cell stucture

Descrição

main focuses The structure and function of membranes (introduction) • Phylogeny (introduction) • The divisions of life • Differences between plant, animal and microbial cells • What is an organelle • Endosymbiont theory
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Quiz por michelle_simms_w, atualizado more than 1 year ago
michelle_simms_w
Criado por michelle_simms_w mais de 10 anos atrás
67
1

Resumo de Recurso

Questão 1

Questão
What is phylogeny?
Responda
  • Desent with modification
  • Evolutionary relationships among organisms
  • Classification of organisms and determining evolutionary relationships

Questão 2

Questão
Which domain of life does mitochondria belong to?
Responda
  • Eukayra
  • Archeaea
  • Bacteria

Questão 3

Questão
Which domain is most closely related to archaea
Responda
  • viruses
  • bacteria
  • eukarya

Questão 4

Questão
How many chromosomes do Prokaryotes have?
Responda
  • 1
  • mulitiple

Questão 5

Questão
Which of the followings are common features in cells of all domains
Responda
  • Cell membrane ,ribosome ,chromosome/sand cytosol (semi-fluid substance)
  • Cytoplasm, centromeres, mitochondria and nucleus
  • endoplasmic renticuluim, plasma membrane, Golgi apparatus and lysosomes
  • nuclear enveolope, vesicles, vacuoles, chloropyll

Questão 6

Questão
Eukaryotes.....
Responda
  • Have DNA enclosed in a membrane bound nucleus
  • Are small and less complex
  • Are large and more complex
  • Have no organelles
  • Are green
  • Have organelles

Questão 7

Questão
DNA floats around in prokaryotes
Responda
  • True
  • False

Questão 8

Questão
How many lipid bilayers do cell membranes have
Responda
  • 1
  • 2
  • 3
  • 4

Questão 9

Questão
Which image best describes the cell membrane
Responda

Questão 10

Questão
O2 and CO2 pass freely through the membrane of a cell because they are substances which are...
Responda
  • polar
  • non polar
  • bi polar
  • Sligthly negatively charged
  • Slightly positively charged

Questão 11

Questão
Cholesterol is increases the fluidity of the phosplipid bilayer
Responda
  • True
  • False

Questão 12

Questão
Which domain rRNA selection composed of 5s,16s,and 23s
Responda
  • prokaryotes
  • eukaryotes

Questão 13

Questão
Eukaryotes have ribosomes free just in the cytoplasm
Responda
  • True
  • False

Questão 14

Questão
Eukaryotic DNA is linear and found within the nucleus
Responda
  • True
  • False

Questão 15

Questão
What is the name of the complex of proteins and chromosomes
Responda
  • chromatin
  • centrosome
  • chromatosin

Questão 16

Questão
What is the name of the protein which holds the shape of the nucleus
Responda
  • nuclear lamina
  • nuclear envelope
  • chromatin

Questão 17

Questão
Where is RNA synthesized?
Responda
  • Nuclear pores
  • Nucleous
  • Chromatin

Questão 18

Questão
Bacterial DNA is found in 2 locations
Responda
  • True
  • False

Questão 19

Questão
Plasmids...
Responda
  • are straight
  • Contain genetic information
  • Are larger that the bacterial chromosome
  • Are smaller that the bacterial chromosome
  • Can exchange DNA between bacterial cells beneficial for antibiotic resistance

Questão 20

Questão
Which systems and organelles are not found in animal cells that are found in plant cells
Responda
  • ribosomes
  • chloroplasts
  • mitochondrion
  • microvilli
  • central vacuole and tonoplast
  • cell wall
  • centrsome
  • plasmodesmata

Questão 21

Questão
The cytoplasm doesn't contain organelles
Responda
  • True
  • False

Questão 22

Questão
microfilaments are the largest fibers in the cytoskeleton
Responda
  • True
  • False

Questão 23

Questão
What are the functions for the cytoskeleton
Responda
  • Anchor the organelles
  • uses ATP to move vesicles around the cells
  • make the cell bendy
  • link to one another to strenghten cell stucture
  • Regulate biochemical activites

