Bio 1 Exam 1

Carbon, helium, oxygen, and nitrogen are the most common elements found in living things.

• True

• False

Lipids are always nonpolar

• True

• False

What is the smallest unit of life?

• Organelle

• Cell

• Organ

• Organism

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

What is true about all biological macromolecules?

• They all contain carbon

• They all contain oxygen

• They are all hydrophobic

• They are all hydrophillic

Which of these is NOT a part of cell theory?

• Cells come from preexisting cells

• Cells are the smallest unit of life

• All living organisms are composed of one or more cells

• Viruses are alive

All prokaryotic organisms are multicellular

• True

• False

What subatomic particle is negatively charged?

• Magnetron

• Electon

• Proton

• Neutron

Electrons contribute a negligible amount to an element's atomic weight.

• True

• False

Tags

NGSS.HS-PS1-7

What is an energy level describing?

• The distance of an electron from the nucleus

• If an atom is hydrophilic or hydrophobic

• The number of electrons an atom is sharing with another electron

• The distance between atoms

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In its isolated state, elements are uncharged

• True

• False