Principles Of Biology I - Exam II - Chapters 6, 7, 8
Pittsburg State University Principles of Biology I Fall, 2010 - Exam II - Chapters 6, 7, 8 Dr. Wu
- 1.What is the minimum resolution of a Light Microscope (LM)?
- A.
20 nm
- B.
20 mm
- C.
20 µm
- D.
200 nm
- E.
200 µm
- 2.Which type of microscope focuses a beam of electrons onto the surface of a specimen, providing images that look 3-d?
- A.
Transmission Electron Microscope
- B.
Scanning Electron Microscope
- C.
Light Microscope
- D.
Fischer Price Microscope
- E.
None of the above
- 3.Which type of microscope focuses a beam of electrons through a specimen, and are used mainly to study the internal structure of cells?
- A.
Transmission Electron Microscope
- B.
Scanning Electron Microscope
- C.
Light Microscope
- D.
Fischer Price Microscope
- E.
None of the above
- 4.What cell types are eukaryotic?
- A.
Bacteria, fungi, protists
- B.
Bacteria and archaea
- C.
Archaea and fungi
- D.
Protists, fungi, animals and plants
- E.
None of the above.
- 5.What cell types are prokaryotic?
- A.
Bacteria, fungi, protists
- B.
Bacteria and archaea
- C.
Archaea and fungi
- D.
Protists, fungi, animals and plants
- E.
None of the above.
- 6.Prokaryotic cells:
- A.
Do not have a nucleus
- B.
Lack membrane-bound organelles
- C.
Contain DNA in a nucleus that is bounded by a membranous nuclear envelope
- D.
Have membrane-bound organelles
- E.
Contain DNA in an unbound region called the nucleoid
- 7.Eukaryotic cells:
- A.
Contain DNA in a nucleus that is bounded by a membranous nuclear envelope
- B.
Contain DNA in an unbound region called the nucleoid
- C.
Lack membrane-bound organelles
- D.
Have membrane-bound organelles
- E.
Do not have a nucleus
- 8.A phospholipid has a hydrophobic head and hydrophilic tails.
- A.
True
- B.
False
- 9.What types of cellular organelles are present in animal cells but not plant cells?
- A.
Lysosomes
- B.
Nucleus
- C.
Mitochondrion
- D.
Cytoskeleton
- E.
Golgi apparatus
- F.
Flagella
- G.
Plasmodesmata
- H.
Centrioles
- 10.What types of cellular organelles are present in plant cells but not animal cells?
- A.
Chloroplasts
- B.
Golgi apparatus
- C.
Plasmodesmata
- D.
Mitochondrion
- E.
Centrioles
- F.
Central vacuole and tonoplast
- G.
Cell wall
- 11.What cellular organelle is/are the genetic library(ies) and control center(s) of the cell?
- A.
The Cytoskeleton
- B.
Mitochondria & Chloroplasts
- C.
The Endomembrane System
- D.
Ribosomes
- E.
Nucleus
- 12.What cellular organelles are the protein factories of the cell?
- A.
Lysosomes
- B.
The Golgi Apparatus
- C.
Vacuoles
- D.
Ribosomes
- E.
Mitochondria & Chloroplasts
- 13.What cellular organelle consists of microtubules, actin and intermediate filaments?
- A.
The Cytoskeleton
- B.
Mitochondria
- C.
The Endomembrane System
- D.
Ribosomes
- E.
Extracellular structures
- 14.What cellular organelle is(are) the shipping and receiving center(s) for the cell?
- A.
Lysosomes
- B.
Vacuoles
- C.
Endoplasmic Reticulum
- D.
The Golgi Apparatus
- E.
Actin
- 15.The nuclear envelope consists of what two membranes?
- A.
Lamina
- B.
Chromosomes
- C.
Chromatin
- D.
Pores
- E.
Nucleoli
- 16.Chromatin condenses to form discrete _______________?
- 17.What is the primary function of nucleoli?
- A.
Enclose the nucleus, separating it from the cytoplasm
- B.
Chromosome secretion
- C.
Genetic material formation
- D.
Ribosome synthesis
- 18.Where can ribosomes be found in the cell?
- A.
Mitochondria
- B.
Cytosol (free)
- C.
The Golgi Apparatus
- D.
Outside of the endoplasmic reticulum or nuclear envelope (bound)
- 19.What are some characteristics and functions of smooth ER (endoplasmic reticulum)?
- A.
Synthesize lipids
- B.
Membrane factory for the cell
- C.
Metabolize carbohydrates
- D.
Distributes transport vesicles
- E.
Stores calcium
- F.
Detoxifies poison
- G.
Has bound ribosomes, studding its surface
- H.
Lacks ribosomes
- 20.What are characteristics and functions of rough ER (endoplasmic reticulum)?
- A.
Synthesize lipids
- B.
Membrane factory for the cell
- C.
Metabolize carbohydrates
- D.
Distributes transport vesicles
- E.
Stores Calcium
- F.
Detoxifies poison
- G.
Has bound ribosomes, studding its surface
- H.
Lacks ribosomes
- 21.Endoplasmic reticulum (ER) accounts for what percentage of the total membrane in many eukaryotic cells?
- A.
>20%
- B.
>30%
- C.
>40%
- D.
>50%
- E.
>60%
- 22.Smooth ER and Rough ER are the two distinct regions of endoplasmic reticulum (ER).
- A.
True
- B.
False
- 23.What are functions of the Golgi Apparatus?
- A.
Metabolizes carbohydrates
- B.
Stores calcium
- C.
Modifies products of the endoplasmic reticulum (ER)
- D.
Synthesizes the production of proteins
- E.
Manufactures certain macromolecules
- F.
Sorts and packages materials into transport vesicles
- 24.The trans face is the "receiving" side of the Golgi apparatus and the cis face is the "shipping" side of the Golgi apparatus.
- A.
True
- B.
False
- 25.Sacs of flattened membranous sacs are called ______________?
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