Chloroplasts Chloroplasts are food producers of the cell and they make the plant green. They are organelles found in plant cells and animal cells do not have chloroplasts. Also‚ they have a eukaryotic alga that conducts photosynthesis. In a plant cell there can be anywhere from 10 to 100 chloroplasts in one cell. They are approximately 4 to 6 cm in diameter and shaped like a satellite dish with the concave face forward toward the light. Also‚ they are similar to mitochondria but mitochondria works
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Question and Answer 1. Paper reported that Olfm4 deletion induces colon adenocarcinoma in APCmin mice‚ so why after miR-34 deletion‚ olfm4 positive stem cell number was increased and tumor incidence was also increased? Their research was working on the colon tumorigenesis‚ but we are working on the small intestine. Also in our model‚ colon tumor is very rare‚ could because of different genetic background. The function of Olfm4 may be also tissue specific. 2. Do these changes caused by the genetic
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| |E. gingivalis |E. coli |E. nana |I. buetschlii |E histolytica | |Other names |A. gingivalis‚ A. / E. |A. coli‚ Endamoeba homini‚ |Entamoeba nana‚ E. |Iodine Cyst of Wenyon‚ |A. coli / dysenteriae‚ | | |buccalis |Loschia coli‚ Councilmania |intestinalis |Entamoeba williamsi/ |Entamoeba dysenteriae /
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the middle levels decreases (Lumen‚ 2016). Similarly‚ the U.S. and the E.U. have shown almost identical trends in the share of employment rise by the high and low skill jobs‚ and a loss by the middle skill jobs‚ between 1993 and 2006 (Kearney‚ 2017). Polarization became an
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Smooth muscle is non-striated muscle‚ made up of thin muscle cells. It is found in trachea‚ bronchus and bronchiole. They can contract‚ and when they do; it will tighten the airway‚ and it makes the lumen of the airway narrower. The flow of air to and from the alveoli can restrict if the lumen gets tighten up. They control slow movements in the walls of instines and the stomach. Elastic fibres are found in trachea‚ bronchus and bronchiole. It gets formed in the loose tissue when the airway
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APPENDICITIS Reporter: Rita May C. Reyna APPENDIX The appendix is a normal true diverticulum of the cecum. Like any diverticulum‚ it is prone to acute and chronic inflammation‚ and acute appendicitis is a relatively common entity. Other lesions‚ including tumors‚ can also occur in the appendix but are far less common. The appendix is a wormlike extension of the cecum and‚ for this reason‚ has been called the vermiform appendix. The average length of the appendix is 8-10 cm (ranging from 2-20
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tube leaving water to move rapidly‚ free of obstacles. Tracheids are long and thin with tapered end walls and a narrow lumen. Vessel elements however are broad‚ short and have wider lumen. These vessel elements are arranged in columns forming the vessels. Vessels are vital in rapid water transport from roots to shoots as little resistance to water flow is offered by their broad lumen. Pitted tracheids link with adjacent cells to form a series of pipes along the stem‚ these pipes increase the resistance
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2402 Lab Exercise 32 Blood Vessels The primary goal of this lab is to learn the names of many blood vessels. You will use the models provided as well as pictures in your lab book. Microscopic Structure of Blood Vessels Tunica intima: lines the lumen of the blood vessel. Continuous with endocardium of heart. Is extremely smooth to decrease resistance to blood flow. (Made of epithelium) Tunica media: More bulky middle coat. Composed of smooth muscle and elastin. Regulation in the diameter of blood
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salt and electrolytes which are transported into the epithelial cells after ingestion and thus lower the water potential of the cell by causing water to be pulled into the epithelial cells from the gut lumen‚ thus stopping diarrhoea. Diarrhoea is caused by an too high water potential in the lumen of the gut‚ often due to a movement of water by osmosis. In the case of lactose intolerance‚ when lactose is ingested it will not be broken down and continues along the gut‚ thus causing water to be pulled
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P5 – Describe the Structure and Function of the Cardiovascular System Changes in Stroke Volume Stroke volume is the amount of blood pumped out the left ventricle‚ every beat your heart makes. It can differ from your resting heart beat and your heart beat when exercising. Normally‚ when exercising‚ your heart rate increases meaning the stroke volume also increases. The blood pumped by the left ventricle is oxygenated‚ and will deliver oxygen to the muscle. The more blood injected in a heartbeat means
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