Cell Test

Which cube-shaped cell would be most efficient in removing waste by diffusion?

10

which is evidence that eukaryotes and prokaryotes share a common ancestor?

All eukaryotes and prokaryotes contain ribosomes.

Which best describes the role of mitosis?

Distributing replicated chromosomes to daughter nuclei.

Which of the following shows the order in which protein X moves through the cell?

ER—>Golgi—>lysosomes

Which describes the location of cholesterol in an animal cell?

Embedded in the plasma membrane.

Which describes an advantage of eukaryotes over prokaryotes?

Eukaryotes have organelles that allow for compartmentalization of cellular processes which increases the efficiency of those processes.

What evolutionarily advantage does compartmentalization offer eukaryotes?

Evolution of the nucleus and eukaryotes separates the process of transcription and translation and can be regulated separately.

Which additional investigation can be used to determine when the cells are in an isotonic solution?

Increasing the salinity of the environment a little at a time until the ATP usage reaches a minimum.

Which process is most likely to occur as a result of an animal cell receiving a signal to initiate apoptosis?

Lysosomes will release digestive enzymes into the cytosol

Which is the strongest evidence supporting the Endosymbiotic hypothesis?

Mitochondria have their own DNA and divide independently of the cell.

which describes a movement taking place?[Cell membrane diagram]

Na+ tansport out of the cell requires ATP hydrolysis

Which summarizes an advantage of eukaryotes having internal membranes?

Organelles isolate specific reactions, increasing metabolic efficiency.

Which describes the next cell process?

Paired chromatids separate, and the new daughter chromosomes will move toward opposite poles of the cell.

If hydrolysis is inhibited, which of the following types of movement across the cell membrane is also inhibited?

Passage of solute against its concentration gradient.

[Semi permeable membrane "U" experimental set up] which design will result in fastest net rate of water into A?

Placing salt water in chamber and distilled water in chamber B.

Which is the dependent variable?

The absorbance of 460 nm light by the treatment solutions.

[Cell cycle regulation diagram] which describes the effect of a drug that blocks the production of the mitotic cyclin?

The cell would be prevented from entering mytosis, and the cell would stop dividing.

[Sodium potassium pump diagram] which will result from a loss of protein X function?

The membrane potential will be disrupted by an increase in K+ concentration inside the cell.

A kidney cell has fingerlike projections. Which best explains the advantage these projections provide?

The projections increase the surface area to volume ratio of the cell, which allows for more efficient nutrient exchange with the environment.

Which identifies treatment the group most likely to have provided an unreliable estimate of the mean and explains why?

Treatment group 2; it has lower than expected mean absorbance in the largest standard error of the mean.

Which explains why this antitumor works? [chart]

Tribectin interferes with DNA duplication during interphase and prevents cancer cells from passing the G2 checkpoint.

Which would allow the scientist to observe transport of a saw you across the artificial membrane?

Use a small, nonpolar saw you instead of a protein.

[RBC shrunk, RBC normal, RBC burst] which predicts what a lab worker would see?

View 2; because the rate of water movement into the RBCs equals the rate of water movement out of the cells.

Which question is most relevant? [Transport diagram]

Which molecular substance is actively transported across the plasma membrane?

[graph]Which of the following graphs is the most appropriateRepresentation of the experimental data?

[the bar graph with standard error of the mean bars]

[Cycling chart] which describes the role of cycling in the regulation of the cell cycle?

during M phase, the cyclin peaks, resulting in an increase binding frequency with CDK.

[model of plasma membrane]Which best explains why correct protein folding is critical in the transmembrane proteins shown above?

interactions of the hydrophobic and hydrophilic amino acids help to anchor the proteins in the membrane.

The figure below is a eukaryotic cell. which best describes how the three structures work together?

to synthesize and isolate proteins for secretion or for use in the cell.