Questão 24

Questão
Mirco tubules are hollow
Responda
  • True
  • False

Questão 25

Questão
what is the function of the microtubules
Responda
  • shaping the cell
  • moving the whole cell
  • Guiding movement of organelles
  • regulate cell temperature
  • Separating chromosomes during cell division
  • control the beating of cilia and flagella

Questão 26

Questão
The centrosome is made up of two centrioles
Responda
  • True
  • False

Questão 27

Questão
The centrosome is a
Responda
  • microtubule-organizing center
  • microtubule- diassembling center
  • microtubule-destuction center

Questão 28

Questão
Microfilaments are solid rods comprising a twisted double chain of
Responda
  • chtin subunits
  • actin subunits

Questão 29

Questão
the 3D cortex of the microfiliaments to change the cells shape
Responda
  • True
  • False

Questão 30

Questão
bundles of the microfilament make up the core ore microvilli in the intestinal cells
Responda
  • True
  • False

Questão 31

Questão
In muscle cells...
Responda
  • Hundreds of actin filaments are arranged parallel to one another
  • Thousands of actin filaments are arranged parallel to one another
  • Millions of actin filaments are arranged parallel to one another

Questão 32

Questão
Myosin and ...... help in the movement of cells and are very important in muscles
Responda
  • Actin
  • Chitin
  • Phosphourous

Questão 33

Questão
What are the functions of the intermediate filaments
Responda
  • Maintence of cell shape
  • cytoplasmic streaming
  • formation of nuclear lamina
  • anchorage of nucleus and other organelles
  • muscle contaction

Questão 34

Questão
What the difference between the smooth and rough endoplasmic reticulum
Responda
  • rough has ribsomes are located on the outside of the organelle
  • they are made up of different components

Questão 35

Questão
smooth ER secretes glycoprotiens
Responda
  • True
  • False

Questão 36

Questão
What are the functions of the smooth ER
Responda
  • secrete glycoprotiens, distributes transport vesicles- proteins surrounded by a membrane
  • synthesizes lipids, metabolizes carbohydrates, deoxifies drugs and poisons, stores calcium ions

Questão 37

Questão
which organelles make up the endomembrane sytstem
Responda
  • Nuclear envelope • Plasma membrane • Endoplasmic reticulum • Golgi apparatus • Lysosomes • Vacuoles
  • cell membrane - ribosome - chromosome/s - cytosol (semi-fluid substance)

Questão 38

Questão
The Golgi apparatus manufactures.....
Responda
  • micromolecules
  • phospolipids
  • macromolecules
  • nucleic aids

Questão 39

Questão
what is the name of the process where Vesicles leave golgi and may fuse with plasma membrane to secrete contents
Responda
  • exocytosis
  • eutytropic
  • sterotropic
  • cytokensis

Questão 40

Questão
lysomes are sacs of ...... enzymes which can digest macromolecules (proteins, fats, polysaccharides, nucleic acids
Responda
  • sulpuric
  • hydrolytic
  • nitrite

Questão 41

Questão
what is the name given when a cell engulfs another
Responda
  • autophagy
  • phagocytosis
  • cytokenisis

Questão 42

Questão
autophagy is the process where lysomes
Responda
  • Use enzymes to recycle the cell’s own organelles and macromolecules
  • fuse with the food vacuole and digests the molecules
  • Manufactures certain macromolecules

Questão 43

Questão
The vacuole contains, oxygen, carbon and chlorophyll
Responda
  • True
  • False

Questão 44

Questão
both eukaryotes and prokaryotes have mitochondria
Responda
  • True
  • False

Questão 45

Questão
Mitochondria is where...
Responda
  • starch is converted into glucose
  • celluar respiration through the generation of ATP
  • nutrients passes through the nuclear envelope

Questão 46

Questão
What is the name for the double membrane: a smooth outer membrane and an inner membrane folded
Responda
  • Cristae
  • peroxisome
  • medula

Questão 47

Questão
mitochondria have their own ribosomes and DNA
Responda
  • True
  • False

