Scientific Method & Chemisty Of Life

Question 1

Observation

Answer 1

Asking questions based on the use of one or more of the 5 senses to perceive the natural world

Question 2

Hypothesis

Answer 2

A testable explanation of your observations

Question 3

Experiment

Answer 3

Testing the hypothesis under controlled conditions

Question 4

Inference

Answer 4

Logical explanation based on prior knowledge

Question 5

Controlled experiment

Answer 5

Experiment in which all variable are kept unchanged except one

Question 6

Manipulated variable

Answer 6

The variable that is changed between the control group and the experimental group

Question 7

Independent variable

Answer 7

Manipulated variable

Question 8

Responding variable

Answer 8

The factor that is observed and responds to the manipulated variable (what we count or measure)

Question 9

Dependent variable

Answer 9

Responding variable

Question 10

Control group

Answer 10

The group that is being tested under normal conditions

Question 11

Experimental group

Answer 11

The group that is being tested under new or experimental conditions

Question 12

Analyze data

Answer 12

Analyzing data to see it supports or refutes the hypothesis

Question 13

Quantitative data

Answer 13

Counting or measuring. Expressed as numbers

Question 14

Qualitative data

Answer 14

Descriptive, characteristics that cannot be counted or measured

Question 15

Conclusion

Answer 15

Determining the validity of a hypothesis based on the data in the results that you collected during the experiment

Question 16

Scientific theory

Answer 16

A well tested explanation that unifies a broad range of observations

Question 17

Scientific law

Answer 17

What scientists expect to happen every time under certain conditions but does not explain why

Question 18

Curiosity

Answer 18

Scientists ask questions about what they observe, results of studies lead to new questions

Question 19

Skepticism

Answer 19

Scientists question existing ideas and hypothesis, they do not believe ideas without evidence

Question 20

Open mindedness

Answer 20

Scientists must be able to accept new ideas that they may not agree with

Question 21

Creativity

Answer 21

Scientists need to think creatively to design experiments that provide good data

Question 22

Peer review

Answer 22

Scientists publish their findings to be reviewed by other scientists who look for mistakes or other problems

Question 23

Bias

Answer 23

A certain preference or point of view that is personal rather than scientific

Question 24

Biology

Answer 24

The study of life

Question 25

Cell

Answer 25

Basic unit of life

Question 26

Unicellular

Answer 26

Organisms that are made up of one cell

Question 27

Multicellular

Answer 27

Organisms that are made up of many cells

Question 28

Sexual reproduction

Answer 28

Cells from two different parents combine to form the first cell of the new organism

Question 29

Asexual reproduction

Answer 29

A new organism has a single parent

Question 30

Cell division

Answer 30

Single celled organism divides in half

Question 31

Budding

Answer 31

A portion of the parent organism splits off the form new organism

Question 32

Deoxyribonucleic acid

Answer 32

The directions for inheritance are copied and carried by DNA

Question 33

Differentiation

Answer 33

Different cells of multicellular organisms perform different functions

Question 34

Metabolism

Answer 34

The chemical reactions involved in building up or breaking down materials to carry out life processes

Question 35

Photosynthesis

Answer 35

NRG(light) + H2O + CO2 = O2 + CHO

Question 36

Cellular respiration

Answer 36

CHO + O2 = CO2 + H2O + NRG(atp)

Question 37

Stimulus

Answer 37

A signal to which living things react

Question 38

Homeostasis

Answer 38

When conditions inside an organism are kept within certain limits

Question 39

Evolution

Answer 39

The ability of a species to change over time to better adapt to their environment

Question 40

Organic chemistry

Answer 40

The study of all compounds that contain bonds between carbon atoms

Question 41

Monomer

Answer 41

Small repeating units that fit together to form a polymer

Question 42

Polymer

Answer 42

Large molecules that are formed by joining together many monomers

Question 43

Carbohydrates

Answer 43

Made up of carbon (C), Hydrogen (H), and oxygen (O) atoms

Question 44

Monosaccharides

Answer 44

Single sugar molecule (glucose, galactose, fructose)

Question 45

Polysaccharides

Answer 45

Monosaccharides combine to form polysaccharides (starch, glycogen, cellulose)

Question 46

Lipids

Answer 46

Made mostly from C and H. Not soluble in water. Fats, oils, waxes, steroids

Question 47

Nucleic acid

Answer 47

Store and transmit genetic info. Made up of H O C N P

Question 48

Nucleotide

Answer 48

Monomer of a nucleic acid made up of sugar group, Phosphate group, and nitrogen base

Question 49

Deoxyribonucleic acid

Answer 49

(DNA) double strand of nucleotides sugar group-deoxyribose

Question 50

Ribonucleic acid

Answer 50

(RNA) single strand of nucleotides sugar group-ribose

Question 51

Proteins

Answer 51

Regulate cell processes, control the rate of reaction, form bones and muscles, transport substances into or out of cells, help fight disease and more. Made of H O N C

Question 52

Amino acid

Answer 52

Monomer of a protein (building blocks of proteins)

Question 53

Science

Answer 53

How we learn about the natural world and the body of knowledge we have collected about the natural world

Question 54

Characteristics of living things

Answer 54

Made of cells, reproduce, based on a genetic code, grow and develop, use materials and NRG (energy), respond to their environment, maintain stable internal environment, change over time as a group