Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Solved Assignments
Asked Questions
Answered Questions
Based on the latest publication of the Neandertal and Denisova genomes, explain the present model for putative hybridization and gene flow between these lineages and modern humans.
In a cell, there is less water on the inside and less glucose on the outside. Water wants to enter the cell and the cell wishes to transport in more glucose. Relative to the cell, what kind of envir
Describe the primary difference between passive and active transport in terms of concentration gradients?
A type of cell termed as a lymphocyte makes proteins which are exported from the cell. You can track the path of these proteins within the cell from production via export by labeling them with radio
I want to choose and describe two organelles and compare their structure and function. What would be a specific probable effect on the cell if each of the organelles were lost?
Describe the relation between muscles, ATP energy and the calcium ion. I will be using for class, if there are any references please comprise them.
Choose at least two cell organelles. What does each organelle do? What changes would occur in the cell if your first organelle took over all the duties of the second organelle?
What structure is found in the eukaryotic cell's nucleus and what is its equivalent in the prokaryotic cell? Write down the advantages of the three different types of vacuoles found in the eukaryotic
Prokaryotic cells are simple cells. Eukaryotic cells are more complex. What structures do eukaryotic cells have that prokaryotic cells do not? What are different kinds of eukaryotic cells? How do th
Eukaryotic cells are complicated in organization and structure, especially when you consider their small size. Consider the organelle contents of the typical eukaryotic cell.
The endosymibiotic theory recommends a description of the origin of mitochondria, chloroplasts and eukaryotic cells. Describe the evidence for this theory. Are you convinced?
Comprise any reactions needed for this process, and describe how the energy from the sun ends up as chemical energy for the anaerobic organism or cell.
Complete explanations of photosynthesis and aerobic respiration. Explain how these two processes are linked between plants and animals based on the reactants and products (water, carbon dioxide, glu
Some of the species of bacteria which live at the surface of sediment on the bottom of lakes are facultative anaerobes; which is, they are capable of either aerobic or anaerobic respiration.
The integrity of the plasma membrane is necessary for cellular survival. Could the immune system use this fact to destroy foreign cells which have invaded the body?
An integrin is an integral membrane protein in the plasma membrane of cells. This plays a role in the attachment of a cell to the extracellular matrix (ECM) and to other cells, and in signal transd
Explain why do you think the plasma membrane exists in all living things? Why aren't there living things that do not encompass a membrane at their periphery?
1) Explain why must particles be extremely small to explain Brownian movement? 2) Describe the difference between molecular motion and diffusion?
Describe why phospholipids encompass a natural tendency to self assemble into a bi-layer. Explain why is this biologically significant?
I want a basic explanation of the difference in the rates at which glucose is transported across the cell membrane versus the concentration gradient of glucose.
Describe how the axonal membrane potential is restored following action potential depolarization. Explain h how resting ionic distributions are maintained.
What sorts of member molecules might be distributed asymmetrically? Explain why does it make sense for some components of membranes to be asymmetrically distributed?
1) Describe why the coupling of the import of amino acids or sugars into cells is usually linked to Na+ ion import. 2) What happens to the post-synaptic cell's membrane potential at an inhibitory syna
As materials move from high concentration to the low concentration by simple diffusion, and they move the similar way by facilitated diffusion, explain why do cells make proteins to carry out facili