactions. They are complex chemical reactions. They require light energy from the sun. They require cells to use water.
anonymous
  • anonymous
so it can happen either in the dark or at night.
anonymous
  • anonymous
ok
anonymous
  • anonymous
hmm well im thinking the last one. photosynthesis does require water. but cellular respiration PRODUCES water.
michaeljordan23
  • michaeljordan23
Which statement best distinguishes plant cells and animal cells? There are more ribosomes in animal cells than in plant cells. Plant cells have more lysosomes than animal cells have. Plant cells have large vacuoles, and animal cells do not. The position of the nucleus in the cells is different in plants and animals.
anonymous
  • anonymous
cross out C because they both have vacuoles
michaeljordan23
  • michaeljordan23
I think its b
michaeljordan23
  • michaeljordan23
Is it right?
anonymous
  • anonymous
exactly. lysosomes are in animal cells. but they dont even exist in plant cells
anonymous
  • anonymous
WOAH wait i read that wrong
michaeljordan23
  • michaeljordan23
Are you gonna be online around 11 pm eastern time?
anonymous
  • anonymous
lysosomes are in animal cells but not plant cells so you gotta cross out B too
anonymous
  • anonymous
and no i dont think so why?
michaeljordan23
  • michaeljordan23
Because I just got to work, and I wondering if you could help me around that time
anonymous
  • anonymous
You have to review the information about transport mechanisms inside human body. How molecules in the GIT pass to systemic circulation . Why some kinds of antibiotics can't pass through blood brain barrier. All these things are releated to the permeability of membranes . For example , if you have a water soluble molecule in human gut , the gut membran will not allow it to pass. Only hydrophobic molecules can pass through human gut. gut is a selective membran for lipid soluble molecules.
anonymous
  • anonymous
I think the best answer would be only certain molecules are allowed to pass through. :)

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