Post Test Bio 1 Practire

Front 1

Evolution occurring in burst of rapid change, followed by periods of relative stability is called ____________.

Back 1

punctuated equilibrium

Front 2

The role of messenger RNA is to _______________.

Back 2

To be a copy of a portion of DNA

Front 3

When two species evolve to be morphological less similar, it is called _______

Back 3

Character Displacement

Front 4

A population is defined as a group of the same species occupying a single habitat. (T/F)

Back 4

True

Front 5

Cell cytoplasm is primarily composed of __

Back 5

Water

Front 6

Which is the correct description of the logistic growth curve in population growth?

Back 6

S Curve

Front 7

Which type of chemical bond involves the sharing of electrons in the outer shells of atoms?

Back 7

Covalent Bonds

Front 8

Where would I go to watch active protein synthesis?

Back 8

The Rough ER

Front 9

Meiosis occurs in support of sexual reproduction. (T/F)

Back 9

True

Front 10

Which type of population age-structure diagram is associated with high juvenile mortality and high reproductive rates?

Back 10

Pyramidal

Front 11

Which is true regarding saturated fats?

Back 11

They lack double bonded carbon atoms in their fatty acids
They have a higher melting point
They are associated with animal fat
All these answers are associated with saturated fats

Front 12

Bacteria perform a form of cell division called ____________.

Back 12

Binary Fission

Front 13

Which of the following molecules includes the organic molecules known as RNA and DNA

Back 13

Nucleic Acids

Front 14

Which organ system produces the developmental hormones?

Back 14

Endocrine System

Front 15

Which of the following is an example of post-zygotic reproductive isolation?

Back 15

Hybrid Inviability

Front 16

Which of the following is an example of an electron carrier (transport) molecule?

Back 16

NADH

Front 17

The majority of homeostatic processes in the human body work on the principle of positive-feedback control.

Back 17

False, Negative Feedback

Front 18

Which organelle is a principle site of cell product packaging and storage?

Back 18

Golgi Complex

Front 19

Which of the following features sets humans apart from all other primates?

Back 19

Bipedalism

Front 20

f one parent is heterozygous for a gene and the other parent is homozygous recessive for the same gene, what is the chance that they have a child showing the recessive form of the gene in their phenotype?

Back 20

50%

Front 21

Which type of survival curve is associated with K-selected species?

Back 21

Type 1

Front 22

Which of the following events in cellular respiration produces the most ATP?

Back 22

Electron Transport Chain

Front 23

If a cell has a lower concentration of solutes inside it’s fluid than its surrounding environment, the cell is in ________

Back 23

Hypotonic

Front 24

The physical location of a gene on a chromosome is called the __________________.

Back 24

Locus

Front 25

In the evolutionary sense, a measure of an individual organism's relative fitness is a measure of its _____________

Back 25

Reproductive Output

Front 26

Which of the following does not occur during prophase?

Back 26

Formation of the nuclear membrane
The condensation of the chromosomes
The initial formation of the spindle fibers
None of the above (all occur during prophase)

Front 27

Niche partitioning reduces competition between species.

Back 27

True

Front 28

Which level of protein structure involves back folding of the helix onto itself?

Back 28

Tertiary

Front 29

Which of the following is most likely an acid?

Back 29

CaCl2
SiO2
CaCO2
H2SO4

Front 30

Which type of organic molecule is associated with ester bonds?

Back 30

Ester Bonds

Front 31

are found in plant cells but not animal cells.

Back 31

Central Vaculoes

Front 32

Succession following habitat disturbance is called ________ succession.

Back 32

Secondary Succesion

Front 33

Which of the following events in meiosis does not specifically result in shuffling of a species' DNA?

Back 33

Crossing over
Independent assortment
Formation of the tetrads
Chromosomal reduction

Front 34

Which of the following would be considered density independent population regulation?

Back 34

Competition
Predation
Disease
Flood!

Front 35

The Light Independent step in photosynthesis is also known as the Krebs Cycle.

Back 35

False

Front 36

Which form of speciation is the result of an some kind of geographic barrier?

Back 36

Allopatric

Front 37

DNA fingerprinting utilizes _______________

Back 37

electrophoresis

Front 38

he pocket-like structure in the gastrula is called the _____________.

Back 38

Archenteron

Front 39

Photosynthesis is not an example of an oxidation-reduction reaction.

Back 39

False

Front 40

___________ facilitate the movement of large molecules between neighboring cells.

Back 40

Gap junctions

Front 41

A mutation involving the flipping of a portion of the chromosome is called a(n) ______________.

Back 41

Inversion

Front 42

Approximately what percent of the sunlight striking the earth is actually captured by the biosphere on any given day?

Back 42

1%