AP Bio Chapter 4 Test

Which of the following organelles would be unique for a cell that is both eukaryotic and autotrophic?

• mitochondira

• ribosomes

• rough endoplasmic reticulum

• choloplast

After a protein is formed by a ribosome located on the endoplasmic reticulum, which organelle would the protein be transported to next?

• mitochondria

• smooth endoplasmic reticulum

• golgi appartatus

• nucleus

Cell theory is based on the work of several scientists. Whcich scientist is correctly associated with his contribution?

• Van Leeuwenhoek determined cells are the basic unit of life

• Schneider determined all organisms are composed of cells

• Schwann applied cytology to the study of bacteria

• Virchow determined that all cells arose from pre-existing cells

Two potato cubes (1 mm3 and 2mm3) were placed in a solution of iodine. The absorption of iodine can be visualized by observing the purple color iodine and starch reaction. Why would the smaller (1 mm3) be completely purple in a shorter amount of time?

• The surface area is larger and more iodine can be absorbed

• The enzymes in the smaller cube have a higher metabolic rate and an increased reaction rate

• The distance the iodine migrates is directly related to the surface area to volume ratio

• The surface area to volume ratio is smaller for the small cube

The DNA of a prokaryote is found as a coiled chromosome in the __ and the plasmids are found in the ___.

• nucleus; inner mebrane

• nucleolus; mitochondria

• nucleoid region; cytoplasm

• cytoplasm; ribosomes

What evolutionary process is occurring in the fourth representation of the cell

• proliferation

• secretion

• invagination

• endosymbiosis

All eukaryotic cells are characterized by?

• membrane-bounded cells

• smaller ribosomes than those of prokaryotic cells

• the production of ATP

• Multiple compartments within the cytoplasm

Which of the following is supporting evidence for the endosymbitoic theory?

• Mitochondria have a single phospholipid membrane

• mitochondria are similar in size to bacteria

• mitochondria can separate from their host cell and live independently

• the DNA in mitochondria has been traced to viral DNA

Using figure 4-2, a eukaryotic organelle that can easily be seen with the light microscope is the

• endoplasmic reticulum

• nucleus

• lysosome

• polyribosome

A ribosome is one of the smaller organelles and cannot be seen with a light microscope. Which diameter would best represent the size of a eukaryotic ribosome?

• 1 nm

• 10 nm

• 30 nm

• 1um