OBSERVING PLASMOLYSIS IN ONION CELLS (_ALLIUM CEPA_) I. INTRODUCTION Plasmolysis is the process in plant cells in which the cytoplasm is separated from the cell wall as a result of water loss through osmosis. Osmosis is a type of passive transport involving movement of water molecules across a partially permeable membrane. 1. RESEARCH QUESTION How does 15% NaCl solution affect the appearance of onion cells? 2. HYPOTHESIS If onion cells are submerged in solutions of NaCl of different concentrations
Free Cell membrane Cell wall Cell
DNA testing on crime scene evidence is considered conclusive‚ but it wasn’t always that way. About 30 years ago‚ this tool was not considered accurate enough to make a difference in identifying or clearing a suspect. DNA profiling is a process of identifying a specific DNA pattern. The history dates back to the 1900s at the University of Leicester‚ and it’s used to solve many cases and identify the suspects of many different crimes. DNA profiling is also used to identify victims of disaster and
Premium DNA Genetics Gene
Commentary: Macbeth‚ Act II‚ Scene I “Is this a dagger which I see before me…” Macbeth is one of the most famous plays written by William Shakespeare. The play tells the story of Macbeth‚ Thane of Glamis whose dark ambition will lead him to murder the king and take his crown. This passage is Macbeth’s first soliloquy extracted from the Scene I of Act II‚ also known as the “dagger scene”. This is the scene that precedes Duncan’s murder. Many themes are recurring throughout the play and this
Premium Perception Macbeth Reality
Statement of intention This creative writing piece is in the form of an additional scene to Arthur Millers The Crucible. This scene takes place two months after the end of the Salem witch trials. It is a conversation between Mr Hale and Elizabeth Proctor. It explores and evaluates the long term devastation caused by greed and self-interest. This piece displays how dramatic the effects of greed and selfishness can be. Mr Hale reveals his own inner turmoil since the trials‚ and how his own pride and
Premium Salem witch trials The Crucible Witchcraft
Andrew Niccol. In it‚ Andrew Niccol explores the themes of genetic modification and its possible future use in human engineering. The opening scenes are stylishly designed and subtly introduce the themes and main character of the film. As mentioned‚ genetics plays a very large role in the film Gattaca’ and is introduced in several ways in the opening scenes. The very first images the viewer sees after starting the film is a quote juxtaposed onto a black background‚ followed by another quote. These
Premium Andrew Niccol Introduction Protagonist
A Busy Street Scene In a large capital city like Kuala Lumpur‚ there are several busy streets‚ but the busiest of all is Jalan Tuanku Abdul Rahman. From early morning‚ traffic starts building up. Crowds of pedestrians‚ shoppers and others can be seen walking along the pavements outside the shops or trying to cross the road. The noise of cars and taxis hooting‚ or of scooters‚ flying past is deafening. Anyone who stops by to watch the scene is amazed at the number of vehicles zooming past or crawling
Premium Kuala Lumpur Traffic English-language films
purposes with the investigator’s initials‚ often at the tip or base of the bullet. The sides of the bullet should not be marked. Critical Thinking Questions If you found a firearm at a crime scene‚ what steps would you take in order to transport the weapon to the lab? If i found a firearm at a crime scene the steps i would take in order to transport the weapon to the lab would be to first ensure that the firearm will not discharge accidentally on the way to the lab. This often means that the gun
Free Firearm Gun Critical thinking
Observing the role of homeostasis in the body after exercise Biology (T): Functioning Organisms Biology Practical Report 0383210 Mrs Woinarski Due 14th November 2012 Introduction: Homeostasis plays a vital role in the maintenance of a normal environment in which bodily systems are able to function most efficiently. The importance of homeostasis can be seen in blood pressure and pulse rate‚ as measurements which are
Premium Blood pressure
creates an effect where Tommy is covered in darkness along with red light; representing his violent nature. At the same time‚ we hear the song "Atlantis" by Donovan‚ which is reminiscent of the hippy culture which was at a high during the 60’s when the scene occurred. The message of the song talks about peace‚ love and creating a utopia where everyone
Premium
A Scene at the Railway Station Railway Station is that place from where trains go and come. India has the largest network of railway stations spread through the length and breadth of the country. Most of the big towns and cities are linked with each other and quite a few villages that fall in the way of the rail tracks are connected for movement by rail. A train is the most convenient and affordable mode of travel for the majority of people of the country that is India. When we have to go hundreds
Premium Train station Train Public transport