Metabolic Rate Machine

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Metabolic Rate Machine

A way to measure Metabolic Rate through a hand-made device.

Marta Baena Fuentes & Ema Garberis

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Today YOU are GOING TO investigate abOUT THE METABOLIC RATE.NOW, YOU SHOULD START TO THINK OF IDEAS TO CREATE A METABOLIC RATE MACHINE!

Hypothesis

Blue light wavelength will be the most efficient one in plant metabolic processing.

The metabolic rate machine

Outer box

CO2 SENSOR

CO2 LEVEL (ppm)

Plant (Berberis specie)

Lamp

Inner container

Method

Build up the "new enviroment"

Process we went through, in order to achieve the last result of our METABOLIC RATE MACHINE.

The outer box and inner container

Cultivate the Plant

In this case: Berberis specie

Set up the CO2 Sensor

To detect CO2 levels in the new enviroment

Plant Exposure to different colour lights

White, Red and Blue

Take measurments of each trial after 20 min!

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Our Table of Results!

In the table it can be seen the corresponding metabolic rate measured with each light wavelength.

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CO2 Absorbed

Met. Rt =

Time (sec)

We love data

Graph

The metabolic rate can be represented into a graph which shows:

• Blue Light has the highest metabolic rate.

• Followed by the red and last the white.

• The quantities are shown small as we made a conversion from ppm to moles.

3. Blue light enhace plant respiration and photosynthesis

1. Our Initial Hypothesis was correct!

Blue light was the wavelength most efficient for metabolic processes.

Blue wavelengths are optimal to be absorbed by plant pigments.

4. The Sun is still the best option!

2.Answer our Research Question

It is a free, natural, renewable light resource for plants.

Light Wavelengths DO affect the metabolism rate of a plant.

Our Reflection

We did not only improved in the scientific area, but we:

• Improve Collective Work.

• Prepare our internal assessments for the IB programme.

• Value teachers, scientific coordinator and lab technician´s time and advise.

Thank you for your attention!

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Got an idea?

Use this space to add awesome interactivity. Include text, images, videos, tables, PDFs... even interactive questions! Premium tip: Get information on how your audience interacts with your creation:

• Visit the Analytics settings;
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