The smallest independently functioning biological unit of an organism is a(n)

• Cell
• Molecule
• Organ
• Tissue

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

A collection of similar tissues that perform a specific function is an

• Organ
• Organelle
• Organism
• Organ system

Tags

NGSS.HS-LS1-2

Metabolism can be defined as the _____________.

• Adjustment by an organism to external and internal changes
• Process whereby all unspecialized cells become specialized to perform distinct functions
• Process whereby new cells are formed to replace worn out cells
• Sum of all chemical reactions in an organism

Which of the following statements about Adenosine Triphosphate (ATP) are true?

• It is mostly created in the mitochondria
• It is made from glucose and oxygen
• It is the primary form of chemical energy used by our bodies
• All of the above

Tags

NGSS.HS-LS1-7

After you eat lunch, your blood glucose will rise signaling the pancreas to release what hormone?

• Glucagon
• Glucose
• Insulin
• Adrenaline

Tags

NGSS.HS-LS1-3

Which of the following is an example of a normal physiological process that uses a positive feedback loop?

• Blood pressure regulation
• Childbirth
• Regulation of fluid balance
• Temperature regulation

Tags

NGSS.HS-LS1-3

Together, just four elements make up more than 95% of the body’s mass.  These include _________.

• Calcium, magnesium, iron, carbon
• Oxygen, calcium, iron, nitrogen
• Sodium, chlorine, carbon, hydrogen
• Oxygen, carbon, hydrogen, nitrogen

A phospholipid ___________.

• Has both polar and nonpolar regions
• Is made up of a lipid bonded to a phosphate
• Is the building block of the cell membrane
• All of the above

In DNA, nucleotides bond together on a sugar-phosphate backbone.  This forms a characteristic shape of DNA known as a(n) ________.

• Beta chain
• Pleated sheet
• Single helix
• Double helix

Uracil ____________.

• Is found in DNA
• Is found in RNA
• Both
• Neither