Bio EOC Review

Which of the following is a prokaryotic cell?

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• 
• 
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Which pair of organelles works together to give structure and support in animal cells?

• Cell wall and cytoplasm

• Cytoplasm and Golgi body

• Cell membrane and cytoskeleton

• Endoplasmic reticulum and cell membrane

A group of students studied four different cell specimens under a microscope and recorded information about each cell in this table.

Which cell specimen is a prokaryote?

• cell 1

• cell 2

• cell 3

• cell 4

The diagram shows a plant cell with several structures numbered. Identify the two cell structures involved in modifying proteins and transporting them out of the cell.

• 2 and 6

• 3 and 5

• 2 and 7

• 4 and 6

The presence of which structure helps classify an organism as eukaryotic?

• cell wall

• mitochondria

• nucleus

• DNA

Which two structures does the eukaryotic cell have that the prokaryotic cell does not?

• Ribosomes and chloroplasts

• mitochondria and a nucleus

• Chromosomes and cytoplasm

• flagella and a cell membrane

Tags

NGSS.MS-LS4-2

A student fills a beaker with a 5% salt solution. The student places a dialysis bag containing a 15% salt solution into the beaker. Then the student measures the salinity of the salt solution in the beaker after 5 minutes. The dialysis tubing is permeable to salt and water.

A. Place a label in the blank box to show the net direction in which water moves immediately after placing the dialysis tubing in the beaker. ​ (a)  

B. Place a label in the blank box to show the net direction in which the salt moves immediately after placing the dialysis tubing in the beaker. ​ (b)  

• Water into tubing
• Salt out of tubing
• Salt into tubing
• Water out of tubing
• No salt movement
• No water movement

For normal nerve transmission in mammals, nerve cells maintain specific concentrations of potassium (K+) ions. Concentrations of Na+ ions are normally higher outside the cell and lower inside the cell, while K+ ions are normally lower outside the cell and higher inside the cell. However, cell membranes are impermeable to Na+ and K+ ions. The diagram shows the relative membranes are impermeable to Na+ and K+ ions in solution inside and outside the cell.

Which process describes how a nerve cell maintains homeostasis in regards to the Na+ and K+ ion concentrations?

• by converting the sodium ions present inside the cell into potassium ions

• by blocking both types of ions from moving into or out of the cell membrane

• by transporting both types of ions through protein pumps within the cell membrane

• by producing more potassium ions inside the cell and eliminating ions as waste

Tags

NGSS.HS-LS1-3

Which structural feature of the cell membrane allows molecules such as oxygen and carbon dioxide to diffuse into and out of the cell?

• The cell membrane contains protein molecules.

• The cell membrane contains cholesterol molecules.

• The cell membrane is made up of two layers of phospholipids.

• The cell membrane is anchored to the cytoplasm by the cytoskeleton.

The transcription of a DNA molecule into an mRNA molecule, and the translation of that mRNA molecule, can occur simultaneously in prokaryotic cells. This does not occur in eukaryotic cells.

Which statement explains why transcription and translation can occur simultaneously in prokaryotic cells but NOT in eukaryotic cells?

• Prokaryotic cells have more mitochondria to produce energy.

• Prokaryotic cells lack a nucleus to separate the two processes.

• Eukaryotic cells do not create amino acids until transcription is complete.

• Eukaryotic cells lack ribosomes to translate mRNA for protein synthesis.