Life Processes

What is interstitial fluid?

• The fluid inside of cells

• Part of the intracellular fluid (ICF)

• The fluid in the bloodstream

• 80% of extracellular fluid (ECF)

What do cells use macromolecules for?

• Making electrolytes

• Covalent bonding

• Cellular respiration

• Passive diffusion

Which of the following cell structures modifies proteins, then re-packages them into vesicles, for export out of the cell?

• Mitochondria

• Endoplasmic reticulum

• Nucleus

• Golgi apparatus

From the options below, which is the most effective way to study?

• Focus for a couple of hours at a time, with no breaks

• Have short, frequent study sessions

• Re-write and highlight lecture notes

• Leave most of your study for the last week of lectures so you know where to focus

Which of the following molecules is formed by ionic bonds?

• NaCl

• H₂O

• Glucose

• KCl

What does it mean if an element is reactive?

• It has an incomplete outer ring of electrons

• It has a complete outer ring of electrons

• It has an odd number of protons

• It has more electrons than protons

Why would an ion have a negative charge (e.g. Cl^-)?

• It has an incomplete outer ring of electrons

• It has lost an electron

• It has gained an electron

• It has more electrons than protons

Why are sodium and chloride ions attracted to each other?

• both sodium and chloride ions are positive

• Opposite charges attract

• sodium ions are smaller than chloride ions

• Because of diffusion

Which of the following is a characteristic of water?

• It is formed by polar covalent bonds

• It is an electrolyte

• It can break ionic bonds in a solution

• It is a solvent for many substances

Which statement is true?

• Electrolytes dissolve in water

• Salt is an electrolyte

• Water is an electrolyte

• Electrolyte means 'loosened electricity'