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ASD > Science 2 Key Words > Flashcards

Science 2 Key Words Flashcards

1
Q

Energy

A

Something has energy if it has the ability to make something happen when that energy is transferred

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2
Q

Respiration

A

The process of living things in which oxygen is used to release the energy in food

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3
Q

Glucose

A

A simple sugar molecule

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4
Q

Aerobic respiration

A

Respiration that involves oxygen

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5
Q

Reactant

A

The starting substance in a chemical reaction

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6
Q

Photosynthesis

A

The process by which energy from sunlight, carbon dioxide and water are used by green plants to produce glucose and oxygen

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7
Q

Product

A

A substance formed in a chemical reaction

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8
Q

Germination

A

Beginning to grow into a plant from a seed

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9
Q

Mitochondria

A

The structures in a cell that release energy

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10
Q

Membrane

A

The layer around the cell that controls substances entering and leaving the cell

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11
Q

Enzymes

A

A substance that enables a chemical process in a living organism

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12
Q

Digestive system

A

A group of organs that together enable the digestion of food

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13
Q

Breathing system

A

Takes oxygen into the body and passes carbon dioxide out

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14
Q

Circulatory system

A

The heart and blood vessels that transport essentials substances around the body in blood

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15
Q

Phloem

A

A tissue made up of long tubes that transport glucose made in leaves of a plant to other parts

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16
Q

Stomata

A

Tiny pores on the underneath surface of a leaf through which gases can move in and out

17
Q

Anaerobic respiration

A

Respiration without using oxygen

18
Q

Glycogen

A

A storage molecule formed from a chain of glucose units and often stored in the liver

19
Q

Yeast

A

A unicellular (single celled) fungus

20
Q

Fossil fuel

A

Cool, natural gas and oil that were formed from the compressed remains of plants and other organisms that died millions of years ago

21
Q

Independent variable

A

A variable in an experiment that affects the outcome and is changed

22
Q

Dependent variable

A

The variable that is measured in an investigation

23
Q

Catalyst

A

A substance that speeds up a chemical reaction

ASD (3 decks)

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