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The cell membrane is made of phospholipids and is selectively permeable, or semipermeable. Which major theme in biology does this statement represent?
A.
DNA transcribes into RNA, and RNA translates into proteins.

B.
All living things require an energy source.

C.
All organisms share seven basic characteristics.

D.
Structure relates to function.

2006-12-22 08:16:10 · 7 answers · asked by Anonymous in Science & Mathematics Biology

7 answers

D for Definitely

2006-12-22 08:23:52 · answer #1 · answered by ♥ Jenn ♥ 3 · 1 0

Use process of elimination to solve, which helps on all multiple choice questions on all types of tests. Most important, though, is to thoroughly assess the statement, gathering all the info:

Cell membrane is one of many cell structures, (phospho)lipids are one of the four biological macromolecules, permeability is a cell function.

B and C can definitely go since there is no mention of energy and the statement also doesn't mention 7 characteristics. A can't be right, because there is no mention of proteins or DNA.

Best of luck on this and other tests!

2006-12-22 08:43:19 · answer #2 · answered by teachbio 5 · 0 1

D because the structure of the lipid bilayer which is selectivey permeable allows certain molecules to get in and out of the cell.

2006-12-22 08:24:39 · answer #3 · answered by Anonymous · 1 0

D, because of the arrangement of the phospholipids (hydrophobic tails in the membrane, hydrophillic heads outside the membrane) the membrane "selects" which molecules can freely pass through (small molecules, water, etc) while larger or highly charged molecules cannot freely pass.

2006-12-22 08:23:27 · answer #4 · answered by dally1025 3 · 1 1

there is fairly some solutions to 4, yet as quickly as we are speaking approximately bio, and photosynthesis extremely, the molecule loses electrons whilst it particularly is hit by using sunlight. I took Ap bio like 2 years in the past, i think of its the p700 and p680 the place the sunlight hits and removes electrons from. The electrons are then transferred to the etc (electron transport chain).

2016-10-18 21:16:38 · answer #5 · answered by ? 4 · 0 0

I think D, but you shouldn't take my word for it. I might not know a single thing about Biology.

2006-12-22 08:18:20 · answer #6 · answered by somewherein72 4 · 1 0

d for sure

2006-12-22 08:19:09 · answer #7 · answered by Anonymous · 1 0

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