Questions for Pitzer Test

In a hydrolysis reaction, _____, and in this process water is _____. A) A polymer is broken up into its monomers ... consumed B) A monomer is broken up into its polymers ... produced C) Monomers are assembled to produce a polymer ... consumed D) Monomers are assembled to produce a polymer ... produced E) A polymer is broken up into its constituent monomers ... produced

A) A polymer is broken up into its monomers ... consumed

The monomers that makeup proteins are called __________. A) Amino acids B) Nucleotides C) Polypeptide chains D) Fatty acids

A) Amino acids

What is a negative ion called? A) Anion B) Cation

A) Anion

Channel proteins that facilitate the passage of water molecules through the plasma membrane are called A) Aquaporins B) Hydrolytic proteins C) Osmoregulation proteins D) Osmotic channels

A) Aquaporins

What is the basic unit of matter? A) Atoms B) Molecules C) Organisms

A) Atoms

Which two domains contain organisms that consist of prokaryotic cells? A) Bacteria & Archaea B) Archaea & Eukarya C) Bacteria & Eukarya

A) Bacteria & Archaea

What are the four most important elements that make up 96% of life? A) Carbon, Oxygen, Hydrogen and Nitrogen B) Carbon, Sulfur, Phosphorus and Hydrogen C) Calcium, Sodium, Hydrogen, and Oxygen D) Sodium, Hydrogen, Phosphorous, and Carbon

A) Carbon, Oxygen, Hydrogen and Nitrogen

What is a positive ion called? A) Cation B) Anion

A) Cation

All FIU students love cafesito and croquetas, you are an FIU student therefore you must also love cafesito and croquetas. This is an example of: A) Deductive Reasoning B) Inductive Reasoning C) Metacognition D) Critical reasoning

A) Deductive Reasoning

To combine to monomers, what reaction must occur? A) Dehydration synthesis B) Hydrolysis C) Bond synthesis D) Cellular respiration

A) Dehydration synthesis

Which of the following is the variable that is being measured in a scientific experiment, its data is located on the y-axis? A) Dependent variable B) Independent variable C) Control variable D) Negative variable

A) Dependent variable

Which one of these modifies the products of the ER: A) Golgi apparatus B) Microtubules C) Mitochondria D) Endoplasmic Reticulum

A) Golgi apparatus

What are two weak chemical bonds? A) Hydrogen Bonding and Van der waals forces B) Hydrogen bonding C) Van der waals forces D) None of the above

A) Hydrogen Bonding and Van der waals forces

Process of adding water to break a large molecule (polymer) into smaller molecules (monomers). A) Hydrolysis B) Dehydration synthesis C) Waterization D) Condensation

A) Hydrolysis

Carlos is an amazing learning assistant. Carlos is a learning assistant at FIU, therefore all learning assistants at FIU are amazing. This is an example of: A) Inductive reasoning B) Deductive reasoning C) Fallacy D) Logical reasoning

A) Inductive reasoning

Which of the following is an example of a monomer? A) Monosaccharide B) Polypeptide C) Chromosome D) Starch

A) Monosaccharide

The mechanism of evolutionary adaptation coined by Darwin where over many generations, a higher and higher proportion of individuals in a population will have the advantageous traits. A) Natural selection B) Descent with modification C) Heredity D) Gene expression

A) Natural selection

Composed of sugar, phosphate, and a nitrogenous base: A) Nucleotide B) Ribose C) Adenine D) Pyrimidine

A) Nucleotide

What are three types of endocytosis? A) Phagocytosis, receptor-mediated endocytosis, and pinocytosis B) Exocytosis, receptor-mediated endocytosis, and phagocytosis C) Extracellular endocytosis, phagocytosis, and pinocytosis D) None of the above

A) Phagocytosis, receptor-mediated endocytosis, and pinocytosis

What is embedded in the phospholipid bilayer? A) Proteins B) Water C) Organelles D) Electrolytes

A) Proteins

Which is the definition of cytoplasm? A) Region of the cell between the nucleus and the plasma membrane B) A double membrane surrounding the nucleus C) Where proteins are made D) Houses the cells genetic material in the form of DNA

A) Region of the cell between the nucleus and the plasma membrane

Exocytosis is the kind of transport that A) Requires ATP B) Requires passive transport C) Moves materials into the cell D) Destroys material that is moving out of the cell

A) Requires ATP

What is meant by atomic mass? A) The sum of protons and neutrons B) The sum of protons and electrons C) The sum of neutrons and electrons

A) The sum of protons and neutrons

An experiment where I am measuring how different fertilizers affect plant growth(in height) which would the independent variable. A) The type of fertilizer B) The height of each plant. C) The amount of fertilizer used D) The amount of sunshine the plant receives

A) The type of fertilizer

Water tends to move where A) There is a high concentration of solutes B) There is a low concentration of solutes C) Neither A or B D) Both A and B

