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Bio 101 Glendale college > exam 1 2017 > Flashcards

exam 1 2017 Flashcards

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1
Q

what atom is hydrogen covalently bondend to when it is part of a hydrogen bond

A

D

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2
Q

according to the figure in chapter 1 which of the following groups of organisms shared a common ancestor most recently

A

Animals and plants

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3
Q 
which of the following allows communication between animal cells 
Atight junction 
B desmosome
C gap junction 
DCentrioles 
E peroxisome
A

C Gap junction

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4
Q

which of the following polysaccharides contain branching

A glycogen 
B starch 
C cellulose 
D glycogen starch and cellulose 
Eglycogen and starch
A

Glycogen and starch

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5
Q

a cross section of this organelle contains a “9+2” pattern of microtubules. what is it ?

A

eukaryotic flagella or cilia

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6
Q

where would you find a lot of collagen

A

Extracellular matrix of animal cell

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7
Q

channel proteins that specifically allow the passage of water across a membrane are known as

A

Aquaporins

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8
Q

who proposed natural selection as the mechanism of evolution

A

Darwin

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9
Q

which organelle does not contain membrane as part of its structure?

A

Ribosomes

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10
Q

which of the following statements about water is not true

A

it realeses a large amout of heat when changing from liquid to vapor

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11
Q

facilitated diffusion and active transport both

A

require a specific protein in the membrane

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12
Q

what is the name of the special bond that can form between two cysteins

A

Disulfide bridge

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13
Q

the cell walls of plants contain

A

Cellulose

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14
Q

what kind of molecule i

A

x

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15
Q

a molecule that accepts protons when in a solution is a

A

Base

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16
Q

hydrogen bonds are important in

A

DNA water cellulose and proteins

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17
Q

polymers are converted to monomers by

A

hydrolysis

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18
Q

which of the following are part of the cell theory

A

all organisms are composed of one or more cells and all cells come from preexisting cells

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19
Q

how many covalent bonds dose phosphorus usally form in biologically important molecules

A

5

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20
Q

what is the function of ribosomes

A

Protein synthesis

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21
Q

which of the following can be used as an energy source for active transport

A

ATB and an ion gradient

22
Q

a cell that is put into a hypertonic solution. what happens

A

water will leave the cell

23
Q

white blood cell is engulfing a foreign cell what is the name of this process

A

Ednocytosis

24
Q

which of the following statements about ATP is not true?
A. ATP is a nucleotide
B. ATP is used in eukaryotic cells but not prokaryotic cells
C. ATP is an energy carrier
D. AP has 3 phosphate groups
E. most of the ATP in Eukaryotic cells is made in the mitochondria

A

B. ATP is used in eukaryotic cells but not prokaryotic cells

25
Q 
which of the following is not a monosaccharide 
A ribose 
B fructose 
C glycogen
D peptidoglycan
E maltose
A

Maltose

26
Q

which of the following is a polysaccharide used for energy storage in animals

A Chitin 
B Triglyceride
C Glycogen
D Peptidoglycan 
E Maltose
A

Glycogen

27
Q 
prokaryotic cells contain \_\_\_\_\_
A mitcochondria
B ribosomes 
C lysosomes 
D cytoskeleton 
e none
A

B Ribosomes

28
Q

which of the following organelles have their own DNA and Ribosomes

A choroplast 
B Mitochondria 
C centriols 
D A and B 
E none
A

D chloroplast and mitochondria

29
Q

which of the following statements is not true regarding glycogen starch and cellulose

A

All three are easily digested by most animals

30
Q

molecules which dissolve in water are called

A

hydrophilic

31
Q

why are most cells very small

A

small cells have a large surface area to volume ratio

32
Q

which of the following would not be found in a plant cell

A Mitochondria 
B cytoskeleton
C golgi apparatus 
D Vacuole 
E endoplasmic reticulum
A

Endoplasmic reticulum

33
Q

which of the following contains enzymes that can hydrolyze many kinds of macromolecules

A golgi apparatus 
B lysosomes 
C mitochondria 
D Ribosomes 
E endoplasmic reticulum
A

Lysosomes

34
Q

many eukaryotic cells make proteins that are exported from the cell where are these proteins synthesized

A

rough endoplasmic reticulum

35
Q

which organelle sorts modifies and packages newly synthesized proteins before being sent out to their final destinations

A

Golgi Apparatus

36
Q

which of the following regular the entry and exit of materials from the cell

A

plasma membrane

37
Q

what scientist demonstrated that flies are not spontaneously generated by rotting meat

A

Redi

38
Q

which of the following has the greatest electro negativity

carbon 
phosphorus 
oxygen
hydrogen 
nitrogen
A

oxygen

39
Q

which of the following have prokaryotic cell structure

A bacteria 
B archaea 
C eukarya
D both A and B 
E both B and C
A

D both Bacteria and Archaea

40
Q

a scientist isolate chloroplast and studies them in a testable what kind of experiment is being done

A

in vitro

41
Q

hydrophobic interactions

A

can hold two non polar molecules together

42
Q

which of the following would increase the fluidity of a membrane
A. increasing the temp
B increasing the amount of unsaturated fatty acid
C using shorter fatty acids
D a and C
E a b and C

A

E a b and c

43
Q

ribozymes are

A

Rna catalyst

44
Q

lipid syntesis in eukaryotic cells takes place in the

A

smooth endoplasmic reticulum

45
Q

which of the following can move in and out of cells by diffusion

A

O2 carbon dioxide and lipids

46
Q

which of the following best describes a phospholipid

A

glycerol joined to 2 fatty acids and 1 phosphate containing group

47
Q

denaturation of a protein changes the primary structure

A

false

48
Q 
all lipids are\_\_\_\_
A triglycerides 
B polar 
C hydrophilic 
D polymers of fatty acids 
E more soluble in nonpolar solvents than in water
A

more soluble in non polar solvents than in water

49
Q

49 according to the theory of evolution

A

all organisms share a common ancestor

50
Q

the organelles of cells can be separated from one another to study the this separation is called

A

cell fractionation

Bio 101 Glendale college (7 decks)

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