The three ways in which cellular respiration could be measured

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The three ways in which cellular respiration could be measured

This allows students to focus on the process and techniques of investigation and the subsequent reporting. However, in Year 12 students are often given freedom to choose a topic or research question from the work covered over the whole of the course.

These "Open Inquiry" EEIs may provide more ownership, engagement and deeper understanding for the students but do place a bigger demand on resources and laboratory management.

Energies To Avoid

However, many teachers have found strategies to manage this should they choose to opt for a Open EEIs. A Materials Requisition Form accompanies this document. My thanks to Biology teachers from Nanango for sharing this. Examples of Risk Assessment forms can be found in the tasks available on this page.

Photosynthesis - Wikipedia

A comprehensive form developed over several years by Urangan SHS can be found here: It is only an example and should not be assumed to necessarily meet the legal and safety obligations of any particular school or situation. The method of artificial variation: The method of concomitant variation: This is also called a "correlation method".

You can think that nature has manipulated the variables but it is still appropriate to class one as dependent and one as independent. For example, do young leaves have the same density and distribution of stomata as older leaves; or how does temperature IV in a natural environment affect stoma opening DV?

In this second case you do not need you to control the environmental temperature, but you do need to measure the DV at different temperatures. The difficulty with the second approach is the control of other potentially influential variables such as humidity - as you have to take what you get.

However, that does not preclude the variables in relationship being considered the IV and DV or being graphed as such.

One way to address the confounding variables eg humidity is to collect data on the other variable as well. You can run the statistics on each pair separately, but, for students who are not that "stats-savvy" then they could look for interactions between them at a visual level.

Although some micro-organisms are deliberately used to make foods such as yoghurt and cheese, other microbes 'spoil' food. Food, as well as meeting the nutritional requirements of humans, will also meet the nutritional needs of a vast range of micro-organisms. These microbes will multiply rapidly in food, given the appropriate conditions such as temperature, pH and moisture.

The flavour, aroma and texture will ultimately be affected. Those most affected by food poisoning are the elderly, the young and immune suppressed individuals. A petri dish culture of the yeastlike organism fungus Candida krusei, after 10 days growth on dextrose agar.

This species is known to be a food spoilage organism. Dichloran Rose Bengal Chloramphenicol Agar is a commercially specialist culture medium for viable yeasts and moulds in food products. It incorporates Rose Bengal, which both helps limit colony size and is selective against bacteria.

Effects of different anti microbials on bacterial growth Joseph Lister first introduced aseptic surgery in when he used a spray of carbolic acid phenol C6H5OH as a germicide. Since then the control of growth by antimicrobial compounds has grown into a multi-billion dollar industry. A good EEI is to assess the effect of a variety of antimicrobial disinfectants on bacterial growth.

Our labbies prepare the plates and order in E. Students then put a 'wash' of E. Small paper discs like out of a hole punch are sterilised and then soaked into different anti-microbials. The discs are placed onto the agar plates and then into the incubator for a couple of days.

If the anti bacterial is effective there is a clear ring around the disc where the E. Students have used the width of this ring to indicate effectiveness and to collect quantitative data.By studying the equation above, you will notice there are three ways cellular respiration could be measured.

One could measure the: • Consumption of O. 2 • Production of CO. 2 • Release of energy during cellular respiration. Using a CO. 2. and an O. 2. Gas Sensor, you will monitor the carbon dioxide produced by peas during cell respiration.

"Death": One Word Used in Several Ways The word death is used in at least three primary and numerous secondary ways. The context indicates the intended meaning in some instances, but it is not unusual for ambiguity or a shift in meanings to occur in the midst of a discussion.

The three ways in which cellular respiration could be measured

Obesity affects more than million people worldwide and contributes to type 2 diabetes, cardiovascular disorders, and cancer. 1 Obesity is the result of a positive energy balance, whereby. By studying the equation above, you will notice there are three ways cellular respiration could be measured.

One could measure the: 1. Consumption of O2 (How many moles of oxygen are consumed in cellular respiration?) 2.

Pearson - The Biology Place

Cetacea (/ s ɪ ˈ t eɪ ʃ ə /) is a widely distributed and diverse clade of aquatic mammals that today consists of whales, dolphins, and schwenkreis.comans are carnivorous and finned. Most species live in the sea, some in rivers. The name is derived from the Latin cetus "whale", itself from the Greek κῆτος kētos "huge fish"..

There are around 89 extant species, which are divided. Many of the suggestions below involve the use of animals. Various laws apply to the use of animals in schools particularly any "live non-human vertebrate, that is fish, amphibians, reptiles, birds and mammals, encompassing domestic animals, purpose-bred animals, livestock, wildlife, and also cephalopods such as octopus and squid".

The Story of Ozone (Medical Uses)