Biology

QuestionAnswer
What are Intermediate Filaments (cytosol) important for?
3D shapes and cellular identity
What do plant, agal and fungal cells all contain?
A cell wall
Phosphorus is an important element in life because:
all options are true
it can be found in hydrophilic components of cell membranes
it is a key component of the nucleotide backbone of DNA
it is used to form high energy bonds in metabolism
how does the lysosome internally degrade material
autophagy
tree of life sections
bacteria, archaea, eukaryota
Are the hydrophobic tails are found in the centre or at either end
centre
either end
2 double-stranded DNA copies are held together by what?
centromere
What gives polarity and causes the separation of the cytoplasm into 2 daughter cells?
centrosome
What do mitochondria and chloroplasts contain?
double-membranes
is DNA a double-stranded or a single-stranded molecule?
double-stranded
single-stranded
Are the hydrophilic heads found at the centre or at either end
either end
centre
How does the lysosome externally degrade material
endocytosis or phagocytosis
What is this that eukaryotic cells contain: an internal membrane system which is found throughout the cytoplasm and is important is cellular organization and compartmentalization?
Endomembrane Network
What is an endomembrane network that connects to the nuclear envelope and consists of a series of folds (cisternae) within the cytoplasm around the nucleus?
endoplasmic reticulum
What is this concept called: Some eukaryotic organelles evolved from primate prokaryotes that set-up symbiotic relationships with and were eventually encompassed by early eukaryotic cells?
Endosymbiotic Theory
nvagination of the plasma membrane to enclose the nuclear region and form a nucleus was the earliest step in what?
eukaryotic cells evolution
variation drives _
evolution
What does the phospholipid bi-layer do?
gives polarity and forms barriers
What is important for processing and sorting proteins?
Golgi apparatus
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larger microtubules
Luca
last universal common ancestor
what is the smooth endoplasmic reticulum important in?
lipid synthesis
which cell organelle degrades material
lysosome
2 examples of metabolic organelles
mitochondria and chloroplast
What is the main form of cell division in eukaryotic cells?
Mitosis
What is a network of cytoskeleton proteins that form fibers that reach throughout the cell and separate sister chromatids?
Mitotic Spindle
The Endomembrane Network connects from where to where?
nucleus to plasma membrane
What are a unique lipid species that possess both hydrophobic portions (fatty acid chains/tails) and hydrophilic portions (phospho-linked functional groups/heads) and are therefore termed amphipathic?
phospholipids
rna is transcribed into _ via _
protein, ribosomes
What is not included Endomembrane System?
ribosomes
nuclear envelope
endoplasmic reticulum
Golgi Apparatus
lysosomes
plasma membrane
dna is transcribed into what
rna
what is used for phylogenetic analyses
rRNA gene sequences
chromatin replicates to give rise to what?
sister chromatids
prolonged and intimate relationship between organisms
symbiosis
What acts as a barrier between the intracellular environment and hydrophilic/water-loving external environment?
the plasma membrane
biology
the study of the organisation, structure and function of living organisms
mutation drives _
variation
how do proteins leave the Golgi apparatus?
via vesicles