IQWST IC3 - Vocabulary

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Photosynthesis

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36 Terms
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Photosynthesis

process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and glucose

<p>process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and glucose</p>
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cellular respiration

Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen

<p>Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen</p>
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Carbon Dioxide (CO2)

odorless gas that is a product of cellular respiration and that plants absorb in the process of photosynthesis

<p>odorless gas that is a product of cellular respiration and that plants absorb in the process of photosynthesis</p>
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Oxygen (O2)

gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to body cells. Used in cellular respiration

<p>gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to body cells.  Used in cellular respiration</p>
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chemical reaction

the process by which one or more substances change to produce one or more different substances. molecules break apart or rearrange to form new molecules

<p>the process by which one or more substances change to produce one or more different substances. molecules break apart or rearrange to form new molecules</p>
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glucose

A simple sugar that is an important source of energy. Produced in photosynthesis. Used in cellular respiration

<p>A simple sugar that is an important source of energy. Produced in photosynthesis. Used in cellular respiration</p>
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Chloroplast

organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy. Where photosynthesis takes place

<p>organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy.  Where photosynthesis takes place</p>
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Stomata

Small openings on the underside of a leaf through which oxygen and carbon dioxide can move

<p>Small openings on the underside of a leaf through which oxygen and carbon dioxide can move</p>
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independent variable

The experimental factor that is manipulated; the variable whose effect is being studied.

<p>The experimental factor that is manipulated; the variable whose effect is being studied.</p>
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dependent variable

The outcome factor; the variable that may change in response to manipulations of the independent variable. variable we measure

<p>The outcome factor; the variable that may change in response to manipulations of the independent variable. variable we measure</p>
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experimental group

In an experiment, the group that is exposed to the treatment, that is, to one version of the independent variable.

<p>In an experiment, the group that is exposed to the treatment, that is, to one version of the independent variable.</p>
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control group

In an experiment, the group that is NOT exposed to the treatment; contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment.

<p>In an experiment, the group that is NOT exposed to the treatment; contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment.</p>
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sample size

The number of subjects used in an experiment or study. Generally, the larger the better.

<p>The number of subjects used in an experiment or study. Generally, the larger the better.</p>
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Reactant

a substance that takes part in and undergoes change during a reaction.

<p>a substance that takes part in and undergoes change during a reaction.</p>
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Product

A substance produced in a chemical reaction

<p>A substance produced in a chemical reaction</p>
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Carbohydrates

the starches and sugars present in foods; broken down to glucose to provide energy

<p>the starches and sugars present in foods; broken down to glucose to provide energy</p>
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Proteins

Nutrients the body uses to build and maintain its cells and tissues. built from amino acids

<p>Nutrients the body uses to build and maintain its cells and tissues.  built from amino acids</p>
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Fats

lipids that are solid at room temperature. animals store energy as fats

<p>lipids that are solid at room temperature. animals store energy as fats</p>
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Starch

soft, white, tasteless powder that is insoluble in cold water, alcohol, or other solvents. complex carbs - multiple subunits connected together

<p>soft, white, tasteless powder that is insoluble in cold water, alcohol, or other solvents.  complex carbs - multiple subunits connected together</p>
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Metabolism

the chemical changes that take place in the cell, make energy and materials that organisms need to grow and/or repair itself

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Energy

the ability to do work

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Food

molecules that provide our bodies with energy. Proteins, fats and carbohydrates

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Energy Conversion

The change of energy from one type to another

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Nutrients

A substance or ingredient that provides energy and promotes growth

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triglyceride

occurring naturally in animal and vegetable tissues; it consists of three individual fatty acids bound together in a single large molecule

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Amino Acid

Building blocks of proteins

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enzyme

produced by cells to start chemical reactions

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Chemical Indicator

A substance that gives a visible sign when something is present.

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Simple sugar

made up of a single sugar molecule, glucose, fructose or galactose

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Complex Carbohydrate

Made of sugar molecules strung together in longer chains

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digestion

The process of breaking down food to be used by the body

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Law of conservation of matter

Matter can neither be created or destroyed, but only rearranged in chemical reactions

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Cellular Respiration

Process by which organisms combine oxygen and food to create usable energy

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Mitochondria

Powerhouse of cell, site of ATP (energy) production

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exercise

a purposeful physical activity that maintains or improves physical fitness

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Calories

unit used to measure energy used by the body and the energy that food supplies

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