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Chemistry

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Molly Breitenberg

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โˆ™ 2021-09-30 20:41:57
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Cards in this guide (20)
What is a qualitative observation

A Qualitative Observation is an observation that uses the five senses. sight, smell, hearing, touch, and taste. An example of this would be: "This tree has bright green leaves that have soft bumps on them."

The opposite is a quantitative observation, which is measured in numbers, such as the weight or length of an object. For example, 5 pounds or 100 inches. For instance "The stratosphere begins 40 kilometers above the surface of Earth."

Why do water molecules stick together

This phenomenon is called cohesion. A water molecule can form four hydrogen bonds; the structure is stable and the intermolecular forces are important, explaining the cohesion of water molecules.

Large protein molecules made up of amino acids

Large protein molecules are made up of amino acid molecules. The amino acid molecules join together in a large chain to make a protein molecule.

How are amino acids held together

With peptide bonds

 

If water had a bond angle of 180 degrees instead of 105 degrees would it be polar or nonpolar molecule

All straight molecules are nonpolar, so water would by default be nonpolar.

Is water a molecule or a atom

Water is a molecule. It is made up of atoms of hydrogen and oxygen.

The goal of basic science is

to teach you basic fundimentals of biology

Which kind of electrical charge is found on a hydrogen atom of a polar water molecule

A positive charge, because of a covalent bond with oxygen.

Which part of the body contains bile an enzyme that helps break down lipids

Bile is made in the liver and secreted into the Small intestines to neutralize the acidity of the chyme leaving the stomach. When there is no food entering the small intestines Bile is stored in the Gallbladder until it is needed.

What molecules form protiens when linked together with covalent bonds

Amino acids are the molecules. Dipeptide bonds is the specific name for the covalent bonds.

What substance makes up 75 to 90 percent of every cell in the human body

This substance is called water.

What is one function of a protein macromolecule

Making muscle tissue

What food contains the material needed to build muscle but does not contain the macromolecules that give quick energy

Hamburger

What type of protein is used often to carry other molecules

glubour

What do the four major organic compounds have in common

What do Carbohydrates, Lipids, Nucleic Acid, and Proteins have in common?

They all are Organic compound and contain Carbon.

If water were a nonpolar molecule how would the properties of water be different

water would not be able to climb up inside plants Apex

What is the goal of a statement of the purpose

To indicate what is expected to be accomplished in doing an experiment

According to the graph what condition is best for enzyme activity

25

Pure liquid water has a pH of what

7

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