UCI Bio 93- Midterm 1 Exam Questions and Answers |Complete Solutions
Graded A+ |100% Correct
in animal cells the microtubule organizing center has how many centrioles two
what is the arrangement of microtubules in cilia and flagella? 9+2
motions of sperm flagella
back and forth motion (sea anemone) cilia
complex of molecules generated by cells extracellular matrix
what is the ECM made of? glycoproteins (proteins and carbohydrates- collagen)
link ECM proteins such as fibronectin with the cellular cytoskeleton (helps bind signals to
cytoplasm) integrins
-energy transformers in the cell
-enclosed in membranes but not part of the rest of the cells endomembrane system
-location in cell is not fixed
-grow and reproduce within the cell mitochondria and chloroplasts
grow and reproduce within the cell semiautonomous
in all eukaryotic cells mitochondria
in leaves and other green structures of plants and in eukaryotic algae chloroplasts
,membrane bound organelle formed by proteins and lipids in the cytosol peroxisomes
is peroxisomes apart of the endomembrane? no
function of peroxisomes is to... breaks down fatty acids and detoxify alcohols and other
poisons
contains genetic library of eukaryotic cells nucleus
DNA and associated proteins- synthesis of mRNA
fold into chromosomes chromatin
synthesis of rRNA- formation of ribosomal subunits nucleolus
phagocytosis requires the extensions of... pseudopodia
nuclear envelope is surround by fibrillar network called... intermediate filaments
what is a part of the endomembrane system? nuclear membrane, ER (endoplasmic
reticulum), golgi apparatus, lysosomes, vesicles, endosomes and cell membrane
what are nuclear pores composed of? nucleoprotein proteins
synthesize proteins
composed of rRNA combined with cytosolic proteins
2 subunits (large and small)
, free and bound (same structure) ribosomes
synthesize cytosolic proteins free ribosomes
synthesize integral membrane proteins and secreted proteins bound ribosomes
what does not have a nuclear transport signal? DNA
smooth and rough
continuous with nuclear envelope endoplasmic reticulum (ER)
internal space of ER cisternae
rich in metabolic enzymes
has no ribosomes smooth ER
synthesis of lipids
metabolism of carbohydrates
detoxification of drugs and poisons
calcium sequestration functions of smooth ER
processing of proteins formed on bound ribosomes and membrane factory rough ER
secreted proteins
membrane proteins (inserted in membrane) functions of rough ER
Graded A+ |100% Correct
in animal cells the microtubule organizing center has how many centrioles two
what is the arrangement of microtubules in cilia and flagella? 9+2
motions of sperm flagella
back and forth motion (sea anemone) cilia
complex of molecules generated by cells extracellular matrix
what is the ECM made of? glycoproteins (proteins and carbohydrates- collagen)
link ECM proteins such as fibronectin with the cellular cytoskeleton (helps bind signals to
cytoplasm) integrins
-energy transformers in the cell
-enclosed in membranes but not part of the rest of the cells endomembrane system
-location in cell is not fixed
-grow and reproduce within the cell mitochondria and chloroplasts
grow and reproduce within the cell semiautonomous
in all eukaryotic cells mitochondria
in leaves and other green structures of plants and in eukaryotic algae chloroplasts
,membrane bound organelle formed by proteins and lipids in the cytosol peroxisomes
is peroxisomes apart of the endomembrane? no
function of peroxisomes is to... breaks down fatty acids and detoxify alcohols and other
poisons
contains genetic library of eukaryotic cells nucleus
DNA and associated proteins- synthesis of mRNA
fold into chromosomes chromatin
synthesis of rRNA- formation of ribosomal subunits nucleolus
phagocytosis requires the extensions of... pseudopodia
nuclear envelope is surround by fibrillar network called... intermediate filaments
what is a part of the endomembrane system? nuclear membrane, ER (endoplasmic
reticulum), golgi apparatus, lysosomes, vesicles, endosomes and cell membrane
what are nuclear pores composed of? nucleoprotein proteins
synthesize proteins
composed of rRNA combined with cytosolic proteins
2 subunits (large and small)
, free and bound (same structure) ribosomes
synthesize cytosolic proteins free ribosomes
synthesize integral membrane proteins and secreted proteins bound ribosomes
what does not have a nuclear transport signal? DNA
smooth and rough
continuous with nuclear envelope endoplasmic reticulum (ER)
internal space of ER cisternae
rich in metabolic enzymes
has no ribosomes smooth ER
synthesis of lipids
metabolism of carbohydrates
detoxification of drugs and poisons
calcium sequestration functions of smooth ER
processing of proteins formed on bound ribosomes and membrane factory rough ER
secreted proteins
membrane proteins (inserted in membrane) functions of rough ER
