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Biology Chapter 6 (P1)
Test Description: More detailed assessment of chapter 6 (Holt, Rinehart and Winston)
Instructions: Answer all questions to get your test result.
1) Which of the below is not part of the cell theory?
A
All cells are from pre-existing cells
B
All living things are made of cells
C
Cells make up the basic unit structure and function in all living things
D
Cells are tiny compartments first discovered by Robert Hooke
2) Cytoplasm: the region between the nucleus, membrane, and other organelles in fluid
A
Plasma membrane: a thin outer covering that acts as a boundary and regulates traffic
B
Cell wall: protects plants and maintains shape
C
Nucleus: houses DNA
D
Cytoplasm: the region between the nucleus, membrane, and other organelles in fluid
3) What is the main difference between prokaryotes and eukaryotes?
A
Eukaryotes are 10-100 nm, but prokaryotes are 1-10 nm
B
Eukaryotes'
C
Eukaryotes include fungi, plants, and animals, while prokaryotes include bacteria and archaea
D
Eukaryotes have nuclei and other main organelles, but prokaryotes don't
4) Which of the below is false of the phospholipid bilayer?
A
Allows some molecules to cross (nonpolar) but not others (ions)
B
Made of a phosphate and hydrophilic head while its tail is hydrophobic and points inwards
C
None of the above
D
They're made of glycerol and 2 fatty acids (not 3, or it would be (Fat)
5) Membrane proteins have the role of --
A
Transport proteins (faciliated diffusion)
B
Send chemical signals
C
All of the above
6) Which process diffuses molecules across the membrane purely through the molecules' movement?
A
Osmosis
B
Passive transport
C
Exocytosis
D
Active transport
7) Which process is described: large particles in cell -- vesicles -- fuse with membrane -- spill contents outside
A
Passive transport
B
Exocytosis
C
Osmosis
D
Active transport
8) Which of the processes below is a passive transport of water?
A
Exocytosis
B
Active transport
C
Osmosis
D
Passive transport
9) Which process requires energy (ATP) to oppose the diffusion flow and move molecules across the membrane?
A
Osmosis
B
Active transport
C
Exocytosis
D
Passive transport
10) In osmosis, which would result in a healthy plant cell?
A
Hypotonic solution (more solvent than solute)
B
Hypertonic solution (more solute than solvent)
C
None of the above
D
Isotonic (equal amount of solute and solvent)
*select an answer for all questions
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