Exam 4: Lifes Home: the Cell

The compartment that holds most of a eukaryotic cell's DNA is the ________.

Every form of life is either a single cell or is composed of cells.

Proteins destined to be secreted by the cell are produced:

The function of ribosomes is to synthesize:

Which of the following is involved in modifying,sorting,and shipping proteins?

List the sequence of organelles a protein would pass through as it moves through the endomembrane system to the exterior of the cell.

Nerve cells have long thin extensions of their cell membrane called axons.The cell has to get mitochondria from the body of the cell all the way down to the end of the axon to provide energy for nerve signal transmission.What structure in a nerve cell would be involved in moving the mitochondria,and how would it work?

Smoker's cough results from damage to the external structure of lung cells by tobacco smoke.What part of the cell would you predict is damaged?

Which organelles would not be considered part of the endomembrane system? Explain your answer.

Name and describe three organelles that are common to animal and plant cells.

Which choice below correctly matches organelle with function?

Gap junctions are found in plant cells.

Vesicles that contain digestive enzymes are called lysosomes.

The central vacuole is used for nutrient storage and photosynthesis in plant cells.

Actin forms cytoskeletal fibers called ________.

Without photosynthesis,most animal life on the Earth could not survive.

The cytoskeleton is an internal scaffolding used for cellular movement.

Which of the following would you find in a plant cell but not an animal cell?

A man was under treatment for infertility.Examination of his sperm showed that his sperm could not swim.He also suffered from chronic bronchitis and other respiratory problems in which mucus with trapped particles was not being cleared from his lungs.From this you might infer he has a genetic defect affecting which structures inside his cells?

The 1992 film Lorenzo's Oil told the true story of Lorenzo Odone who suffered from the disease adrenoleukodystrophy.This disease affected an organelle in his cells called a peroxisome.The peroxisome lacked an enzyme that controls the breakdown of a long chain fatty acid that resulted in a buildup of the fatty acid in his brain and spinal cord.The function of peroxisomes must be similar to the function of what other organelle?