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Talking Parrot – Review of “Alex and Me” by Irene Pepperberg

This relatively short recount of Irene Pepperberg’s experiment with Alex is a very intriguing book. The truth behind it and the idea of a thirty year experiment between man and…

To Determine the Effects of Temperature on the Permeability of the Beetroot Cell Membrane

Research Question: To investigate how different temperatures affect the beetroot pigment and finding out the absorbance and transmittance % using a visible spectrophotometer. Background Information: Beetroots contain betalains which are…

Genetically Modified Crops and Health

In today’s society, the goal of many scientists is to try to figure out as much as possible about genetically modified organisms and their influence on humans, animals and plants….

Overview of Cells & Energy (Revision)

Robert Hooke(1665): Published first book on cells. Discovered cells when looking at cork under a microscope. Discovered cell structure of plants. Anton von Leewenhoek (1650-1700):Dutch. First observed protists. With a…

Experiment to Test Touch Sensing in Boys and Girls

Question: Are males as effective as males in the recognition of Styrofoam letters? Purpose: The purpose of this experiment was to understand the behavioral differences between genders in 5 and…

Modifying a Simple Hydrolysis of Sucrose Experiment to Measure Michaelis Menten

How can the Michaelis Menten constant for the dextrase content of yeast be calculated with simple experiment on hydrolysis of sucrose? Introduction: In anaerobic conditions yeast cells break down sugar…

Is There Such Thing as Too Much Mammography?

Mammography is a type of x-ray used specifically for breast cancer screening and diagnosis. It is the most reliable radiographic technique for early detection of breast cancer[1]. A mammogram is…

Assessing Water Quality in a Stream by Chemical Means

1. Introduction The aim of this experiment was to investigate water quality by chemical tests with which the momentary characteristics of the water could be assessed very precisely. The temperature,…

To Investigate the Effect of Strenuous Physical Activities On the Heart Rate

To investigate the effect of strenuous physical activities such as badminton and bodybuilding on the heart rate of subject compared to stationary position. Research Question “What effect does different physical…

Investigating the Effects of Plant Density on Growth Rate

1. Design – Part A 1.1 Defining the Problem Focus / Research Question How does plant density affect the growth of radish seeds? Hypothesis If the population of plants in…

Female Fertility Problems

Fertility refers to the natural capability of giving life. In more scientific terms, fertilization is the fusion of the male (sperm) and female (ova/egg) gametes in order to produce a…

The Effect of Detergent Concentration on Membrane Permeability of Cells

Introduction: There is often a rule in cooking that says; do not rip off the skin of the beetroot or wash the tail of the beetroot when you cook*1, unless…

Ecology Observation Report

Figure 1: Location of Tree “X” 1. The tree that I’ve chosen to observe from March to June is located between the playground and the Main Hall, to the right…

Colors of Light (Wavelengths) Absorbed By Green Plants

Table 1: The absorbance of light for mustard and spinach in different wavelength. Qualitative data: Mustard: 1. The green mustard was put into the boiling water and then it become…

Rate of Activity of the Enzyme Catalase in Hydrogen Peroxide Experiment

In this study of increasing target temperature of enzyme catalase coated onto paper filter disks reacting through 3% hydrogen peroxide solution in culture tubes, there was an increase in amount…

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