Questão 48

Questão
Chlorophyll contain chloroplast
Responda
  • True
  • False

Questão 49

Questão
Most cells synthesize and secrete materials that are external to the plasma membrane
Responda
  • True
  • False

Questão 50

Questão
The cell walls of Fungi are made of
Responda
  • Chitin
  • cellulose
  • starch

Questão 51

Questão
which of the following are is NOT in the extra cellular matrix of animal cells
Responda
  • collegen
  • actin
  • proteoglycans
  • fibronectin

Questão 52

Questão
he extracellular matrix bind to the receptor proteins in the plasma membrane called integrins
Responda
  • True
  • False

Questão 53

Questão
Which 2 of the following are NOT functions of the ECM
Responda
  • Support
  • Flexibility
  • Adhesion
  • Movement
  • fixed postioning
  • regulation

Questão 54

Questão
Which of the following is a plant cell junction
Responda
  • Gap junctions
  • Plasmodesmata:
  • •Desmosomes
  • Tight junctions

Questão 55

Questão
prokaryotes have organelles
Responda
  • True
  • False

Questão 56

Questão
which of the following are found inside a microbial cells
Responda
  • Cytoplams
  • Centrsomes
  • Flagella
  • Pili
  • Mitochondria
  • Capsule/slime layer
  • Cytoplasmic membrane and Cell wall

Questão 57

Questão
Magnetosomes are magnetic enclusions in cells allow
Responda
  • microogramism move around magnetic lines
  • help the cell wall stay in place
  • remove unwanted information from the cell

Questão 58

Questão
Gas vesicles sink in prokaryotic cells
Responda
  • True
  • False

Questão 59

Questão
Gas vesicle are bouyant as it allows the microograsims to move up and down o the cytoplasm allowing for optimum light absorption. As some microorganisms photosynthesis
Responda
  • True
  • False

Questão 60

Questão
Prokaryotes produce spores for reporduction
Responda
  • True
  • False

Questão 61

Questão
Which of the following isnt a factor for the dispersal of spore in hardy environment soil
Responda
  • poluten
  • rainfall increases or decreases
  • high acidity
  • temperature drop
  • nurtrient level falls

Questão 62

Questão
The composition of peptidoglycan in bacteria is..
Responda
  • G+ve cells have ~ 70 G-ve cells have ~ 30
  • G+ve cells have ~ 50 G-ve cells have ~50
  • G+ve cells have ~90 G-ve cells have ~ 10

Questão 63

Questão
antibiotic drugs target the cell walls of bacteria, which one is easiest to destoy
Responda
  • Gram +
  • Gram -

Questão 64

Questão
Capsule/slime layers.....
Responda
  • to stick cells together and as a food reserve
  • to protect the cell from desiccation, and from chemicals
  • increase the number of cells being produced
  • stop the cells sticking together and dry out the cell

Questão 65

Questão
the movement of flagella is based on
Responda
  • proton motor force
  • ATP release
  • metabolism of glucose

Questão 66

Questão
to benefit cellular exchange bacterial will have
Responda
  • pili
  • fimbriae

Questão 67

Questão
what do Archaea and eukarya have in common but not bacteria
Responda
  • flagella
  • histomes
  • gas vesicle
  • endospores
  • sensitivity antibiotics

Questão 68

Questão
Acheae are the highest tolerating domain
Responda
  • True
  • False

Questão 69

Questão
Endosymbiont theory is the idea that Mitochondria and chloroplasts took up residence in Eukarya eons ago - First a non-photosynthetic prokaryote formed an endosymbiont relationship with a host - Subsequently, a photosynthetic prokaryote was engulfed Result = a single organism
Responda
  • True
  • False

Questão 70

Questão
what would you NOT consider to define life?
Responda
  • order/organisation
  • reproduction
  • response to environment
  • energy utilisation and production (metabolism)
  • homeostasis
  • evolution
  • respiration
  • being complety reliant on from others

Questão 71

Questão
what is a virus
Responda
  • piece of DNA or RNA covered in a protein coat
  • a nucleus with a cell wall and mitochondria

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