surface area to volume ratio is a fundamental of biology. Its affects a variety of things, from the maximum size of a cell, to the shape of an organism, to how internal transport systems are arranged. The surface of a cell (membrane) is the site of exchange between its interior and external environment. This surface has to allow enough exchange to support what is inside of the cell. It is vital to know that as an object increases its volume increases. Therefore the surface area to volume ratio of a smaller
going to investigate the rate of diffusion of Hydrochloric Acid into Gelatine. To do this I will use the same concentration and amount acid with the gelatine being cut into different sizes. The rate of diffusion is dependant on the surface/volume ratio to how quick the acid is able to diffuse throughout the whole of the gelatine. Equipment ========= § Hydrochloric Acid § Gelatine § Tile § Test tube § Rubber Bung § Scalpel § Ruler § Stop Clock § Goggles §
it easy to compress a gas. Which gives low mass to volume ratio. Particles must be in continual motion. These particles are very fast (usually about 500 meters per second). The molecules in a gaseous state have enough kinetic energy to be essentially independent of each other. Pressure is a main factor in turbo chargers. Pressure is the force exerted on a surface divided by the area of the surface (force per unit area). Decreasing the volume increases the pressure. The average speed of the molecules
Heat Loss Investigation Aim To investigate how variations in surface area and volume ratios in organisms lead to variations in heat loss and retention. Introduction Large animals have the ability to retain heat more easily than smaller animals because they have a larger surface area to volume ratio. This is the what I am trying to prove in the experiment. There are examples of this in nature. In winter the robin fluffs its wings up in order to retain more heat. When it does this
surface-to-volume ratio than larger cells and therefore can "feed" all areas of the cell in less time. What is "surface-to-volume ratio," and how does it affect cell size? The surface-to-volume ratio is a mathematical relationship between the volume of an object and the amount of surface area it has. This ratio often plays an important role in biological structures. Think of a cell as a sphere: The surface area of a sphere can be calculated by 4ð r2 where r is the radius of the sphere. Volume of a sphere
How does surface area to volume ratio affect the rate of diffusion? As the gelatin cube sizes were cut into smaller pieces, the surface area to volume ratio increases. Surface area to volume ration is very important in living organisms, since all the nutrients and oxygen need to diffuse through the cell membrane into the cells. The surface area to volume ratio affects the rate in which the salt diffused through the solution by how the salt diffused out of the gelatin and into the water this relates
The uropod at the rear of the Woodlouse is used for the uptake of water and this is achieved when they are pressed against moist surfaces5. Woodlice cannot retain water for long periods of time and because they have a large surface area to volume ratio they loose water quickly by diffusion6. Their exoskeleton is not waterproof which means that they will also loose water through this. Fig 1. Dorsal View of Porcellio scaber [IMAGE] The ventral view of the anatomy of Woodlice (fig
cools down in cups with different materials. Prediction: The factors which will affect the amount of heat loss are: § Material of the cup – Conduction § Colour – Radiation § Surface area of cup § Amount of water (surface area:volume ratio) § If the cup has a lid or not – Convection and Evaporation § Room temperature § Thickness of the cup § Temperature of the liquid § Air movements – Convection/Evaporation I will be investigating the material of the cup. I experimented
Demonstrating How Surface Area and Volume Affect Heat Loss in Animals Planning ======== Aim: To investigate how surface area and volume of an animal affects the amount of heat lost. Planning a simple procedure =========================== One standard test tube, one boiling test tube, and one centrifuge test tube will be filled with water at 40°C. A thermometer will be placed in each tube to measure the decrease in temperature of the water. This will be timed for 300 seconds
will then have a set of results. Equipment [IMAGE] Prediction I predict that the big can with the larger surface area will keep the water the warmest. I think this because large animals' surface area to volume ratio causes very little heat loss where as small animals ratio is better for heat loss. It is also known that larger things such as animals cool down slower. Therefore this shows why I predict that the large can will keep the water the warmest.
