They are rod shaped, spherical and spiral and they divide by binary fission. They are smaller in size as well. Eukaryotic have tangled DNA and they have a nucleus. They have a multicultural cell type and they have a true membrane bound nucleus and they depend on oxygen for their metabolism. They are larger in size. All of this information was found via the web on this URL: http://www. Differ. Com/difference/Eukaryotic_Cell_vs.._Prokaryotic_Cell 2. Describe three differences and three similarities between plant and animal cells. Three similarities: Both have a cytoplasm, ribosome, mitochondria and a clues.
Three differences: The plant cell has a cell wall and the animal cell does not. The animal cell is round and the plant cell is rectangular. The plant cell has plasmids and the animal cell does not. Http://www. Differ. Com/difference/Animal_Cell_vs.._Piano_Cell C. Form a hypothesis 1. Hypothesize about how you might be able to sort a mixed population of cells into prokaryote and eukaryote. Try to be practical, build on your understanding of the differences between the two cell classes. My best idea would be to sort them based on size since the eukaryote cells are smaller in size ND the prokaryote cells are larger in size and shape.
Another way to tell is that the eukaryote has a nucleus and will have a large amount of organelles that are visible through the microscope. Here is the video that helped me understand this: http://www. Youth. Com/watch? V=way_Fuzzy&featu re- player_embedded De#! 2. Hypothesize about a means to separate out plant cells from a mixed sample of eukaryotic cells. Plant cells have a cell wall to give them structure and support and water regulation. Plant cells have a central vacuole which regulates water and stores nutrients. Plant cells also have chloroplast which they use for energy from sunlight. Http://www. Youth. Com/watch? V=exorbitant The purpose of this lab was to get an understanding of the different types of cells and their size. Some of these cells are visible to the human eye and some are only visible under a microscope. It also shows the function of specific cells and demonstrates how structures of a cell can be identified. My observations include several different types of cells including bacteria like e coli and others. Observations: Although a grain of rice or coffee bean is observable and cognizable to the human eye, mitochondria and E. Coli bacteria are not.
They are dramatically smaller in size yet dramatically larger in size when compared to single atoms. It is interesting to understand how certain chemical substances or antibodies attach themselves to specific cell structures. This makes the organelles and other cellular structures like the cell wall observable and identifiable under a microscope. Conclusion: Different organisms vastly differ in size. This is fascinating because it demonstrates that there is so much operating beyond the scope of human perception. Microscopes are extremely powerful in being able to identify different items, bacteria, and single cells/atoms.
Chemical and antibody lacing or dying can be extremely useful in identifying types of cells. This could be used to differentiate between eukaryotic and prokaryotic cells because eukaryotic cells have mitochondria. If a chemical substance or antibody which typically attaches itself to mitochondria is introduced to a prokaryotic cell, the substance will not attach itself. Therefore, we are able to determine that the cell in question is prokaryotic. Virtual Virtual Lab 2: Cellular Processes A. Bacterial Growth. 1 . Estimate how long it takes for this population of bacteria to double.
Hint- this population doubles multiple times during the duration of this recording. In the first cell frame there was two cells when I moved up the time to approximately 20 minutes it appeared to have doubled. Based on this I would say anywhere from 20-25 minutes. B. Cellular reproduction 1 . Estimate the percentage of time that a constantly developing cell spends in interprets. Use the cell cycle In KS. According to the link it says anywhere between 12-24 hours so I would say approximately 90 % of the cycle. 2. In random selection of 100 such cells, estimate the number that would be undergoing mitosis at any given time. Use your answer from part 1 If the cells spend 90 % of the time in interprets then I would have to say that 10 % go through mitosis at any time so approximately 10. 3. Understand the basic differences between mitosis, meiosis, and binary fission. Is mitosis more similar to meiosis or to binary fission? Explain your reasoning. In mitosis the chromosomes align and then split in two where they replicate the original cell. The only stage of mitosis creates daughter diploids which come from the single ell come from and they are identical daughter nuclei. Meiosis has two separate cycles.
Those cycles include interprets, protease, metastases, anapest and telephone and then after the cycle there are four daughter haploid cells created. Prokaryotic cells need to use binary fission to reproduce and also reproduce the DNA within a cell. Prokaryotic cells do not have a nucleus and their cell division is more similar to mitosis than meiosis because in binary fission the replication of two daughter cells come from the single cell which was identical. C. Cellular metabolism 1. In a paragraph or two compare and contrast photosynthesis and cellular respiration. Cellular respiration and photosynthesis both contain metabolic pathways.
They both use an electron transport system to produce a proton and TAP. Cellular respiration occurs in the mitochondria and uses oxygen and expels energy and usually occurs at night and in both plants and animals and also releases carbon dioxide. Photosynthesis can occur only in light and stores energy and also uses water. 2. Describe the ecological relationship between photosynthesis and cellular respiration. The biggest thing these two share in a legislations is that one cannot work without the other. Without one then the other cannot occur. When cellular respiration releases carbon dioxide it is used as a raw material in photosynthesis.
Most of my information came from the links on the NU portal but I also used this website for additional information: http://www. Emcee. Mauricio. Due/faculty/bearable/book/obsolesces. HTML 3. Consider the balance between cellular respiration and photosynthesis. Hypothesize about what might happen if a large number of producers were suddenly removed from the biosphere. Where might carbon accumulate if the Asia of number of producers to consumers was markedly reduced? Be explicit. If producers were to be suddenly removed from the biosphere then there would be a large amount of carbon dioxide that would gather up in the atmosphere.
This would destroy the ozone layer and destroy life because oxygen would be depleting. Virtual Lab 3: Genetics I A Phenotype and Genotype of Dragons. You do not have to be able to access the Dragon website to answer these questions. Please type your solutions in bold faced font. 1 . Define genotype and phenotype. The genotype is the genetic makeup of a cell, an organism, or an individual. The honeyed is an organism’s observable characteristics or traits. 2. What is an allele? According to precautionary. Com, an allele is “One member of a pair or series of genes that occupy a specific position on a specific chromosome. B. Drosophila Lab. Enter the lab as a guest. You need to purchase a breeding pair of flies. Purchase a female mutant that has a small (vestigial) wing size and a male wild type fly. Wild types are genetically normal and are denoted with a +. Breed them and notice the resulting distribution of phenotypes. 1 Describe and explain the characteristic of the first generation (Fl) of flies. Is the vestigial wing characteristic dominant or recessive? The vestigial wing was recessive in the first generation of flies. There were 590 offspring that were male and wild type. There were 597 females who were wild type. 2.
Assume that the vestigial winged female’s genotype is iv and the wild type male’s genotype to be ++ and fill in the following Punned square. 1+ I lb 3. What percentage of the Fl generation would show the recessive characteristic phonetically according to your table? Are your experimental breeding results consistent with what you expect from this assumption and the logic of the Punned square? I would have to say 0% and this looks to be consistent with the Punned square. 4. Breed two of these Fl flies. To do this select a male and a female from the results of your first cross and put them in the breeding jar.
Describe and explain the characteristics of the second generation (IF) flies. There was a difference to this result of breeding. There were 452 female wild type +, 146 male with vestigial wings, 477 male wild type 4, and 128 female with vestigial wings. The noticeable difference was the wings on this breed of flies. 5. Use a Punned square to predict the ratios of a cross between two +v individuals. Is this consistent with your experimental observations? Yes, it is consistent my experimental observations. 11+ C. Genetic Disorders Library. Describe the three main classes of genetic disorders and give an example of each.