BIOL2220 Lab 3: Hill Reaction Introduction In 1937‚ Robert Hill discovered that isolated chloroplasts can generate oxygen when they are illuminated in the presence of a suitable electron acceptor‚ even in the absence of carbon dioxide. This finding was a landmark in the study of photosynthesis because it established that the source of the electrons used in the light reactions is water. It also confirmed that the released oxygen is derived from water instead of carbon dioxide. In chloroplasts
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how long do eggs and sperm live? eggs live about 24 hours sperm live from 48-72 hours‚ approx 3 days what are the stages of fetal development? 0-2 weeks are zygotes 3-8 weeks are embryos 9-38+ weeks are fetus when is the developing baby at creates risk for teratogenous effects? during the embryonic stage of growth how long is a trimester? 13 weeks 1st trimester is from the first day of the last menstrual period up to13 weeks
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Teen pregnancy is an epidemic that has swept our nation for many years. It can alter the lives of teenagers in extreme measures. It is almost normal to see a teenager with a baby in today’s society. Getting pregnant while you’re a teen will definitely cause you to have to change your life style to accompany a child. This could mean not going to school or potentially dropping out of school permanently. Teen pregnancy will have a negative effect on the education of the teenager because it will force
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Reminder: These notes are meant to supplement‚ not replace the laboratory manual. SN1 Reaction Notes Background and Application Substitution Nucleophilic First Order (SN1) reactions are one of the most common type of organic reactions. SN1 reactions can be used to make a wide variety of new compounds. In this experiment‚ t-amyl alcohol will be converted by a SN1 mechanism to 2-chloro-2-methylbutane. Safety Precautions Concentrated Hydrochloric Acid is 12M. It will cause visible destruction
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Kathleen Lopp Ms. Owens Biology February 8‚ 2011 The Seven Stages of Grief Grief is the body’s natural response to a loss. The loss could be felt for the death of a loved one‚ loss of a friendship‚ loss of a spouse‚ someone or something that is considered dear to you or possibly a fatal injury that could lead to death. Almost everyone suffers some type of emotional distress caused by their loss. Grief is specified as a feeling of intense sorrow or sadness due to severe injury of a loved
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STUDY GUIDE: Preeclampsia 1. Define the following: Preeclampsia: Eclampsia: 1. In the chart below‚ contrast the physiologic changes of a normal pregnancy with those of a patient with pregnancy induced hypertension. Physiologic Change Normal Pregnancy Pregnancy Induced Hypertension Peripheral Vascular Resistance Role of Thromboxane Role of Prostacyclin Maternal Vasodialtion Plasma Volume Nitric oxide Renal perfusion Glomerular
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practical with our decisions because it may affect the rest of our lives. Having RH Bill is having a choice. Choice on protecting the health of every women undergoing pregnancy and choice on having a good family plan of each Filipino family that will give them a better life. It doesn’t mean that I don’t believe in God. I also believe in the reaction of the church. But we‚ Filipinos‚ need to open our mind on what’s happening in the present. First‚ I’ve chosen this topic because I am one of the many people
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Lab #5: Grignard Reaction – Synthesis of Triphenylmethanol John Kang Chem 152L Performed: 7/20/04 Date submitted: ________________ Lab Partners: Sang Lee‚ Vicky Lai TA: John Stanko Abstract: This experiment explored the synthesis of triphenylmethanol through the use of Grignard reagents. The percent yield of the product was 10% on a relatively humid day. The melting point was calculate to be 127.2oC with a literature value of 162oC. An IR spectrum of the product was taken and used
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Chemical Reaction Lab Well #1 CuCl2 + Al (shot) - Bubbling - Turning reddish-maroon - 33oC Well #2 CuCl2 + Al (foil) - Bubbling‚ but less than well #1 - Turning black - 28oC Well #3 CuCl2 + Zn - Turned black then red - No bubbling - 29oC Well #4 CuCl2 + NH4OH - Cloudy - No bubbling - 26oC Well #5 CuCl2 + NaCO3 - Not mixing with CuCl2 - Heterogeneous - 25oC Well #6 CuCl2 + AgNO3 - Cloudy - Top layer is white -29oC 1. The more pronounced reaction was the aluminum
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Observations: Part I: Reaction between iron and oxygen Appearance of steel wool after 20 minutes From (relatively) shiny metal strips to not-so-shiny strips that are stained with dark‚ reddish-brown stuff. Part II: Decomposition of hydrogen peroxide Appearance of potato and hydrogen peroxide combination: Lots of white‚ foamy bubbles around the potato slices. Day 2 Observations: Part III: Reaction between zinc and acetic acid Appearance of penny in vinegar after
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