Exam 4: Cell Structure

When a vesicle moves along microtubules toward the center of the cell,the molecular motor(s)________ are used?

Cardiac muscle cells are connected by special junctions called intercalated discs.Intercalated discs provide strength between cells of tissues which exhibit high mechanical stress,strong flexible connections between tissue cells,and electrical excitability between the cells.Using this information,which junctions are present in intercalated discs?

Integrins are glycoproteins that help link the cytoskeleton and the:

Nuclear pores permit the passage of all the following except:

Mitochondria and chloroplasts are the other organelles besides the nucleus that contain:

You have identified an enzyme that appears to be involved in the addition of palmityl group (a fatty acid)to certain proteins.Knowing that palmitoylated proteins are usually targeted for delivery to the plasma membrane,in which organelles might this enzyme be expressed?

Scientists believe that stimulating growth of algae and other organisms can reduce carbon dioxide amounts in the atmosphere.Where is carbon dioxide consumed in a plant cell?

The evolutionary process that created chloroplasts and mitochondria is:

If a water molecule passes through the outer membrane of a chloroplast,how many more membranes will it have to move through to be in the stroma?

This cellular structure lacks a membrane:

Sulfolobus are archaea that are commonly found in geothermal environments,with an optimum growth temperature of about 80°C.What feature allows archaea to thrive at such temperatures?

Photosynthetic pigments in bacteria are located in the:

The peptidoglycan of bacterial cell walls contains a carbohydrate matrix linked together by short chains of:

Mitochondrial disorders can be caused by mutations in all the following except:

A team of researchers is studying the external structures on the dorsal (back)surface of a spider mite.The spider mite seems to be the habitat of an even smaller mite,which is approximately 0.05mm.While they can see the dorsal surface of the spider mite with their naked eye,they cannot see the mite clearly.The researchers are writing a grant to provide support for a microscope to use to study these new mites.They need to purchase a microscope with a high magnification to observe the new mites on their habitat.Based on the information given,what type of microscope would you suggest?

Matthew noticed that his house plants were wilting badly.Which cell structure had most likely contracted?

Who first described cells?

The "X" shaped chromosomal hereditary material can be packaged in this organelle in eukaryotic cells but not in prokaryotic cells.This organelle is the:

Given what is known about the minimal essential functions of cellular life,if you could create an artificial cell,what cellular structures must you include?

The major histocompatibility complex is important in a T-cell's ability to: