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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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PLEASE HELP I WILL MARK BRAINALISTTTT
Ira Lisetskai [31]

Answer:

22. is a

23. is b

Explanation:

carbohydrates are made up of carbon, hydrogen, and oxygen

hope this helps :) have a nice day !!

**please let me know if this was wrong**

5 0
2 years ago
In many areas of the world, food shortages are common. To improve crop growth, what should be done to help acidic soil
ad-work [718]
In acid soils you can select the crops that can growth in this conditions (pH 6.0 - 6.5 is slightly acidic, and you can find cultures that can be cropped under this conditions). If soil is acid to highly acidic , in some areas of Northern Spain the use to increase the pH by liming the soil in a gradual / gentle way. You can find different product for liming fron rocks, wastes (from marble industries; animal bones; etc
8 0
2 years ago
Which two organelles can be found in a plant cell that are not found in animal cells ​
Liula [17]

Answer: Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells.

6 0
3 years ago
Read 2 more answers
According to the Punnett square, offspring from these two parents have a ____________ chance of inheriting two b alleles. Indivi
aliina [53]

Explanation:

50%; homozygous recessive; phenotype

According to the Punnett square, offspring from these two parents have a <u>50%</u>chance of inheriting two b alleles. Individuals that inherit two b alleles are <u>homozygous recessive </u>. Inheriting two b alleles confers the <u>phenotype</u> of blue eyes.

Inheritance describes the way in which certain traits are passed onto offspring of sexual reproduction. For instance, co-dominance, both of a gene's alleles are present, and notable in the phenotype.

The nucleus is a large membrane-bound organelle that houses the genetic information, DNA, in the cell. Sequences of DNA make up genes which can have different forms called alleles and comprise the genotype. DNA is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins. These proteins, when expressed, are referred to as an organism's phenotype.

Learn more about transcription at brainly.com/question/11339456

Learn more about DNA and RNA brainly.com/question/2416343?source=aid8411316

Learn more about proteins and carbohydrates at brainly.com/question/10744528

#LearnWithBrainly

3 0
3 years ago
Select all that apply: Which of the following affect(s) the half-life of a radioactive substance?
frutty [35]

Answer:

The correct answer is option A, the type of isotope

Explanation:

The half life of a radioactive substance is a constant value and thus it is not affected by the temperature, catalyst or mass of the substance.  Basically it is the time taken by a radioactive substance to reduce its mass by half of its actual value. Radioactive decay takes place only when the atomic nucleus becomes unstable and thus the isotope type is the only factor which affects the radioactive decay of any element.  

8 0
2 years ago
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