Answer:
1. The cells in our bodies are surrounded by these types of solutions. → Isotonic solution.
3. When an animal cell is places in this solution, it will burst (get layer) → Hypotonic solution.
4. When an animal cell is placed in this solution, it will shrivel or shrink (get smaller) → Hypertonic solution.
5. This is a solution with more solute than the cell. Hypertonic solution.
Explanation:
The cells in the body are in a balance of substances —concentration of solutes— between their cytoplasm and the extracellular space. This balance is dynamic in living beings, due to the constant exchange of ions and substances between the intracellular and extracellular space. For this reason, the extracellular medium is isotonic with the cytoplasm.
<u>A cell can lose or gain water depending on the amount of solutes that a medium has in which it is found</u>, with respect to the cytoplasm. This difference in solutes concentrations produces an osmotic gradient that drags water from the least concentrated solution to the most concentrated, through the process of osmosis, which seeks to achieve an equilibrium of concentrations.
- <em>When a animal cell is exposed to a </em><em>hypertonic solution</em><em> </em>—<em>with a higher concentration of solutes</em>— <em>it loses water and tends to </em><em>dehydrate and become smaller</em><em>.</em>
- <em>An animal cell in a </em><em>hypotonic solution</em><em> receives water, so it can </em><em>expand and even burst</em><em>.</em>
In practice, the concentrations of intracellular and extracellular solutes depend not only on the osmotic gradient, but also on the concentration gradient of substances.
Answer:
In order to find out the genotype we do a testcross of green pea pods with yellow pea pods.
Explanation:
1. If the F1 generation consist of green pea pods only then the genotype of the green pea pod is 'GG' (i.e the dominant alleles).
<h2>
TEST CROSS
</h2>
Green pea pods X Yellow pea pods
GG X gg
<u>Gametes:
</u>
G X g
<u> F1 Generation:
</u>
<h2>
Gg
</h2>
2. However if the F1 generation consist of 50% green pea pods and 50% yellow pea pods then the genotype of green pea pods is 'Gg' (both the dominant and recessive alleles).
Green pea pods X Yellow pea pods
Gg X gg
<u>Gametes:
</u>
G g X g
<u>F1 Generation:</u>
<h2> Gg, gg
</h2>
We can relate this to Mendel's Law of segregation and meiosis as
- Both the alleles segregate into seperate gametes (i.e they are sorted independent of one another).
- This segregation is similar to the first division of meiosis in which homologous chromosomes of gene are segregated in daughter nuclei
They will help the environment by allowing by allowing farmers to use fewer pesticides.
Answer:
Energy is stored in covalent bonds between carbon atoms
