Bio93-2007-Midterm+1+Key

Bio93-2007-Midterm+1+Key - Practice Questions taken from...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Practice Questions taken from Bio93 Midterm 1 2007---Answer Key 2. Which statement below is false? a. Function gives clues about construction. b. Tissues are the lowest level of structure capable of performing all of the activities of life. c. White blood cells can recognize bacteria and tell them apart from other cell types. d. Organisms exchange substances and energy with their surroundings. e. Energy exchange is the transformation of energy from one form to another. 3. Which of the following units is used to describe 10 -6 m, about the size of a mitochondrion? a. Micrometer b. Millimeter c. Nanometer d. Picometer e. Centimeter 4. Two hydrogens and one oxygen that have formed ____________bonds form a molecule of water. a. non-polar covalent b. polar covalent c. ionic d. hydrogen e. polar ionic 5. Which can pass directly through the lipid bilayer? a. Nonpolar molecules b. Small hydrocarbons c. Oxygen d. Hydrophobic molecules e. All of the above 6. Which is true about a sodium potassium pump? f. Maintains high extracellular potassium and sodium. g. In each cycle, moves two sodiums and three potassiums. h. Is the main electrogenic pump in plant cells. i. Is phosphorylated by ATP. j. All of the above. 7.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Bio93-2007-Midterm+1+Key - Practice Questions taken from...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online