Biology Review

A scientific theory is

• a well tested explanation

• only speculation

• not testable

• law

A hypothesis is

• result of collaboration

• generated using prior knowledge

• must be tested

• never used to support a theory

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

The process by which organisms keep internal systems within certain limits is called

• evolution

• metabolism

• homeostasis

• photosynthesis

Tags

NGSS.HS-LS1-3

What atoms are bonded in the molecule pictured?

• carbon, hydrogen, oxygen

• helium, oxygen, nitrogen

• calcium, oxygen, hydrogen

• helium, carbon, sodium

Tags

NGSS.MS-PS1-1

The 4 biomolecules are carbohydrates, nucleic acids,...

• enzymes & lipids

• monosaccharides & polysaccharides

• proteins & lipids

• lipids & DNA

Tags

NGSS.MS-LS3-1

Proteins are made of monomers called

• polysaccharides

• glycerol & fatty acids

• amino acids

• nucleotides

Tags

NGSS.MS-LS3-1

How many reactions can a specific enzyme act upon?

• 3

• 2

• 1

• all chemical reactions

The energy needed to start a chemical reaction is

• enzyme energy

• activation energy

• chemical energy

• energy of reaction

One function of a lipid is to

• store glucose

• store energy

• transmit hereditary information

• supply energy for chemical reactions

A molecule having a slightly positive and slightly negative charge is known as

• polarity

• opposite charges

• magic

• really cool