During an investigation of a freshwater lake, an AP Biology student discovers a previously unknown microscopic organism. Further study shows that the unicellular organism is eukaryotic.
Identify FOUR organelles that should be present in the eukaryotic organism and describe the function of each organelle.
Did this page help you?
Cystic fibrosis is a genetic condition that is associated with defects in the CFTR protein. The CFTR protein is a gated ion channel that requires ATP binding in order to allow chloride ions (CI-) to diffuse across the membrane.
In the provided model of a cell, draw arrows to describe the pathway for production of a normal CFTR protein from gene expression to final cellular location.
Identify the most likely cellular location of the ribosomes that synthesize CFTR protein.
Identify the most likely cellular location of a mutant CFTR protein that has an amino acid substitution in the ATP-binding site.
Did this page help you?
The following data were collected by observing subcellular structures of three different types of eukaryotic cells.
RELATIVE AMOUNTS OF ORGANELLES IN THREE CELL TYPES
Cell Type | Smooth ER | Rough ER | Mitochondria | Cilia | Golgi Bodies |
X | Small amount | Small amount | Large number | Present | Small amount |
Y | Large amount | Large amount | Moderate number | Absent | Large amount |
Z | Absent | Absent | Absent | Absent | Absent |
Based on an analysis of the data, identify a likely primary function of each cell type and explain how the data support the identification.
Did this page help you?