Find study materials for any course. Check these out:
Browse by school
Make your own
To login with Google, please enable popups
To login with Google, please enable popups
Don’t have an account?
To signup with Google, please enable popups
To signup with Google, please enable popups
Sign up withor
1. What type of bond joins carbon to nitrogen?
a. Hydrogen bond
b. Ionic bond
c. Polar covalent bond
d. Nonpolar covalent bond
e. Peptide bond
2 How would you classify an amino acid with an R- group containing OH?
3 How are all amino acids similar?
a. It has at least one COOH group
b. It has at least one NH2 group
c. It has at least one NH group
d. All of the aboveA & B only
4 An amino acid with a carbon ring on it will have what property as a direct result of that functional group?
a. It will be able to act as a proton donor
b. It will be able to form hydrogen bonds
c. It will be able to transmit prion-based disease
d. It will have nonpolar characteristics
e. It will form a glycoprotein on the outer surface of the cell
5 A single-celled Paramecium has non-functioning cilia. Which of the following is likely to be true?
a. its microtubules aren’t working
b. its Golgi Apparatus is out to lunch
c. its nucleus has been invaded by Martians
d. its microfilaments aren’t working
6 A protein is modified by attaching a chain of glucose molecules to it. Where will this protein likely need to be located in order to function properly?
a. The outer surface of the nuclear membrane
b. The outer surface of the cell membrane
c. In the inner surface of the mitochondria
d. The inner surface of the nucleus
e. The inner surface of the cell membrane
7 All of the three types of lipids discussed in class share what common feature?
a. Have fatty acid chains attached to glycerol
b. All are found in equal numbers on the inner and outer leaflet of the membrane
c. All are amphipathic
d. They all have the same functione.None of the above
8 Lipids that are combined with short chains of glucose molecules have what function?
a. Cellular communication
b. Energy storage
c. Genetic information storage
d. Structure of cell walls
e. Transport across a cell membrane
9 What bonds are required to maintain the structure of a DNA molecule?
a. Sugar-phosphate bonds and hydrogen bonds
b. Peptide bonds and phosphodiester bonds
c. Hydrogen bonds and peptide bonds
d. Ionic bonds and hydrogen bonds
e. Phosphodiester bonds and ionic bonds
10 Which of the following RNA sequences would bond to this DNA strand: AATAG?
11 What do viruses have that prions don’t have?
a. Genetic material
d. A cell wall
e. A cell membrane
12 Which of the following is true of all types of prions?
a. They cause Lyme disease
b. They are unsaturated fats but are solid at room temperature
c. They sometimes have a phospholipid envelope
d. They function to remove lipids from nerve cells
e. They are found in neurons
1.3 How are trans fats similar to saturated fats?
a. They have carbon-carbon double bonds
b. They are liquid at room temperature
c. They don’t go softer or harder in response to temperature changes
d. They are amphipathic
e. They have fatty acid chains that are mostly straight, not bent
1.4 Chitin, peptidoglycan, and cellulose all:
a. Are found in cell membranes
b. Are made by plants
c. Function as energy storage molecules
d. Have the same monomer: glucose
e. Help cells maintain optimal fluidity in a changing environment
1.5 The protein that acts as a receptor for the hormone estrogen is made up of two peptide chains called esr-1 and esr-2. How esr-1 and esr-2 fit together is what level of protein structure?
16 How are phospholipids similar to triglycerides?
a. They are both amphipathic
b. They both have three fatty acid chains
c. They both have a four-ringed structure
d. They are both found in cell membranes
e. They both have a glycerol backbone
17. You conduct an experiment on a human parasite and discover an odd organelle inside the cells. The organelle appears to function in detoxifying the cell, making it similar to which of these?
