Potato Osmosis Lab
Microscopy, Cell Structure and Function
Task 2
I: Name and describe the four main types of tissues in animals stating their functions and their location in the body give two examples of each type.
The four main types of tissues that you will find in eukaryotes are connective, muscle, nervous and epithelial tissues; each of which having very different roles.
Connective Tissue
The first tissue type I am going to look at is the connective tissue. This tissue is found all over the body, including the central nervous system. It has many functions depending on where in the body you are looking. For example the fibrous tissue you will find holds the muscle tissue firmly onto the skeletal structure, which would be the tendons. Many closely packed …show more content…
Aim
To observe and measure the effect of osmosis on the mass of potato using a starch solution.
Introduction
In order to measure the effect of osmosis, eighteen pieces of potato were cut and placed in six groups, each group of three pieces cut to weigh as close as possible to one another. For each potato group, a test tube was half filled with a starch solution varying in concentration from 0% (water) to 1%.
Hypothesis
Through osmosis, I hypothesise that as the solution of the starch in each tube increases, the water content being reduced will cause the potato to release more water through the membrane to balance the starch solution, resulting in a decrease in the mass of the potatoes as the respective starch concentration increases, though maybe not for the 0% solution.
Risk Assessment
The potential danger of this experiment is relatively low. Nevertheless, lab coats and eye protection were worn when handling the starch concentration and extreme care was taken when cutting and weighing the potato using a scalpel on a slip-proof …show more content…
While this occurs the cell creates spindle fibers (specialised microtubules). Centrioles external to the nucleus form two pairs.
The reason they form two pairs is so that during the metaphase, where the envelope has disappeared the microtubules move in pairs to opposite poles of the cell. When the nucleolus has completely broken down it becomes possible for the spindle fibers toattach themselves to the chromosomes along the centromere.
Approaching the end of the process, anaphase is the point in which the paired chromosomes begin being dragged by the spindle fibers towards the poles. Eventually, during telophase the fibers disappear and the cell has been stretched, in preparation for cell division. Part of the parent cells membrane surrounds the new daughter cells, as the newly generated organelles move inside the daughter cells and the chromosomes move into the newly developed nuclei and the cell
Task 2
I: Name and describe the four main types of tissues in animals stating their functions and their location in the body give two examples of each type.
The four main types of tissues that you will find in eukaryotes are connective, muscle, nervous and epithelial tissues; each of which having very different roles.
Connective Tissue
The first tissue type I am going to look at is the connective tissue. This tissue is found all over the body, including the central nervous system. It has many functions depending on where in the body you are looking. For example the fibrous tissue you will find holds the muscle tissue firmly onto the skeletal structure, which would be the tendons. Many closely packed …show more content…
Aim
To observe and measure the effect of osmosis on the mass of potato using a starch solution.
Introduction
In order to measure the effect of osmosis, eighteen pieces of potato were cut and placed in six groups, each group of three pieces cut to weigh as close as possible to one another. For each potato group, a test tube was half filled with a starch solution varying in concentration from 0% (water) to 1%.
Hypothesis
Through osmosis, I hypothesise that as the solution of the starch in each tube increases, the water content being reduced will cause the potato to release more water through the membrane to balance the starch solution, resulting in a decrease in the mass of the potatoes as the respective starch concentration increases, though maybe not for the 0% solution.
Risk Assessment
The potential danger of this experiment is relatively low. Nevertheless, lab coats and eye protection were worn when handling the starch concentration and extreme care was taken when cutting and weighing the potato using a scalpel on a slip-proof …show more content…
While this occurs the cell creates spindle fibers (specialised microtubules). Centrioles external to the nucleus form two pairs.
The reason they form two pairs is so that during the metaphase, where the envelope has disappeared the microtubules move in pairs to opposite poles of the cell. When the nucleolus has completely broken down it becomes possible for the spindle fibers toattach themselves to the chromosomes along the centromere.
Approaching the end of the process, anaphase is the point in which the paired chromosomes begin being dragged by the spindle fibers towards the poles. Eventually, during telophase the fibers disappear and the cell has been stretched, in preparation for cell division. Part of the parent cells membrane surrounds the new daughter cells, as the newly generated organelles move inside the daughter cells and the chromosomes move into the newly developed nuclei and the cell