Biology Essays

1. Aim To investigate the amount of protein present in different types of milk by measuring the mass of protein in each types of milk. 2. Introduction Casein is a protein which is found in milk. This is a conjugated protein that has prosthetic groups that is called phosphoric acid, …

Discussion: Biodiversity is the number of different varieties of species living in one ecosystem. Hence if there are many kinds of different species living in an ecosystem, the biodiversity is higher. Higher biodiversity increases the survival rate of the species. This is because, if one particular species is contaminated, extinguished …

Using statistics to determine the correlation of plant population between the rugby and football fields at school. Introduction: The Simpson Diversity Index (SDI) is used to analyze the biodiversity of two local communities. In this investigation, students were required to use the SDI to compare the biodiversity of the rugby …

INTRODUCTION Plant contains photosynthetic materials which are responsible in the photosynthesis processes. One of the materials is chloroplast. Chloroplast is actually an organelle found in plant cells and many other eukaryotic organisms. The chloroplast, in green plant, contains many pigments; a few of them are chlorophyll a and chlorophyll b, …

While the food is in the stomach, it is mixed with acid, and enzymes, so chemical digestion takes place. During this, the peristaltic movements on the muscles in the wall of the stomach will mix the food until it is almost a fluid while is called chyme. After some, time …

The human embryo is a collection of clusters of non-specific cells, which then develop into the tissues of the adult human. In particular immature, non-specific neuroblasts must be differentiated into the highly specialised cells of the nervous system, each with a unique structure, function and synaptic interactions (Whatson 2004). The …

Aim of the Experiment: To analyse the effects of light intensity on photosynthesis via the Hill reaction. Research Question: How does light intensity affect the rate of photosynthesis more precisely the rate of reaction in photosystem II, at the primary acceptor location? Hypothesis: In the light dependant reactions, an artificial …

1. All living things are made up of cells 2. Cells are the smallest unit of life 3. All cells arise from pre-existing cells 1. All living things are made up of cells which have an outer boundary, nucleus, cytoplasm and organelles. However there are many exceptions to this rule. …

ATP, or Adenosine triphosphate, is an organic chemical compound that has a strong chemical bond which acts as an energy fuel, it isn’t a long term energy store as the bond is quite unstable so when ATP is made it is used almost immediately, when this bond is broken it …

a) Draw a diagram to show the structure of the human brain. b) Outline the function of the following regions of the human brain: medulla oblongata, cerebellum, hypothalamus, pituitary gland, cerebral hemisphere. Medulla oblongata: The medulla oblongata contains the neural centres of the autonomic nervous system and therefore controls automatic …