this activity is to determine the size of the square cut out which makes the volume of the box as large as possible for any given rectangular sheet of card. 1. For any sized square sheet of card, investigate the size of the cut out square which makes an open box of the largest volume. 2. For any sized rectangular sheet of card, investigate the size of the cut out square which makes an open box of the largest volume. Question 1 ---------- I began work on question 1, which was to investigate
area to volume ratio of an object affect the rate of heat loss from the object Hypothesis: As the ratio of surface area to volume of an object decreases the rate of heat loss from the object will also decrease. Objects with the same surface area to volume ratios loose heat at the same rate so long as there are not other variables involved. Background Knowledge: The surface area to volume ratio of an object is determined by dividing the surface area by the volume and putting it into a ratio of one
INTRODUCTION Some Types of measurements include length, volume, mass and temperature. Length is the measurement or extent of something from end to end. Volume is the amount of space that a substance or object occupies, or that is enclosed within a container. Mass, is the quantity of matter that a body contains, as measured by its acceleration under a given force or by the force exerted on it by a gravitational force. Temperature, is the degree or intensity of a het present in a substance or object
Investigating the Volume of an Open Box The aim of this coursework is to investigate the volume of an open box constructed by one piece of rectangular card that has all four corners having had squares cut out of them. Firstly I will be studying the volume whilst changing the side of one length of the cut out square and the size of the original rectangle card. After I have investigated this relationship I will try to find out the formula for finding the cut size to get the largest volume for any specified
sheet of card. Identical squares are cut off the four corners of the card, as shown below. [IMAGE] The card is then folded along the dotted lines to make the box. The main aim is to determine the size of the square cut which makes the volume of the box as large as possible for any given rectangular sheet of card, but first I am going to experiment with a square to make it easier for me to investigate rectangles. I am going to begin by investigating a square with a side length of
8 Density is the ratio between mass and volume, the unit of density for solid or liquid in the metric system is measured in g/ml or g/cm^3. Mass is the quantity of matter in a particular object, the unit for measuring mass of an object is represented in kilogram (kg) or gram (g). Volume is the certain amount of space occupied by an object, the unit for measuring volume of a particular object is either represented as millimeter (ml) or cubic centimeter (cm^3). The purpose of this laboratory investigation
so I must keep the mass the same. By using the above methods, the amount will be kept the same o Volume of acid - although the amount of hydrochloric acid needed to neutralise the marble chips differs according to the strength of the acid, the volume must be kept the same so as to make it a fair test. In order that the acid should not run out on the weakest concentration of acid, the volume will be 200cm3, which is enough to accommodate all of the concentrations. o The apparatus that I
What is the effect on volume when water and isopropyl alcohol are mixed together? Project Design Plan When two substances are added together, their mass is Conserved. This is according to the Law of Conservation of Mass. Does the same apply to volume? Mark W. Meszaros, PhD claims that when isopropyl alcohol and water are mixed, the mass of the two is added, yet the volume decreases (Meszaros, M W., PhD, n.d.). Problem Statement: When adding two substances together, one would hypothesize the addition
The Factors Affecting the Rate of Reaction of Indigestions Tablets With Acid Planning, To start the investigation I thought about what affected rates of reaction. I managed to come up with 4 ideas: 1 Surface area 2 Temperature 3 Concentration 4 Mixing of the substances (stirring) I decided to do 2 different preliminary experiment so I could chose the best variable to investigate and see what equipment was necessary to provide us with an accurate set of data. Our first Preliminary
Pressure The three scientists Boyle, Amontons and Charles investigated the relationship between gas, volume and temperature. Boyle discovered that for a fixed mass of gas at constant temperature, the pressure is inversely proportional to its volume. So in equation form this is: pV = constant if T is constant Amontons discovered that for a fixed mass of gas at constant volume, the pressure is proportional to the Kelvin temperature. So in equation form this is: p µ T if V is constant