Bio 211 Final

Front 1

what is the most likely role of a cell that contains an extensive smooth ER?

Back 1

It synthesizes large amounts of lipids

Front 2

What is the site of synthesis of proteins or export (secretion from the cell)?

Back 2

Ribosomes that attach to the Endoplasmic Reticulum

Front 3

Which of the following is not a characteristic that chloroplasts and mitochondia share?

Back 3

They are both present in al eukaryotes

Front 4

Which of the following represents a major difference between prokartotic cells and eukaryotic cells?

Back 4

Euk. cells tend to have much more extensive inner membrane systems and lager number of intracelluar organelles than do prokaryotes

Front 5

You have a distant cousin who is always tired. He is most likely to have an enzyme deficit or defect associated with what intracellular organelle?

Back 5

Mitochondria

Front 6

What is the function of the nuclear pore complex?

Back 6

a) it regulates movement of material across the nuclear envelope

Front 7

Ostyeocytes are bone cells. Collagen fibers and calcium salts are founnd in abundance between and among the osteocytes. The collagena and calcium salts are ______

Back 7

b) part of the extracellular matrix

Front 8

All of the following can be proteins found in the extracellular matrix of animal cells except______

Back 8

c) actin

Front 9

Streptococcus mutans is a common oral bacterium that forms dental plaque. What component of S. mutants is responsible for the formation of the plaque?

Back 9

c) extracellular matrix materials slime layer of the organism

Front 10

In the photosynthesis lab, blowing into the indicator dye turned the color of the blue indicator yellow because of the generation of ____

Back 10

b) acic conditions in the solution

Front 11

What electron carriers function in the Kreb Cycle

Back 11

B) both NAD+ a and FAD

Front 12

Plasmodesmata are cell-cell junctions that can be found between ______

Back 12

b) plant cells

Front 13

hormones function as _______

Back 13

c) signal molecules

Front 14

A g-protein receptor with GTP bound to it ______

Back 14

a) is in its active state

Front 15

The ATP molecule has a great deal of energy in its ______

Back 15

c) C-H bonds of the ribose sugar

Front 16

The electron transport chain is a series of redox reactions

Back 16

TRUE

Front 17

The energy of ET serves to move (transolocate) protons to the outer mitochondrial compartment. How does this help the mitochondrion to produce energy?

Back 17

b) the translocation of protons set up the electrochemical gradient that drive ATP synthesis in the mitochondria

Front 18

The chemiosmotic hypothesis is an important key to understanidng general metabolism because it explains how ATP is synthesizde by a proton motive force

Back 18

TRUE

Front 19

The right order of the physical locations for the glycolysis/fermentation/Kreb Cyle/ETC are:

Back 19

d) cyto/cyto/mito/mito

Front 20

ATP is:

Back 20

short-term, energy-storage
the cell's principle comund for energy tranasfer
molecule all living cells rely on to do work

d)ALL THE ABOVE

Front 21

The anaerobic breakdown of glucose is known as:

Back 21

d) Fermentation

Front 22

The main function of cell respiration is to produce:

Back 22

c) ATP

Front 23

Which of the following is common to both fermentation and cellular respiration

Back 23

d) glycolysis

Front 24

In human cells (muscle cells) the fermentaion process produces:

Back 24

b) lactic acid

Front 25

*The proteins of the ETC active in the light-dependent reactions______

Back 25

a) are membrane proteins present in the thylakoid

Front 26

*Besides proteins, theylakoid membranes must contain a large number of _______ molecules in the reaction centers in order to harvest light

Back 26

c) pigment

Front 27

*In autumn, the leaves of deciduous treeschange colors. This is because the chlorophyll is degraded and _______

Back 27

a) The carotenoids and other pigments are still present in the leaves

Front 28

*The LDR of plants function to make organic molecules using CO2 as a carbon source. What is the eletcron source that helps reduce CO2 to sugars and other organic molecules?

Back 28

b) NADPH

Front 29

*How are the LDR and LIR of photosynthesis related?

