energy

Question 1

energy

Answer 1

something has energy it has the ability to make something happen when that energy is transfered

Question 2

respiration

Answer 2

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

Question 3

glucose

Answer 3

a simple sugar molecule

Question 4

aerobic respiration

Answer 4

respiration that involves oxygen

Question 5

reactant

Answer 5

a starting substance in a chemical reaction

Question 6

photosynthesis

Answer 6

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

Question 7

product

Answer 7

a substance formed in a chemical reaction

Question 8

germinating

Answer 8

beginning to grow into a plant from a seed

Question 9

mitochondria

Answer 9

the structure in a cell that produces energy

Question 10

cell membrane

Answer 10

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

Question 11

enzymes

Answer 11

a substance that enable a chemical process in a living organism

Question 12

digestive system

Answer 12

a group of organs working together to enable the digestion of food

Question 13

breathing system

Answer 13

takes oxygen into the body and carbon dioxide out

Question 14

circulatory system

Answer 14

the heart and blood vessels transport the essential substances around the body in blood.

Question 15

phloem

Answer 15

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

Question 16

stomata

Answer 16

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

Question 17

anaerobic respiration

Answer 17

respiration without using oxygen

Question 18

lactic acid

Answer 18

a substance produces in anaerobic respiration which builds during vigorous exercise and causes an aching or burning feeling in the muscles.

Question 19

oxygen debt

Answer 19

the oxygen needed to break down lactic acid produced as a result of vigorous exercise

Question 20

glycogen

Answer 20

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

Question 21

fermentation

Answer 21

type or anaerobic respiration that produces ethanol and carbon dioxide

Question 22

microbe

Answer 22

tiny organisms like bacteria and viruses that can only be seen with a microscope

Question 23

yeast

Answer 23

a unicellular fungus

Question 24

brewing

Answer 24

cereal grains are soaked in water and fermented yeast

Question 25

fossil fuel

Answer 25

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

Question 26

independent variable

Answer 26

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

Question 27

dependent variable

Answer 27

the variable that is measured in an investigation

Question 28

catalyst

Answer 28

substance that speeds up a chemical reaction