Pregunta 1
Pregunta
What are Darwin 3 theories on evolution?
Respuesta
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there is a struggle for existence
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there is variation between individuals of the same species
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that individual characteristics are heritable
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that individual characteristics aren't heritable
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there is variation of individuals in differing species
Pregunta 2
Pregunta
Anabolic reactions are reactions that break down molecules
Pregunta 3
Pregunta
Anabolic reactions build molecules
Pregunta 4
Pregunta
Prokaryotes have a [blank_start]simple[blank_end] structure, they have [blank_start]no nuclear membrane[blank_end] but have a [blank_start]cell wall[blank_end]. Their DNA is also [blank_start]not seperated[blank_end].
Respuesta
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simple
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complex
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no nuclear membrane
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a nuclear membrane
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cell wall
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cell membrane
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not seperated
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separated
Pregunta 5
Pregunta
Totipotent means the cell can become specialised
Pregunta 6
Pregunta
What is light microscopy?
Pregunta 7
Pregunta
What are the limitations of light microscopy?
Respuesta
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wavelength of natural light
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wavelength of light
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can only use thin layers of cells
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can only see certain organelles
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can't be used for certain tissue samples
Pregunta 8
Pregunta
What type of stains can be used for histochemistry
Pregunta 9
Pregunta
The differences between gram positive and negative is that gram positive [blank_start]resists[blank_end] purple stains and has [blank_start]thick[blank_end] peptidoglycan whereas gram negative has [blank_start]thin[blank_end] peptidoglycan and [blank_start]absorbs[blank_end] the purple colour
Respuesta
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resists
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thick
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thin
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absorbs
Pregunta 10
Pregunta
The process of immunolabelling
[blank_start]Unlabelled[blank_end] antibody [blank_start]binds[blank_end] to antigen then a secondary labelled [blank_start]antibody[blank_end] binds to the primary antibody and [blank_start]emits light[blank_end] as a marker
Respuesta
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binds
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Unlabelled
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antibody
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emits light
Pregunta 11
Pregunta
Two bacterial specialisations are [blank_start]pili[blank_end] and [blank_start]flagella[blank_end]. [blank_start]Pili[blank_end] is for adhesion and [blank_start]flagella[blank_end] is for movement
Respuesta
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pili
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flagella
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Pili
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flagella
Pregunta 12
Pregunta
Protists are [blank_start]unicellular[blank_end] organisms such as [blank_start]algae[blank_end] or amoeba
Respuesta
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unicellular
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multicellular
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algae
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sponges
Pregunta 13
Pregunta
Structure and function of fungi
Respuesta
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have rigid cell walls
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have no cell wall
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have a cell membrane
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made of microscopic filaments
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are heterotrophs absobers
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create molecules using enzymes
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break down molceules using enzymes so they can be absorbed
Pregunta 14
Pregunta
3 types of plant tissues
Respuesta
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ground tissue
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vascular tissue
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Dermal tissue
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stem tissue
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root tissue
Pregunta 15
Pregunta
Ground tissue is for [blank_start]support[blank_end] and [blank_start]energy storage[blank_end], vascular tissue is for [blank_start]transport of water and nutrients[blank_end] and dermal tissue is for [blank_start]protection[blank_end]
Pregunta 16
Pregunta
Epithelial cells are [blank_start]tightly packed[blank_end] cells which are [blank_start]specialised[blank_end]. They form a barrier and have [blank_start]absorbant[blank_end] properties and can facilitate absorbtion by [blank_start]microvilli[blank_end]
Respuesta
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tightly packed
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specialised
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absorbant
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microvilli
Pregunta 17
Pregunta
The two types of connective tissues are [blank_start]fibroblasts[blank_end] which are for [blank_start]support[blank_end] and secretion and [blank_start]leukocytes[blank_end] which are for [blank_start]defense[blank_end]
Respuesta
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fibroblasts
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support
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leukocytes
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defense
Pregunta 18
Pregunta
What are the intermediate filaments function?
Respuesta
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to provide cell strength
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to provide support
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to provide protection
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to provide defense
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to provide nutrients
Pregunta 19
Pregunta
What processes occur in the nucleus?
Respuesta
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DNA replication
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DNA transcription
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RNA transcription
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RNA translation
Pregunta 20
Pregunta
What occurs when a large nucleolus or multiple nucleoli is present
Pregunta 21
Pregunta
When DNA is highly condensed it is undergoing mitotic division
Pregunta 22
Pregunta
What is the role of lamins?
Pregunta 23
Pregunta
What are nuclear pores ?
Respuesta
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small channels for diffusion of water soluble molecules
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large molecules for water soluble molecules
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small channels for ion transport
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small channels to allow for small molecules to pass
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large channels for protein transportation
Pregunta 24
Pregunta
Facts about ribosomes
Respuesta
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they occur freely in the cell
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they occur attached to the rough ER
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they occur attached to smooth ER
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free ribosomes synthesise cytosolic proteins
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free ribsomes synthesise mitochondria
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attached ribosomes synthesise chloroplasts
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free ribosomes synthesise chloroplasts and peroxisomes
Pregunta 25
Pregunta
The first stage of mitotic division is [blank_start]prophase[blank_end] the second is [blank_start]metaphase[blank_end] the third is [blank_start]anaphase[blank_end] the fourth is [blank_start]telophase[blank_end] and then undergoes [blank_start]cytokenesis[blank_end]
Respuesta
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prophase
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metaphase
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anaphase
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telophase
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cytokenesis
Pregunta 26
Pregunta
DNA replication requires a [blank_start]replication[blank_end] complex in order to bind to the replication [blank_start]start site[blank_end]. The complex contains [blank_start]DNA polymerase[blank_end] which assembles [blank_start]nucleotides[blank_end] into DNA strands. The replication has many start points to [blank_start]speed up[blank_end] replication time.
Respuesta
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replication
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translation
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start site
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end site
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DNA polymerase
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DNA helicases
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nucleotides
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codons
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speed up
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slow down