Back 29

b) The products of LDR are used in LIR

Front 30

*Stomata, openings in the leaf are important to photosynthesis for_______

Back 30

a) Entry of CO2 that is used in the Calvin Cycle

Front 31

Which of the following statemnets concerning chloroplast is false?

Back 31

a) They are unrelated to plastids

Front 32

A parent cell divides to form two genetically identical daughter cells in the process of mitosis. For mitosis to take place ______

Back 32

b) The parent cell must replicate its entire fenome prior to mitosis

Front 33

Metaphase occurs prior to the splitting of centromeres. It is characterized by______

Back 33

a) aligning of the chromosomes on the equator

Front 34

Nerve cells lose their ability to undergo mitosis. Instead. they are permently stuck in _____

Back 34

a) G0

Front 35

What happens when MPF is introduced into immature frog oocytes that are arrested in G2?

Back 35

c) The cells enter mitosis

Front 36

If a cell has accumulated DNA damage, it is unlikely to _______

Back 36

a) Pass the G2 Checkpoint

Front 37

Which of these sequences correctly describes the cell cycle?

Back 37

d) S/G2/P/M/A/T

Front 38

Sister chromatids form in G1 of the cell cycle

Back 38

b) False

Front 39

DNA synthesis takes place in

Back 39

a) S-phase

Front 40

The longest period of a cell's life cycle is

Back 40

d) Interphase

Front 41

The function of checkpoints in the cell cycle is

Back 41

to regulate progression from one phase to another phase of the cell cycle

Front 42

The kinetochorse is a protein structure where the sister chromatids are attached to the spindle fibers

Back 42

a) true

Front 43

How does a theory differ from hypoth

Back 43

b) hypoth is specific and theory general

Front 44

*Which statemnet about sponatneous generation is false

Back 44

c) occurs everytime a new species evolves from prexisting species

Front 45

*community is defined as a group of individuals of same species living in same area at the same time (T/F)

Back 45

b) False

Front 46

*which of the following is mismatched

Back 46

c) archeabacteria and multicellular

Front 47

*how many electrons in a triple covalent bond

Back 47

c) 6

Front 48

*when are atoms most stable

Back 48

a) when are the electron orbitals in the valence shells are filled

Front 49

Difference between a polar covalent bond and an ionic bond is that electrons are shared unequally in a PC bond but completely transfered (not shared) in ionic bond (T/F)

Back 49

a) True

Front 50

*Atomic number of 110

Back 50

d) 110 protons

Front 51

*Which of the following is not true about water

Back 51

b) solid water is denser than liquid water

Front 52

* Which statement is incorrect

Back 52

b) placebo effect takes actual drug and show signs of improvement

Front 53

Urinary tract infections causes urine pH to be alkaline (T/F)

Back 53

a) True

Front 54

*Four elements that make 95%of all matter found in organisms, which of the following is not one of these?

Back 54

c) calcium

Front 55

Which is not a role that proteins play in orgnisms

Back 55

d) store genetic information

Front 56

*Which one of the following is not a component of each monomer used to make proteins

Back 56

c) a phosphorous atom

Front 57

*A peptide bond is

Back 57

c) stable planar covalent bond

Front 58

The sequence of amino acid in a protein chain whn the polymirization of a protein is complete, but the protein is still completely linear is called _____ structure?

Back 58

a) primary

Front 59

Which statement is true aout enzymes?

Back 59

d)They perform enzymatic activities- lowering activation energy

Front 60

which of the following would be an example of cofactor

Back 60

non cabon hemi group in hemoglobin molecule

Front 61

allosteric inhibition occurs when the active site of an enzyme is directly blocked by the competitive inhibitor, which leads to the inhibition of the binding of substrate to the enzyme

Back 61

FALSE

Front 62

nucleic acids are polymers made up of which of the following monomers?

Back 62

nucleotides

Front 63

what is the difference between a ribonucleotide and a deoxyribonucleotide?

Back 63

hydroxylgroup