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35 Cards in this Set

  • Front
  • Back
Which of the following causes a dividing cell to pinch in two by contracting like a purse string?
Actin Filaments
Which is incorrect about the plasma membrane?
Proteins embedded in the lipid bilayer do not move.
The simplest cells are the:
Prokaryotic bacteria
Which of the following kingdoms are prokaryotes?
Archaea
Which organisms do NOT have centrioles?
Plant and fungi
Choose the membrane molecule responsible for aiding passage of polar molecules into and out of the cell.
Transmembrane proteins
An extensive system of internal membranes, called the ______, is where carbohydrates and lipids are manufactured, and proteins are made that will be exported from the cell.
endoplasmic reticulum
Cilia and flagella differ from each other primarily in:
length
An extracellular matrix is produced by glycoprotein secretion by:
animal cells
What is the function of the nucleolus?
The site of ribosome subunit assembly.
Select the membrane molecule that is made up of a polar region with two nonpolar fatty acid tails.
Phospholipids
Oxidative metabolism takes place in the______of the cell.
Mitochondria
Which statement about cell walls is true?
The middle lamella glues the walls of adjacent cells together.
In the sodium-potassium pump, sugars and amino acids, or other molecules, are brought through the membrane along with sodium ions through:
Coupled channels
When a cell membrane engulfs fluid droplets it is called:
pinocytosis
Which of the following processes requires BOTH a channel protein AND energy?
Active transport
Which process would enable a white blood cell to ingest a bacterium?
Phagocytosis
The endosymbiont theor is supported by the following evidence except:
Mitochondria have a matrix.
_____ function in the collection, packaging, and distribution of molecules made in the cell.
Golgi bodies
Which structure helps prokaryotic cells attach to substrates and aid in the exchange of genetic information between cells?
Pili
If a paramecium's contractile vacuole stops working, what minght happen to organisms?
It would fill with water and lyse.
The nucleus of the eukaryotic cell functions:
As the command center for the cell., To shore the cell's hereditary information, To house the nucleolus.
When molecule move through a cell membrane froman area of greater concentration to an area of lesser concentration by way of a channnel protein, it is called:
facilitated diffusion
Which of the following processes requires BOTH a channel protein AND energy?
Active transport
Which of the following is not an organelle?
Ribosome
Which process would enable a white blood cell to ingest a bacterium?
Phagocytosis
When a cytoplasmic vesicle fuses with the plasma membrane, expelling its contents outside the cell, the process is known as:
exocytosis
The endosymbiont theor is supported by the following evidence except:
Mitochondria have a matrix.
_____ function in the collection, packaging, and distribution of molecules made in the cell.
Golgi bodies
Which structure helps prokaryotic cells attach to substrates and aid in th exchange of genetic information between cells?
Pili
If a paramecium's contractile vacuole stops working, what minght happen to organisms?
It would fill with water and lyse.
The nucleus of the eukaryotic cell functions:
As the command center for the cell., To store the cell's hereditary information, To house the nucleolus.
When molecule move through a cell membrane froman area of greater concentration to an area of lesser concentration by way of a channnel protein, it is called:
facilitated diffusion
Which of the following is not an organelle?
Ribosome
When a cytoplasmic vesicle fuses with the plasma membrane, expelling its contents outside the cell, the process is known as:
exocytosis