Plant cells have a cell wall, vacuole. Under the microscope the most dominant characteristic you can see to identify the cell is the membrane, nucleus and structure of the cell, structure meaning the shape of the cell and the proximity between the cells. By observing the sample pictures of plant and animal cells before the investigation, we noticed that plant cells structure is more angular and has a cell wall which appears denser. Animal cells structure appears more oblong and have a softer looking
LABORATORY REPORT EXERCISE #5 INTRODUCTION TO THE COMPOUND LIGHT MICROSCOPE, PLANT AND ANIMAL CELLS Name_______________________________Section_____Teacher______________Date________ PRE-LAB QUESTIONS - answer the following questions using your textbook and valid internet sources. Be sure to cite your sources at the end of the prelab. You can type your answers to all questions except #1 and #9 directly into this document and then submit via Canvas. Type the answers for #1 and #9 at the end of the document. 1.
We then obsevered the two slides for number of cells as well as for food vacuoles inside a cell using a microscope at times of 0,5,10,20, and 30 minutes. Results The following graphs show the results of this experiment. The tetrahymena sample that was introduced to concentrated tobacco had a lower cell/vacuole ratio than the tetrahymena sample that was not exposed to
We use Mendelian genetics to study the genetics of C. elegans. C. elegans have very similar genetics structure to humans. C elegans belongs to Phylum Nematode species which is very different from the earthworm. C. elegans is the first eukaryotic organism to have an entire genome sequence. It is very easy and simple to conduct an experiment on C. elegans that’s why the majority of laboratories use this organism.
Although transformation occurred in both plates with the pGLO plasmid, only the plate containing arabinose sugar had fluorescent colonies when observed under UV light.
Part A: Osmosis practical task Aim: To observe the effects of osmosis in rhubarb cells. Hypothesis: Water will be extracted out of the cells in the salt solution causing the cells to look different to the cells in the freshwater solution. Materials: Rhubarb Distilled water in a dropping bottle Salt solution in a dropping bottle Microscope, slides, and coverslips Forceps and razor blades or scalpel Paper Towel Method: Clean and dry a slide and coverslip.
Unknown Lab Report Unknown # 25 By: Jenna Riordan March 19, 2018 Bio 2843 1. Introduction Microbiology is the study of microorganisms found in all different environments throughout Earth, from the hot thermal vents at the bottom of the ocean to the ice at the top of a mountain.
Blackness is the absence of light, and
When humans are surrounded in an endless chasm of darkness, they find it necessary to grasp onto whatever dim hope may be near them. They find it necessary to set their minds onto a mission or action, however feasible or relevant, and turn all thoughts away from death or despair. Light and dark are words commonly thrown about, usually to describe gradients of color. But humans need light in the sense of comfort, a way out, or the promise of salvation. They have to find this light in life, to turn away from the darkness.
Dark. “Let’s ride him back and back, eh? Make a babe in arms, a babe for the Dwarf to carry like a clown-child, roundabout in parades, every day for the next fifty years, would you like that, Will? To be a babe forever?”” (Page 233)
Plasmolysis takes place as the cell loses water. Whereas if the piece of potato were put into a solution that has a low concentration of sucrose then the potato piece would increase in mass because the water is moving into the cell, which means the water is moving from a higher concentration (solution) to a lower concentration (cell). The cell is hypertonic and the solution is hypotonic. If the potato piece were put into a solution that was of an accurate concentration (which means that it was neither concentrated nor dilute) then the potato slice would neither gain nor lose mass because the concentration of water and the solute (sucrose) is equal in both the cell and solution. Both, the cell and the solution are
In my descriptive piece, my character stays out in the open streets until the sun starts to set and the night sky starts to spread. And once the character makes their way to the alley, it becomes so dark that they can barely tell when their eyes are closed while possibly being chased, giving the impression of being in an obviously unsafe environment in the dark, therefore connecting with my title. I made the title a bit of a ‘show-it-don’t-tell-it’ type where it is actually much deeper than it lets on. The darkness links with my idea of contrast in the first paragraph, “The earth that bares no life at all is dull under the few glares of the sun that tries to fight its way through the black barriers that doom our city.”
