New answers tagged

1

What is anorexia nervosa? Generally, it is an eating disorder which is characterised by a tremendous fear of food as well as an extreme weight loss. Patients with anorexia nervosa do not necessarily lose their appetite but rather obsessively control and restrict their food intake. Anorexia Nervosa as an inherited disease/genetic factors There has ...


1

Christiaan has answered your first question, it is external constraints that restore the muscle `rest' shape — this is also the case for nonskeletal muscle as the bladder. On question 2, I will give a little more details, broadly based on Huxley 1957: imagine the muscle is trying to contract against something infinitely resistive. Full contraction cannot be ...


2

ad 1. : In skeletal muscle, contraction of the antagonist stretches the agonist to its original position (Fig. 1). ad 2. : Yes, ATP generates a fixed amount of energy that limits the force generated. Fig. 1. Agonist/antagonist pairs in the skeletal musculature have opposing actions. source: wikipedia


4

Statocysts are composed of a spherical structure with smaller granule statoliths inside; the orientation of these granules is recepted by cilia receptor cells. So in a situation like the ISS, statoliths would be randomly floating around, being recepted by cila receptor cells. At some times, the distribution of statoliths may be concentrated on one side, ...


0

The question is quite unclear but I'll try to say a few words that may help you. You seem to be considering evolution as an individual that decides what is good and what is not. You seem to be considering the evolution as determing at any time point what will be good for a given species. That sounds very wrong. Evolution is much more than Natural Selection ...


1

‘Reversible’ and ‘Irreversible’ are standard designations in enzyme kinetics. It may be that your instructor was using the word in this sense. As already commented, irreversible inhibitors bind the enzyme in such a way that they don't dissociate from it. Either they form a covalent bond or their affinity for the binding site is extremely high. Reversible ...


3

According to this article female ejaculate is produced by the Skene glands.


2

There is no standard notation called Q (matrix). However in this case I think the matrix that they are referring to is the state transition matrix (similar to the adjacency matrix as mentioned by Justas in the comments, but with rates instead of just the connections). Basically you have three states (lets call them A, B and C) and there is a rate for ...



Top 50 recent answers are included