II and IV are the true statements.
Explanation:
As the glucose molecules are too large it is not allowed by the cell membrane to pass through general diffusion. It requires "facilitated diffusion" to "move in and out" of the cell. In this passive mode of transport, the protein of carrier is used to pass the molecules through the membrane without using the energy of the cell rather the concentrate gradient provides energy to make the molecules move. This gradient allows the molecule to pass from high concentration area of the cell to the low concentration.
Things around us are usually made up of combinations of elements. These combinations are called molecules. Molecules make up combinations called compounds.
Water is an example. There are 2 oxygen atoms and 1 hydrogen atom (oxygen and hydrogen are elements). Together there molecules make up H2O (water) which is a compound.
I hope this makes sense! I'm happy to answer any other questions you might have :)
Definitely C) she did not have enough information to prove her theory to be right.
DNA Mutation is caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes. Thus, the correct answer is option D.
1.DNA Mutations are caused by environmental factors known as mutagens.
2.Types of DNA mutagens include radiation, chemicals, and infectious agents.
3.DNA Mutations may be spontaneous in nature.
