Ahormone attaches to a target cell at a receptor protein. what do you know about this hormone? it is a steroid hormone it is a non-steroid hormone it is able to pass through cell membranes it will enter the nucleus

I believe your answer would be, it is a non-steroid hormone

B. It is a non-steroid hormone.

Explanation:

Hormones can be divided into two categories based on their binding with the receptors: Some hormones are water soluble like peptide hormones and catecholamines, they cannot cross the cell membrane of the target cell and so they bind to the receptors on the plasma membrane. Binding to membrane receptors further leads to activation of intra-cellular enzymes leading to physiological change. These hormones can also be referred as non-steroid hormones. One good example is insulin hormone. Insulin binds to the membrane receptor and brings about the physiological change by activation of protein kinase inside the cell.

The other group of hormones are called steroid hormones and thyroid hormones which can cross the cell membrane and bind to the intra-cellular receptors. The hormone-receptor complex then binds with or activates the specific portion of DNA strand, which in turn initiates transcription and translation of specific genes for bringing the physiological change.

c. movement because i took the test and it lets me review my answers

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.