Developing fetuses rely on glucose from parental circulation for growth and development. Glucose transfer from parent to fetus occurs in two steps: 1) movement of glucose from parental circulation into the intervillous space, and 2) movement of glucose from the intervillous space into fetal circulation. Glucose is a lipid-insoluble molecule that does not require energy for movement during either of these steps. Which method of membrane transport does glucose utilize to move from parental circulation to fetal circulation? (Be as specific as possible.

Gaucher disease, caused by the inhibited digestion of lipids, results in the accumulation of fatty acids within many organs in the body and leads to their subsequent dysfunction. Which of the following describes the most likely subcellular component and related process responsible for the development of Gaucher disease? A B с D Lysosomes contain insufficient amounts of enzymes necessary for the metabolism of lipids. The Golgi complex produces vesicles with highly permeable membranes that cannot ef- fectively regulate the movement of particles. Mitochondria are not producing a sufficient amount of ATP required for the digestion of lipids. The rough endoplasmic reticulum contains an unusually high number of ribosomes, re- sulting in an overproduction of digestive enzymes.

Explain the movement of indirect protein transport; where are the proteins made, where are they going (some examples for each destination). Remember there are soluble and insolubleproteins (membrane bound).

he human body requires various nutrients which are essential for health and can be obtained from a balanced diet. Compare and contrast the digestion and absorption of (a) proteins and (b) fats along the gastrointestinal (GI) tract. Discuss the principal enzymes involved and the carrier transport mechanisms and/or intracellular processes at play.

Match the transport process to the correct description or example. Primary Active Transport is: Group of answer choices transport of glucose out of cell, with its concentration gradient transport of sodium out of a neuron using the sodium potassium pump breaking of a covalent bond to create new molecules transport of large macromolecules into a cell transport of signal molecules out of an endocrine cell transport of a steroid hormone into a cell transport of glucose into a cell, against its concentration gradient import of an entire bacterium into a white blood cell

3. 4. 5. The waved albatross feeds exclusively on marine organisms and has no access to fresh water. It has specialized nasal glands to excrete excess salt. Consider the cellular mechanisms that might be involved in the productions of the highly concentrated salt solution released by this bird. a) Would the production of the concentrated salt solution be an active process or a passive process? Explain your reasoning. b) What type of membrane transport mechanisms might be involved? c) What problems might arise if the albatross were unable to rid itself of excess salt? Consider the following statement: "An understanding of chemistry is essential to a solid understanding of biological processes." State whether or not you agree with this statement and why. Use at least two specific examples from this course to justify your response. a) Describe, using a diagram or point form notes, what is happening during transcription and translation of protein synthesis. Indicate where these events take…

The studies of Palade and colleagues used pulse chase labeling with radioactively labeled amino acids and auto radiography to visualize the location of newly synthesized proteins in pancreatic acinar cells. These early experiments provided invaluable information on protein synthesis and intercompartmental transport. New methods have replaced these early approaches, but two basic requirements are still necessary for any assay to study this type of protein transport. What are they, and how do recent experimental approaches meet these criteria?

During digestion, the concentration of hydrogen ions (H+) in the stomach rises to many times that within the cells lining the stomach, where H+ are produced. Is the type of transport process involved passive or active?