Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology Major > exam 2 key > Flashcards

exam 2 key Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

ch 7

the electron transport chain:

A

is a series of redox reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

ch 7

the terminal electron acceptor during respiration is:

A

O2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

ch 7

what is the net gain from a molecule of glucose during the krebs cycle?

A

2 ATP, 6 NADH, 2 FADH2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

ch 7

the final product(s) of pyruvate oxidation is (are)

A

acetyl CoA, CO2, NADH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

ch 7

glucose processing has four components. Which component takes place in the cytosol?

A

glycolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

ch 7

in chemiosmosis, ATP is produced as hydrogen ions (protons) pass through:

A

ATP synthase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

ch 7

how many ATP are produced during glycolysis and pyruvate oxidation?

A

4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

ch 7

which of the following statements about NAD+ is true?

A

NAD+ is reduced to NADH during glycolysis , pyruvate oxidation, and the citric acid cycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

ch 7

which process in eukaryotic cells will proceed normally whether oxygen is present or absent?

A

glycolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

ch 8

the process of splitting water to release hydrogens and electrons occurs during the __ process.

A

light dependent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

ch 8

carbon dioxide enters the leaf through __.

A

stomata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

ch 8

the final electron acceptor(s) associated with photosystem I is/are:

A

NADP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

ch 8

all of the following compounds are required for photosynthesis except:

A

O2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

ch 8
besides proteins, thylakoid membranes must contain a large number of __ molecules in the reaction centers in order to harvest light energy.

A

pigment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

ch 8
the electrons of photosystem II are excited and transferred to electron carriers. from which molecule or structure do the photosystem II replacement electrons come?

A

water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

ch 8

the colors of light in the visible range (from shortest wavelength to longest) is __.

A

VIBGYOR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

ch 8

chlorophylls absorb most light in what colors of the visible range?

A

violet and red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

ch 8

what event accompanies energy absorption by chlorophyll (or other pigment molecules of the antenna complex)?

A

an electron is excited

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

ch 9

which type of cell signaling does not rely on the diffusion of a chemical signal molecule?

A

juxtacrine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

ch 9

communication between neurons is an indication of which type of cell signaling?

A

paracrine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

ch 9

the high variability of the types of G-protien coupled receptors allows for:

A

different types of cells to respond to different types of signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

ch 9

an increased heart rate caused by the release of adrenaline from the adrenal glands is an example of ________.

A

endocrine signaling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

ch 9

which statement most accurately explains how some signals are amplified?

A

second messengers are produced

24
Q

ch 9
a common GTP-binding molecule that links the receipt of an extracellular signal to the production of an intracellular one is __.

A

a G protein

25
Q

ch 9

how is phosphorylation important in a signal transduction cascade?

A

phosphorylation will change the direction of target proteins, which triggers another response in the cell

26
Q

ch 9

what does it mean to say a signal is transduced?

A

the physical form of the signal changes from one form to another

27
Q

ch 10

plasmodesmata are cell-cell junctions that can be found between ___.

A

plant cells

28
Q

ch 10

the shape of cells is determined and maintained by structural protein networks in the cytoplasm called the __.

A

cytoskeleton

29
Q

ch 10

the cytoskeleton of animal cells includes:

A

microtubules, microfilaments, and intermediate filaments

30
Q 
ch 10
\_\_ is (are) the most common form ECM protein fiber(s), is (are) more elastic than cellulose and forms a flexible extracellular layer.
A

collagen

31
Q

ch 10
the plasma membrane’s phospholipid bilayer has numerous proteins. which of the following is a protein NOT associated w the plasma membrane?

A

transintegral proteins

32
Q

ch 10

the __ are a group of cell adhesion proteins found in plasma membranes that bind only to other __ of the same type.

A

cadherins

33
Q

ch 10

Myosin motor proteins use ATP energy to:

A

carry vesicles along a microfilament within a cell in a minus to plus direction

34
Q

ch 10

cells require which of the following to form cilia or flagella?

A

tubulin

35
Q

ch 11

select the mitotic stage or interphase shown by the cells below.

A

metaphase

36
Q

ch 11
a cell with 10 chromosomes undergoes mitosis and cell division. how many daughter cells are produces and what number of chromosomes do they have?

A

2 daughter cells; 10 chromosomes each

37
Q

ch 11
mitosis is the process of chromosome separation. cytoplasm is divided between the two daughter cells in a process known as __.

A

cytokinesis

38
Q

ch 11

which sequence of the cell cycle is common to eukaryotes?

A

G1 to 5 to G2 to M to cytokinesis

39
Q

ch 11

homologous chromosomes __.

A

carry information for the same traits

40
Q

ch 11

the egg of a fruit fly has 4 chromosomes. how many chromosomes are in a somatic cell of a fruit fly?

A

8

41
Q

ch 11

crossing over occurs during

A

prophase I

42
Q

ch 11

synapsis is a critical event in the progression of meiosis. what is the key outcome of a completed chromosomal synapsis?

A

side by side alignment of homologous chromosomes

43
Q

ch 11
the microtubule-organizing center found in animal cells is an identifiable structure present during all phases of the cell cycle. specifically, it is known as the __.

A

centrosome

44
Q

ch 12

when we say that DNA replication is semiconservative, we mean that:

A

when DNA is replicated, each new double helix contains one parental strand and one newly synthesized daughter strand

45
Q

ch 12

what attaches DNA nucleotides to an RNA primer?

A

DNA polymerase

46
Q

ch 12

what relieves the stress on the replication fork caused by unwinding?

A

topoisomerase II

47
Q

ch 12

what proofreads the growing DNA strands and replaces mismatched nucleotides?

A

DNA polymerase

48
Q

ch 12

what enzyme would be the first to bind to the DNA sequences at the origin of replication?

A

DNA helicase

49
Q

ch 12

which of the following places the PCR cycle in the correct sequence?

A

denaturation, healing, extension

50
Q

ch 12

each round of PCR ___.

A

doubles the amount of DNA

51
Q

why are there several structurally different pigments in the reaction center of photosystems?

A

this setup enables the plant to absorb energy from sunlight from a variety of wavelengths

52
Q

which is not true about mitosis?

A

homologous chromosomes synapse in prophase

53
Q

a human cell has 46 total or 23 pairs of chromosomes. following mitosis, the daughter cells would each have a total of __ chromosomes. after meiosis I, the two daughter cells would have __ chromosomes, and after meiosis II __ chromosomes.

A

46, 23, 23

54
Q

Dynein motor proteins use ATP energy to:

A

carry vesicles along a microtubule within a cell in a plus to minus direction

55
Q

how does the Sanger method identify sequence?

A

lacks the 3’ free hydroxyl group for the incoming nucleotides

Biology Major (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions