Please Help! Science Homework
1. A. What is a compound?

1. B. What is one inorganic compound vital
for chemical reactions in cells? What are four groups
of organic compounds important to living things?

2. A. What three important functions does
water perform in cells?

2. B. Suppose a cell is seriously
deprived of water. How might this lack of water affect
the cell's enzymes? Explain.

3. A. Which of the four types of organic
compounds serve as an energy source for cells?

3. B. Which of the four types of organic
molecules contain the element nitrogen?

3. C. An organic compound contains only the
elements carbon, hydrogen, and oxygen. Could this
compound be a carbohydrate? Could it be a protein?
Explain.

1a - A chemical compound is a chemical substance composed of many identical molecules composed of atoms from multiple elements held together through chemical bonds. atoms of the equal element bonded in a molecule do not form a chemical compound, in view that this would require two different elements

1b - Inorganic compounds are critical within the body and responsible for many simple functions. The primary inorganic compounds are water (H2O), bimolecular oxygen (O2), carbon dioxide (CO2), and a few acids , bases, and salts. The body is composed of 60–75% water.

2a - it helps with chemical reactions, cellular form and size and helps the cell regulate temperature.

2b - The chemical reactions vital for life would no longer occur or slow it down.

3a - carbohydrates, lipids, proteins, and nucleic acids

3b -  Proteins and nucleic acids

3c - A carbohydrate has only Carbon, Hydrogen, and Oxygen, with the hydrogen and oxygen in the ratio 2:1. A protein is made of amino acids. ... So without nitrogen atoms, the compound cannot be a protein.  it can be a carbohydrate, because it contains the elements of a compound. An organic compound contains only the elements carbon, hydrogen and oxygen.

Explanation:

b brown mice / white sand dunes

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.