Science
2,223 Science Free Papers: 231 - 240
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Biology Case
Internal Assesment - Task 2C In this experiment I am investigating the relationship between surface area and the volume of a model cactus and to determine whether this relationship affects the loss of water. We used oasis blocks, an absorbant material used by florists as a substitute for a cactus,
Rating:Essay Length: 1,183 Words / 5 PagesSubmitted: December 2, 2014 -
Biology Case - Dna System
Conclusion The SOS response is a post replication DNA repair system that will allow DNA replication to find a way around lesions or miscalculations in the DNA. The SOS uses the RecA protein. This protein is stimulated by single-stranded DNA and is involved in the inactivation of the LexA repressor
Rating:Essay Length: 307 Words / 2 PagesSubmitted: March 12, 2012 -
Biology Core Practical Rate of Breathing
Investigating Breathing Aim To investigate tidal volume, vital capacity, rate of breathing, respiratory minute ventilation and oxygen consumption. Research (source 2) Before performing spirometry, the equipment used must be calibrated. This is achieved using either a 3-L syringe that is pumped through to check that the meter is reading
Rating:Essay Length: 865 Words / 4 PagesSubmitted: April 17, 2018 -
Biology Coursework
Revision * Condensation reaction – two molecules combine and produce a water molecule * Hydrolysis reaction – this is when water is added to a bond which causes it to break. * Monosaccharide is a basic monomer and can combine to form a disaccharide or a polysaccharide * Glucose joined
Rating:Essay Length: 2,743 Words / 11 PagesSubmitted: January 29, 2017 -
Biology Information
Information Exchange • Organisms are trying to send us the “go away” type of message • Example: poison arrow frog (Ecuador). They produce this coloration because they have skin that produces a toxin. And so if you were to eat a poison arrow frog and let's say you were a
Rating:Essay Length: 798 Words / 4 PagesSubmitted: May 26, 2014 -
Biology Photosynthesis
Plants and humans both need solar energy and they have different ways of getting it, but they also have very similar in their own way. Photosynthesis is a process that transfers solar energy or energy from the sun, into a chemical energy that provides nutrients to plants and animals all
Rating:Essay Length: 459 Words / 2 PagesSubmitted: January 15, 2013 -
Biology Unit 2 Notes
;Biology Unit 2 Notes Peptidoglycan- lots of peptido- positive gram stain’ little to no peptido- negative gram stain coxiella burnetii- causes Q-fever Toxoplasma Gondii- acquired through ingesting cysts in undercooked meat Can reside in cats Influenza- spread through repertory droplets from sneezing and coughing Single strand of RNA Fat and
Rating:Essay Length: 1,605 Words / 7 PagesSubmitted: May 23, 2016 -
Biology – Mutation and Its Consequences
A mutation involves changes in the base sequences of DNA; an example of this is when a gene is copied incorrectly. The change shifts to make a different amino acid which then codes for a different protein. One way a gene can mutate in via substitution which is when one
Rating:Essay Length: 481 Words / 2 PagesSubmitted: April 26, 2015 -
Biomass Gasifier for Rural and Agriculture Area of Pakistan
BIOMASS GASIFIER FOR RURAL AND AGRICULTURE AREA OF PAKISTAN ABSTRACT In modern day engineering, energy recovery, efficient energy generation is a challenging and big issue in the industry. Quality of life is directly related to consumption of energy. Each country developing or developed is looking for alternative fuels. Scientists and
Rating:Essay Length: 834 Words / 4 PagesSubmitted: October 11, 2016 -
Biomass of Plants
An experiment to determine the effect sugar has on the growth of grass while acting as a stimulus. Aim: The aim of this experiment was to determine the effect of sugar on grass growth. Introduction: This experiment shows the effect that sugary water has on grass seeds. Sugar was chosen
Rating:Essay Length: 1,001 Words / 5 PagesSubmitted: June 4, 2012