1. Water is capable of dissolving a variety of different substances, which is why it is such a good solvent. And, water is called the "universal solvent" because it dissolves more substances than any other liquid. ... This allows the water molecule to become attracted to many other different types of molecules.
2. In chemistry, polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole moment, with a negatively charged end and a positively charged end. Polar molecules must contain polar bonds due to a difference in electronegativity between the bonded atoms.
3. The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms. When a neutralmolecule has a positive area at one end and a negative area at the other, it is a polar molecule.
Please try to put this in your own words because I gathered this from a website, and dont want you to get in trouble for plagiarism.
Answer:
I know that it cant be A,B,C. D is close but it seams that it also slightly getting dryer, so i think that I would go with OTHER.
Only small, uncharged molecules (like 02 for example) can go in or out of the cell by simple diffusion.
Since glucose is a relatively large molecule and ions (like Na+, Cl-) have an electric charge, they are unable to diffuse into or out of the cell.
However, since ions, glucose and other big or charged molecules are necessary for the functioning of the cell, there are special means of transport for them.
Integrated into the cell wall there are membrane proteins which serve as canals for transporting specific molecules like ions, glucose, etc.
Answer:
(1) absorption of light, (2) electron transport leading to the reduction of NADP+ to NADPH, (3) generation of ATP, and (4) conversion of CO2 into carbohydrates (carbon fixation).
Explanation:
General Characteristics
Unicellular, absorptive-heterotrophic, photoautotrophic, or chemoautotrophic prokaryotes.
Only one set of genes, usually in a single-stranded loop.
Lack sexual reproduction.
Several chemical types of cell walls.
Lack organelles such as centrioles, eukaryotic flagella, cilia, mitochondria, and chloroplasts.
Some bacteria have a unique type of rotating flagellum.
Photoautotrophic species have chlorophyll, but not chloroplasts (which are organelles that are separated form the surrounding cytoplasm by their own membranes).