Cellular biology lab – homework #3 due to the week of nov 10-14th you may use the lab manual, the diffusion maintains the concentration gradient that’s required by the cell in order to complete the process 5 describe why the medium the dyes diffuse through can affect the rate of diffusion how to design a lab in biology ib. The glucose test strip had changed colors which indicated there was a presence of glucose in the beaker what molecules remained inside of the dialysis bag the starch had remained inside of the dialysis bag 3 of the substances that diffused through the bag, did all of the molecules diffuse out about half of the glucose did diffuse through the bag 4. Glucose solution with different concentration | 60cm3 | sulphric acid (1m) | 45cm3 | potassium permanganate | 18cm3 | 3 unknown solution | 10cm3 for each solution | methodology refer to student's handbook for biology hl (year 1/2012) of college mara banting ~ page 180 collective data aqualitative data 1. The trinder method is used to determine glucose concentration only, (lott et al, 1975) this method was first described by trinder in 1969 thus named after him, (lott et al, 1975.
Factors affecting blood glucose levels print reference this published: 23rd march insulin is the hormone that controls that lowers the blood glucose concentration and its deficiency or insensitivity by target cells causes diabetes biology essay writing service essays more biology essays we can help with your essay find out more. This essay discusses the factors affecting the blood glucose levels to fluctuate, the natural mechanism of the body to control it, the inability of the body to control it and the disease it causes. Ap biology photosynthesis lab bethany boyer due 11/12/14 lab write-up questions first experiment 1) the independent variable in this experiment was the presence of co2 (carbon dioxide) the dependent variable was the speed at which the leaf disks started to float.
Questions 1 which substance crossed the dialysis membrane what evidence from your results proves this the glucose crossed the dialysis membrane the glucose test strip had changed colors which indicated there was a presence of glucose in the beaker what molecules remained inside of the dialysis bag the starch had remained inside of the dialysis bag. Ap biology 2004-2005 lab 5: cellular respiration essay 1990 the results below are measurements of cumulative oxygen consumption by germinating and dry seeds gas volume measurements were corrected for changes in temperature and pressure a plot the results for the germinating seeds at 22°c and 10°c b.
Essay on biology lab 6 essay on biology lab 6 611 words apr 8th, how does the glucose concentration affect diffusion rate the show more related cell biology lab report biology lab essay 9918 words | 40 pages biology design lab 4465 words | 18 pages biology photosynthesis lab 934 words | 4 pages. Mung bean respiration lab the effect of glucose on the growth of mung beans as measured in percentages of glucose mixed in water annie spendrup i purpose the purpose of this lab was to examine the effect of a glucose-water mixture on the growth and development of mung beans.
Biology essay biology essay the biology of learning and memory flashcards increasing the glucose concentration will increase the amount of c02 produced which will suggest that the rate of cell respiration has increased biology design lab alfred kinsey. Blood glucose was monitored weekly for all mice after five weeks, there was no change in average body weight between groups results indicated that blood glucose concentrations increased significantly in the mice that drank water compared with those that were supplied with coffee. Osmosis rates in artificial cells daniel george department of biology grand valley state university 1 campus drive allendale, mi 49401 [email protected] abstract the lab for this paper was conducted for the topic of osmosis, the movement of water from high to low concentration five artificial cells were created, each being filled with different concentrated solutions of sucrose. Michelle kim 2012120 biology iso-osmolar concentration of carrot cells lab introduction for a more thorough understanding of this lab introduction, the concepts of, iso osmolar, membrane, equilibrium, and concentration gradient evaluated.
How to design a lab in biology ib essay design research question: this should be a clear focused question that says exactly what you are investigating it shouldn't be too long and it must include the dependent and independent variables.