Biology #1 / Biochem and The Cell

What is the base unit for mass in the metric system?

• Pound

• Gram

• Milligram

• Kilogram

What is the atomic number equal to?

• Number of isotopes

• Number of protons

• Number of electrons

• Number of neutrons

What type of bond involves the transfer of electrons between a metal and a nonmetal?

• Polar bond

• Hydrogen bond

• Covalent bond

• Ionic bond

What is the primary sequence of amino acids responsible for in a protein?

• Function and identity

• Destination of the protein

• Organism type

• Polarity of the protein

Which type of nucleic acid contains genetic material and is usually double-stranded?

• Messenger RNA

• Ribonucleic acid

• Transfer RNA

• Deoxyribonucleic acid

What is the main component of cell membranes?

• Proteins

• Cholesterol

• Phospholipid bilayer

• Glycoproteins

Which type of transport relies on the concentration gradient between the inside and outside of the cell?

• Active transport

• Passive transport

• Endocytosis

• Osmosis

What is the process of movement of larger materials into a host cell called?

• Pinocytosis

• Endocytosis

• Phagocytosis

• Exocytosis

What type of cell communication involves the movement of material out of a cell?

• Endocrine signaling

• Synaptic signaling

• Exocytosis

• Direct contact

What are the channels between connecting plant cells called?

• Synaptic junctions

• Plasmodesmata

• Cell junctions

• Gap junctions