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belka [17]
3 years ago
9

Which is a factor that determines whether a molecule can cross a cell membrane?

Biology
2 answers:
stepladder [879]3 years ago
6 0

Answer:molecule

Explanation:m

artcher [175]3 years ago
4 0

Answer:

 if a molecule is too large it cannot pass. also it depends on the concentration of a specific substance inside the cell. similarly, if a molecule is polar it cannot penetrate the phospholipid bilayer. 

there are proteins that work as channels and pumps that allow these molecules to pass

Explanation:

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The genetic code is redundant. What is meant by this statement?
storchak [24]

Answer:

This means that one amino acid can be coded by more that one codon.

Explanation:

A triplet code that code for an amino acid during translation is called genetic code. The genetic code is said to be redundant because a single amino acid can be coded by more that one triplet codon.  

So there can be synonymous codon for one amino acid. For example, leucine, serine, and arginine have 6 synonymous codons.

The genetic code is unambiguous also because each triplet codon can only code for a particular single amino acid. Genetic code is also universal which means the same code is used in all life forms.

4 0
3 years ago
If anyone is willing to help me, I will greatly appreciate it. I can’t afford to fail… I need to graduate so I can achieve my go
Valentin [98]

Answer:

1) you're going to have to flip the coins (or fake numbers) for the experimental trials.

2) for the theoretical, there is 1/2 chance for heads or tails with each toss, so you'd expect that out of 10 tosses, 5 heads, 5 tails. out of 100 tosses- 50 heads, 50 tails.

When tossing 2 coins- 1/2×1/2 = 1/4 (25%) chance that 2 heads, 2 tails, or 1 heads & 1 tails. Deviation value comes from after you done your flipping and recorded your data. So if on 100 flips you actually got 50 and 50 (rarely us that exact ;), the deviation from the expected of 50/50 would be 0.00. If however you flipped 100 heads or 100 tails (impossible), then the deviation value would be 1.00.

|(100-50)| ÷ 50 = 50÷50 = 1.00

So usually you may have data like: 47/53 or something a little off than 50/50, making deviation |(47-50)| ÷ 50 = 3÷50 = 0.06.

Now the number of flips is important for the outcome! So if a coin toss if 10 times had 4 heads, 6 tails, the deviation value would be:

|(4-5)| ÷ 5 = 1÷5 = 0.20

So increasing the # flips DECREASES the deviation value!!

Whether it's from 10 to 100, or from 100 to 200. Look at my example of how the 10-flip deviation of 0.20 decreased to 0.06 with 100-flip

5 0
2 years ago
Read 2 more answers
Suppose that a plant diease kills all the fruit . The change could become a on the birds
VikaD [51]
The change is harsh on birds. Food supplies goes down and birds can become ill from the disease
6 0
3 years ago
..If two solutions are isotonic to each other, then...
Naily [24]

Answer:

They have the same concentration.

Explanation:

Isotonic, by definition, means that the two solutions are of equal concentration

8 0
3 years ago
What is the best definition of excretion?
Dimas [21]
The process of eliminating metabolic waste!
8 0
3 years ago
Read 2 more answers
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