When water moves out of the cell, the cell will shrink, and when water moves into the cell, the cell will swell and possibly burst. The Paramecium and Amoeba both had food and contractile vacuoles, but these were lacking in the Euglena. We were to indicate initial locations of molecules and predict in which direction they would move in diffusion into the bag, out of the bag, both into and out of the bag, or none.
Then we discarded the used glucose test strip. When the Paramecia feed, it does so by drawing its food into a funnel-shaped opening called the oral groove that is lined with cilia see Fig. Paramecia are smaller than Amoebas.
Sporozoans have no form of locomotion and are primarily parasitic, ingesting their food by absorption through their cell membranes. Discussion Protists seem to share certain characteristics even when they are classified into different groups.
If we determine the molarity of the sucrose solution that will help produce equilibrium between the solution and the contents of the potato cell, we can determine solute potential: Then we tied off the top of the bag to close it while leaving enough room in the bag for expansion.
They have all the organelles necessary for a variety of functions such as digestion, excretion, reproduction, respiration, and movement.
Unlike the Amoeba and the Paramecium, the Euglena has plant-like characteristics. The example protists were: They swim by rotating slowly and changing directions often. The three protists examined in this lab are examples of protists that use specialized structures for locomotion.
The membrane is semipermeable, meaning only specific molecule may enter the cell. It is usual to run a positive and negative control with any analysis as a way of making sure that the method worked. Based on the observations in this lab, protists are very small yet highly complex.
After completing the activity with figure 2, we were able to compare our predictions about the outcome to the actual results of the experiment.
For example, if you are trying to determine protein levels by spectrophotometry, you would record all the spectrophotometry readings for your standards and samples in the first table, and use the standard readings to construct a graph of protein concentration versus absorbance readings a standard curve.
Distilled water was initially in the cup and is predicted to stay in the cup. Hypertonic solutions are solutions with higher amounts of solutes and hypotonic solutions are solutions with a lower amount of solutes. They move with the help of microscopic hair-like structures called cilia, which act like oars to push them through the water.
Method or materials and methods How you carried out the experiment and what reagents you used Normally, the method is given out as part of the practical notes and very rarely would you be required to rewrite it, although you may have to note any alterations.
Their organelles are a mixture of animal and plant structures, but they all have nuclei, a feature which distinguishes Protists from other unicellular organisms.
The Euglena moves rapidly, using its flagellum to propel itself through the water rather quickly, shifting directions with whip-like movements. Sucrose was initially in the dialysis bag and is predicted to stay in the dialysis bag. The organelle that gives it this plant-like quality is the chloroplast see Fig.
Paramecium moved with cilia and so is classified as a ciliate see Fig. We then collected the final amounts of glucose and completed Table 1. What molecules pass through the cell membrane easier than others. If the amount of raw data is excessive, consider presenting it as an appendix.
The passing of molecules is either through active transport passage of materials using energy or passive transport passage of materials using kinetic energy. The overall reaction can be represented by a simple chemical equation: 6 CO 2 + 6 H 2 O + Light energy → C 6 H 12 O 6 + 6 O 2 There are two main processes in photosynthesis, light reaction and the Calvin cycle.
In light reaction, solar energy is converted to chemical energy.
SAMPLE DESCRIPTIVE LAB REPORT. Paramecium moved with cilia and so is classified as a ciliate (see Fig. 2). Finally, Amoeba moved with a pseudopod, and so is a sarcodine (see Fig.
3). All three protists had a nucleus, as expected, but the Paramecium. Sample Lab Report #2 in the Writing Guidelines for Engineering and Science Students: guidelines to help students of science and engineering make their writing more efficient for others to read and to make the process of writing more efficient for them to perform.
BIO Practical Report 2 | An investigation on the effects of different treatments on light-dependent electron transport using chloroplasts from silverbeet leaves Introduction Green plants as autotrophs synthesize organic compounds via photosynthesis.
Tampa Bay Buccaneers Injury Report: The official injury report of the Buccaneers. Access Expansion Below is an extended example of a report structure that looks at how you might arrange the hierarchy of headings and subheadings.Bio20002 prac report 2 1