18 How are membrane lipids in bacteria and archaea similar?(we are accepting all answers as correct)
a. The phosphate group is similar in both types of organisms
b. The linkage between the hydrocarbon tails and the glycerol is similar
c. The hydrocarbon tails are the same
d. The way the lipids are arranged into a membrane is the same
e. No similarities exist between membrane lipids of bacteria and archaea
19 What part of a cell membrane is fluid and can move from side to side, past other components of the membrane?
c. Nucleic acids
d. All of the above
e. A & B
20 Consider three types of transport across a membrane: I) simple diffusion, II) osmosis, and III) facilitated diffusion. Which of these are forms of passive transport?
b. II and III
c. I and III
d. I and II
e. I, II, and III
21. In comparing outdoor soil bacteria you take two samples, one in the summer and the other in the winter. Compared to the sample collected in winter, the membranes of the bacteria collected in the summer will:
a. Have more phospholipids with saturated and long-chain fatty acids
b. Have more phospholipids with unsaturated and long-chain fatty acids
c. Have more phospholipids with saturated and short-chain fatty acids
d. Have more phospholipids with unsaturated and short-chain fatty acids
e. Have membrane phospholipids that are not different than the other sample
22 A cell with a membrane that is permeable only to water is placed in a hypotonic solution. Which of the following is true?
a. Water will move into the cell
b. Na+ will move into the cell
c. Water will move out of the cell
d. Na+ will move out of the cell
e. Water and Na+ will move into the cell
23 Having a large number of peroxisomes is helpful if you...
a. drink too much Pepto Bismol
b. eat too much in one sitting
c. don’t drink enough water
d. consume a large amount of alcohol
24. Secondary active transport is used in a cell. Which of the following is most likely true for the transport proteins?
a. they transport only one ion and it goes against its concentration gradient
b. they transport two different ions and the both go against their concentration gradient
c. they transport only one ion and it goes down its concentration gradient
d. they transport two different ions and they both go down their concentration gradient
e. they transport two molecules; one goes down its concentration gradient and the other goes against its concentration gradient.
25 Which structure inside a cell is responsible for digesting old organelles?
a. The nucleus
b. The lysosome
c. The smooth ER
d. The Golgi
e. The endosome
26 How can a cell target specific molecules for endocytosis?
a. Through receptors on the cell surface that bind to desired molecules
b. Through processing of the vesicle—unwanted molecules are rejected and exported while desired products are retained
c. Through the fact that carrier proteins are highly selective
d. Through the fact that channel proteins are highly selective
e. Because of the ability of the membrane to change its fluidity
27 Assuming a large eukaryotic cell and a much smaller bacterial cell have the same energetic needs, which one will most easily be able to meet those needs?
a. The bacterium because it is smaller
b. The eukaryotic cell because it is smaller
c. The bacterium because it has fewer internal membranes and no nucleus
d. The eukaryotic cell because of the complex interior with several types of specialized organelles
e. The bacterium because its genome is smaller and forms a circular molecule
28 If you discover a new cell type and the only thing you know about it is that it has a cell wall, what can you determine from this information?
a. It is a bacterial cell
b. It is not a eukaryotic cell
c. It is a fungal cell
d. It is not an animal cell
e. It probably has an extensive cytoskeleton
29 Endosymbiosis explains the origin of which organelles?
a. All of them
b. Mitochondria and chloroplasts
c. The nucleus and ER
d. Rough ER and Smooth ER
e. Lysosomes and transport vesicles
30 The cristae within a mitochondrion do which of the following?
a. increase volume
b. increase surface area without increasing volume
c. decrease volume
d. increase surface area and volume
31 During the synthesis and export of secreted proteins, a cell experiences trouble transporting vesicles from the rough ER to the Golgi. What is a good explanation for this malfunction?
a. Actin filaments are defective
b. Microtubules are not working properly
c. The smooth ER is defective
d. Ribosomes on the rough ER are mutated and nonfunctional
e. Enzymes that modify proteins in the lumen of the Golgi are nonfunctional
32 What molecules deteriorate and result in wrinkles in your skin?
33 If a mutation occurred that made it difficult for a cell to assemble amphipathic molecules, what would be a likely result?
a. difficulty building the cell membrane
b. trouble transcribing DNA
c. Improper lysosome acidity
d. sub-optimal cytosol acitity
e. difficulty manufacturing ATP
34 Which part of the cytoskeleton displays dynamic instability?
a. Intermediate filaments only
b. Intermediate filaments and microtubules
c. Microtubules and microfilaments
d. Microfilaments and intermediate filaments
e. Microfilaments only
35 You discover an organism new to science in the Arctic ice. With your primitive equipment, you can only determine that the organism is multicellular. Which of the following is most likely?
a. it’s bacterial
b. it’s archaeal
c. it’s prokaryotic
d. it’s eukaryotic
Sign up for free and study better.
Get started today!