mitochondria
testosterone.
Testosterone
cAMP
Proteins.Answer found in Eighth Edition of Essentials of Human Anatomy and Physiology by Elaine N. Marieb
H20 molecules can pass through the membrane freely, however sucrose molecules are too large.
Water soluble molecules such as protein and RNA.
cytoplasm is located between the cell membrane and the nucleus.
NucleoplasmThough nucleoplasm and cytoplasm are both semi-fluid mediums, it is cytoplasm that contains water and various types of molecules suspended or dissolved in the medium. This is according to "Human Biology" by Sylvia S. Mader p.46 sec. 3.2 How Cells Are Organized.
Chemical messengers to send information move molecules in and out of cells
Primary messengers are hormones (extracellular molecules) that conduct the signalling events by not passing though the membrane but binding on the cell surface receptors. Secondary messengers are small molecules that may cross the membrane which actually conduct the downstream signalling events inside the cell (intracellular). cAMP, cGMP, calcium ions, inositol triphosphate are a few secondary messengers. cell proliferation, differentiation, migration, metabolism, cell death such as apoptosis events are all controlled by signalling pathways.
Target Cell
Proteins.Answer found in Eighth Edition of Essentials of Human Anatomy and Physiology by Elaine N. Marieb
Cytoplasm is a jelly like fluid between the cell membrane and nuclear membrane.In cytoplasm chemical reactions take place ,these reaction are collectively known as metabolism.
Besides the concentration of the chemical, the pore size of the plasma membrane, and the osmotic pressure of the cytoplasm - nothing else influences the rate of diffusion of a chemical across a plasma membrane.
lysosome
H20 molecules can pass through the membrane freely, however sucrose molecules are too large.
cytoplasm
Water soluble molecules such as protein and RNA.
cytoplasm is located between the cell membrane and the nucleus.
lysosome