Key Concepts in Biology and Biochemistry

which of these is a carbohydrate that stores energy

strach

An isomer has the same chemical formula, but a different:

shape

the outer electron shell is called

valence shell

which two elements will definitely be in every organic molecule

C & H

Metabolism describe how organism

Obtain and use energy

An isotope has [blank] number of protons and [blank] numbers of neutron

same, different

molecules important to life are called?

biomolecules

which of these is the least inclusive taxonomic rank

species

a theory is backed by

overwhelming evidence

which of these is true of saturated fats

They are solid at room temperature. There are no double bonds between carbons; they pack together very densely

Which of these is NOT a part of a nucleotide?

amino acid

A law can be expressed

as a mathematical equation

what is the fancy scientific name for the sum of all chemical reactions in the body

metabolism

Fitness is the ability to

produce successful offspring

arranges these levels of organization from smallest 1 to largest 4

1. cell 2.organ 3. species 4. biosphere

lipids are soluble in water

false

life begins at what level

cellular

selective pressure can come from

available resources, environment, and predators or pathogens

the monomer of a nucleic acid is called

nucleotide

bases have more of which ion floating around

OH-

Phosphate groups contain hydrogen, oxygen, and

phosphorus

what ion do you find in HIGH concentration in an acid

H+

What does "pH balanced" mean in shampoo?

It has been carefully and precisely formulated to match the pH of your skin.

Making or breaking chemical bonds is referred to as:

A chemical reaction

Biomolecules include Lipids, Proteins, Carbohydrates, and

Nucleic Acids

Which of these is NOT a kind of bond carbon can form?

Quadruple

The pH scale measures the concentration of:

H⁺ ions

Glucose, fructose, and galactose are simple sugar monomers of carbohydrates called:

Monosaccharides

Cells come from other cells — what is this?

cell theory

What rule describes the number of electrons for a full valence shell?

✅ Octet rule

Which describes a protein folded into a pleat or helix?

Secondary structure

Which is NOT a kingdom of the domain Eukarya?

Bacteria