Exam Review :/

Front 1

scientist ovter use experiments to test their _________, which are possible explanations for observations

Back 1

Hypotheses

Front 2

_________ is defined as the amount of space something occupies

Back 2

volume

Front 3

a life scientist would use a _________ to magnify a living specimen.

Back 3

compound light microscope

Front 4

a set of related hypotheses that are supported by evidence may become accepted as a ________.

Back 4

theory

Front 5

in which of the following areas of study might you find a life scientist at work

Back 5

how wasps could be used to control fire ant population

Front 6

when researchers use the scientific method, they should

Back 6

repeat or switch the order

Front 7

a scientist who wants to study the possible side effects of a new medicine would probably

Back 7

include a control group that received no medicne

Front 8

what tool would a life scientist use to obtain a detailed image of the nerves that branch off a person's spinal cord

Back 8

an MRI

Front 9

the cell in the cell membrane, _________ molecules form two layers.

Back 9

phospholipid

Front 10

when a planarian worm is cut in half, each half develops into a whole worm. This is a example of ___________.

Back 10

asexual

Front 11

____________ are sometimes called the blueprints of life.

Back 11

nucleic acids

Front 12

________ is the passing of traits from one generation to the next.

Back 12

heredity

Front 13

___________ refers to all of the chemical activities that an organism's cells perform

Back 13

metabolism

Front 14

_____ is a complex carbohydrate manufactured by plants

Back 14

starch

Front 15

when a duch dives under water and its inner eyelids cover its eyes what is waters act

Back 15

a stimulus

Front 16

the molecule provides energy for cellular processes is

Back 16

ATP

Front 17

the subunits of proteins are

Back 17

nucleotides

Front 18

cells do not use _____ for energy

Back 18

oils

Front 19

_________ is the random movement of particles from an area of high concentration to an area of low concentration

Back 19

diffusion

Front 20

_________ is the random movement of particles from an area of high concentration to an area of low concentration

Back 20

diffusion

Front 21

plant produce their own food by the process of__________.

Back 21

photosynthesis

Front 22

food mole cules that are too large to pass easily through the cell membrane cancan enter the cell by ________

Back 22

endocytosis

Front 23

human body cells have 23 pairs of _______ ________.

Back 23

homologous chromosomes

Front 24

the process of cell division in a bacterial cell is called ________.

Back 24

binaryfission

Front 25

food particles move through proteins in the cell membrane with out using energy in a process called.

Back 25

passive transport

Front 26

when wilted celery is soaked in water, it becomes crisp again due to

Back 26

osmosis

Front 27

fermentation in animal cells produces _______ and ______

Back 27

lactic acid and ATP

Front 28

oxygen is used to break down food molecules and release energy in a process called

Back 28

cellular respiration

Front 29

which of the following is a product of photosynthesis

Back 29

glucose

Front 30

which of the following is NOT used to make glucose in photosynthesis

Back 30

O2

Front 31

a ________ plant produces offspring with the same traits as the parent.

Back 31

true-breeding

Front 32

the physical expression of an organism's genes is its ________.

Back 32

phenotype

Front 33

each parent donates a set of instructions, known as _________, to its offspring.

Back 33

genes

Front 34

when Mendel performed genetic crosses, the traits that seemed to vanish were ____________.

Back 34

recessive traits

Front 35

egg and sperm are ____ ____.

Back 35

sex cells

Front 36

these may be dominant or recessive

Back 36

alleles

Front 37

if you cross two rabbits that have the genotype Bb, how many possible genotypes can be found in the offspring?

Back 37

three

Front 38

in a purple flower with the genotype Pp (P=purple; p=white) self-pollinates, the ratio of purple offspring to white offspring would be

Back 38

two purple: two white

Front 39

probability is

Back 39

the mathematical chance that an event will occur

Front 40

genes are composed of sub units known as ________

Back 40

ribosomes

Front 41

genes are composed of sub units known as ________

Back 41

ribosomes

Front 42

chargaff's rule state that the amount of ________ in DNA is always equal to the amount of guanine.

Back 42

cytosine

Front 43

_________ allows scientists to transfer genes from one organism to another

Back 43

Genetic engineering

Front 44

a _________ is a tool for tracing a genetic trait through generations of a family.

Back 44

pedigree

Front 45

examples of chemical _________ include asbestos and chemicals found in cigarette

Back 45

mutagens

Front 46

the code for a given amino acid consist of ______ bases

Back 46

three

Front 47

what materials make up each nucleotide in a DNA molecule

Back 47

sugar, phosphate and a base

Front 48

most genetic disorders, such as sickle cell anemia re due to a

Back 48

recessive gene

Front 49

the complementary strand to the DNA sequence TAGTCA would be

Back 49

ATGAGT