Questão 1
Questão
What is phylogeny?
Questão 2
Questão
Which domain of life does mitochondria belong to?
Responda
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Eukayra
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Archeaea
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Bacteria
Questão 3
Questão
Which domain is most closely related to archaea
Questão 4
Questão
How many chromosomes do Prokaryotes have?
Questão 5
Questão
Which of the followings are common features in cells of all domains
Responda
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Cell membrane ,ribosome ,chromosome/sand cytosol (semi-fluid substance)
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Cytoplasm, centromeres, mitochondria and nucleus
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endoplasmic renticuluim, plasma membrane, Golgi apparatus and lysosomes
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nuclear enveolope, vesicles, vacuoles, chloropyll
Questão 6
Responda
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Have DNA enclosed in a membrane bound nucleus
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Are small and less complex
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Are large and more complex
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Have no organelles
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Are green
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Have organelles
Questão 7
Questão
DNA floats around in prokaryotes
Questão 8
Questão
How many lipid bilayers do cell membranes have
Questão 9
Questão
Which image best describes the cell membrane
Responda
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cell count
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selective barrier
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free passage
Questão 10
Questão
O2 and CO2 pass freely through the membrane of a cell because they are substances which are...
Questão 11
Questão
Cholesterol is increases the fluidity of the phosplipid bilayer
Questão 12
Questão
Which domain rRNA selection composed of 5s,16s,and 23s
Questão 13
Questão
Eukaryotes have ribosomes free just in the cytoplasm
Questão 14
Questão
Eukaryotic DNA is linear and found within the nucleus
Questão 15
Questão
What is the name of the complex of proteins and chromosomes
Responda
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chromatin
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centrosome
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chromatosin
Questão 16
Questão
What is the name of the protein which holds the shape of the nucleus
Responda
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nuclear lamina
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nuclear envelope
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chromatin
Questão 17
Questão
Where is RNA synthesized?
Responda
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Nuclear pores
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Nucleous
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Chromatin
Questão 18
Questão
Bacterial DNA is found in 2 locations
Questão 19
Responda
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are straight
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Contain genetic information
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Are larger that the bacterial chromosome
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Are smaller that the bacterial chromosome
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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
Questão 21
Questão
The cytoplasm doesn't contain organelles
Questão 22
Questão
microfilaments are the largest fibers in the cytoskeleton
Questão 23
Questão
What are the functions for the cytoskeleton
Responda
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Anchor the organelles
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uses ATP to move vesicles around the cells
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make the cell bendy
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link to one another to strenghten cell stucture
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Regulate biochemical activites
Questão 24
Questão
Mirco tubules are hollow
Questão 25
Questão
what is the function of the microtubules
Responda
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shaping the cell
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moving the whole cell
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Guiding movement of organelles
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regulate cell temperature
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Separating chromosomes during cell division
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control the beating of cilia and flagella
Questão 26
Questão
The centrosome is made up of two centrioles
Questão 27
Questão
The centrosome is a
Responda
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microtubule-organizing center
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microtubule- diassembling center
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microtubule-destuction center
Questão 28
Questão
Microfilaments are solid rods comprising a twisted double
chain of
Responda
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chtin subunits
-
actin subunits
Questão 29
Questão
the 3D cortex of the microfiliaments to change the cells shape
Questão 30
Questão
bundles of the microfilament make up the core ore microvilli in the intestinal cells
Questão 31
Questão
In muscle cells...
Responda
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Hundreds of actin filaments are arranged parallel to one another
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Thousands of actin filaments are arranged parallel to one another
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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
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Actin
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Chitin
-
Phosphourous
Questão 33
Questão
What are the functions of the intermediate filaments
Questão 34
Questão
What the difference between the smooth and rough endoplasmic reticulum
Questão 35
Questão
smooth ER secretes glycoprotiens
Questão 36
Questão
What are the functions of the smooth ER
Responda
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secrete glycoprotiens, distributes transport vesicles- proteins surrounded by a membrane
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synthesizes lipids, metabolizes carbohydrates, deoxifies drugs and poisons, stores calcium ions
Questão 37
Questão
which organelles make up the endomembrane sytstem
Questão 38
Questão
The Golgi apparatus manufactures.....
Responda
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micromolecules
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phospolipids
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macromolecules
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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
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exocytosis
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eutytropic
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sterotropic
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cytokensis
Questão 40
Questão
lysomes are sacs of ...... enzymes which can digest macromolecules (proteins, fats,
polysaccharides, nucleic acids
Responda
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sulpuric
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hydrolytic
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nitrite
Questão 41
Questão
what is the name given when a cell engulfs another
Responda
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autophagy
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phagocytosis
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cytokenisis
Questão 42
Questão
autophagy is the process where lysomes
Responda
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Use enzymes to recycle the cell’s own organelles and macromolecules
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fuse with the food vacuole and digests the molecules
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Manufactures certain macromolecules
Questão 43
Questão
The vacuole contains, oxygen, carbon and chlorophyll
Questão 44
Questão
both eukaryotes and prokaryotes have mitochondria
Questão 45
Questão
Mitochondria is where...
Responda
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starch is converted into glucose
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celluar respiration through the generation of ATP
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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
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Cristae
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peroxisome
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medula
Questão 47
Questão
mitochondria have their own ribosomes and DNA
Questão 48
Questão
Chlorophyll contain chloroplast
Questão 49
Questão
Most cells synthesize and secrete materials that are external to the plasma membrane
Questão 50
Questão
The cell walls of Fungi are made of
Questão 51
Questão
which of the following are is NOT in the extra cellular matrix of animal cells
Responda
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collegen
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actin
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proteoglycans
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fibronectin
Questão 52
Questão
he extracellular matrix bind to the receptor proteins in the plasma membrane called integrins
Questão 53
Questão
Which 2 of the following are NOT functions of the ECM
Responda
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Support
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Flexibility
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Adhesion
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Movement
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fixed postioning
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regulation
Questão 54
Questão
Which of the following is a plant cell junction
Responda
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Gap junctions
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Plasmodesmata:
-
•Desmosomes
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Tight junctions
Questão 55
Questão
prokaryotes have organelles
Questão 56
Questão
which of the following are found inside a microbial cells
Questão 57
Questão
Magnetosomes are magnetic enclusions in cells allow
Responda
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microogramism move around magnetic lines
-
help the cell wall stay in place
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remove unwanted information from the cell
Questão 58
Questão
Gas vesicles sink in prokaryotic cells
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
Questão 60
Questão
Prokaryotes produce spores for reporduction
Questão 61
Questão
Which of the following isnt a factor for the dispersal of spore in hardy environment soil
Questão 62
Questão
The composition of peptidoglycan in bacteria is..
Responda
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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
Questão 64
Questão
Capsule/slime layers.....
Responda
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to stick cells together and as a food reserve
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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
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proton motor force
-
ATP release
-
metabolism of glucose
Questão 66
Questão
to benefit cellular exchange bacterial will have
Questão 67
Questão
what do Archaea and eukarya have in common but not bacteria
Responda
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flagella
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histomes
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gas vesicle
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endospores
-
sensitivity antibiotics
Questão 68
Questão
Acheae are the highest tolerating domain
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
Questão 70
Questão
what would you NOT consider to define life?
Questão 71