A) There is a high concentration of solutes

What is the purpose of facilitated diffusion and ion channels? A) To speed the movement of water and solutes across a membrane down its concentration gradient through the use of a transport protein; to facilitate the diffusion of ions across a membrane B) To facilitate the diffusion of ions across a membrane; to speed the movement of water and solutes across a membrane down its concentration gradient through the use of a transport protein C) To speed the movement of water and solutes across a membrane along its concentration gradient through the use of a transport protein; to facilitate the diffusion of ions across a membrane D) To facilitate the diffusion of ions across a membrane; to speed the movement of water and solutes across a membrane along its concentration gradient through the use of a transport protein

A) To speed the movement of water and solutes across a membrane down its concentration gradient through the use of a transport protein; to facilitate the diffusion of ions across a membrane

T/F Adenine and Guanine are examples of Purines. A) True B) False

A) True

T/F DNA contains the sugar deoxyribose rather than ribose. A) True B) False

A) True

T/F Specific membrane proteins use energy, usually in the form of ATP, to perform active transport. A) True B) False

A) True

T/F This reaction demonstrates hydrolysis. ABC+H2O---->A+B+C A) True B) False

A) True

T/F: The building blocks of nucleic acids are nucleotides. A) True B) False

A) True

T/F: There is a triple bond between Guanine and Cytosine in a strand of DNA. A) True B) False

A) True

The Positive Control is an experimental setup in which a change in the dependent variable is observed/measured according to expectations. A) True B) False

A) True

To be considered acidic, a solution would have to have a pH above or below 7? A) below B) above

A) below

What is the name of a negatively charged atomic particle. A) electrons B) protons C) neutrons

A) electrons

Which cell junction allows for communication between cells? A) gap junction B) tight junction C) desmosomes

A) gap junction

What are the three stages of a cell-signaling pathway? A) 1) Transduction 2) Reception 3) Response B) 1) Reception 2) Transduction 3) Response C) 1) Response 2) Reception 3) Transduction D) 1) Reception 2) Reponse 3) Transduction

B) 1) Reception 2) Transduction 3) Response

If an element has an atomic mass of 60 and an atomic number of 33, then how many neutrons and protons does it have? A) 33, 27 B) 27, 33 C) 35, 25 D) 25, 35

B) 27, 33

The sodium potassium pump is an example of: A) Passive Transport B) Active transport C) Diffusion D) Facilitated diffusion

B) Active transport

What are the four major macromolecules? A) Water, carbon, DNA, RNA B) Carbohydrates, lipids, proteins, and nucleic acids C) Lipids, fats, amino acids, mRNA D) Proteins, tRNA, water, carbs

B) Carbohydrates, lipids, proteins, and nucleic acids

Dr. Pitzer decides to quit his day job of being a professor to be a full-time researcher in botany. In his experiment, he sets aside two groups of the same plant and labels them A and B. Group A receives Dr. Pitzer's growth serum, while group B does not. Dr. Pitzer then measures the growth of both groups after one week. What role does Group B have in the experiment? A) Independent variable B) Control group C) Dependent variable D) Treatment group

B) Control group

Students who have attended exam reviews perform better on exams than the general student population. You attended the exam review, you will perform better on the exam. The following is an example of A) Inductive reasoning B) Deductive reasoning C) Positive reasoning D) Negative reasoning

B) Deductive reasoning

T/F The phopspholipid bilayer contains a hydrophilic tail and a hydrophilic head A) True B) False

B) False

T/F: Transcription is the process in which tRNA forms on a template of DNA. A) True B) False

B) False

In which direction do particles in a solution move during passive diffusion? A) From right to left B) From higher concentration to low concentration C) From left to right D) From lower concentration to high concentration

B) From higher concentration to low concentration

Considering the structure of lipids in the phospholipid membrane, fatty acids have a _______ tail and a _______ head. A) Hydrophilic ; hydrophobic B) Hydrophobic ; hydrophilic

B) Hydrophobic ; hydrophilic

A red blood cell will undergo hemolysis if placed in a ________ solution: A) Hypertonic B) Hypotonic C) Isotonic

B) Hypotonic

Which of the following is the variable that is manipulated in a scientific experiment, its data is located on the x-axis? A) Dependent variable B) Independent variable C) Control variable D) Negative variable

B) Independent variable

Proteins that penetrate the hydrophobic interior of the lipid bilayer are known as: A) Peripheral proteins B) Integral proteins C) Motor proteins D) All of the above

B) Integral proteins

What is electronegativity? A) It is the tendency to push electrons away. B) It is the tendency to pull electrons to itself. C) It is the tendency to donate electrons.

B) It is the tendency to pull electrons to itself.

Which of the following choices correctly describes the composition of the cell membrane? A) Contains only proteins B) Lipids and proteins C) Only lipids D) Lipids and the cytosol

B) Lipids and proteins

Which structure of the cytoskeleton helps support the shape of the cell and is also composed of actin? A) Microtubules B) Microfilaments C) Intermediate filaments

B) Microfilaments

Glycogen, starch and cellulose are examples of: A) Proteins B) Polysaccharides C) Nucleic acids D) Lipids

B) Polysaccharides

Which of the following is NOT one of the domains of life A) Bacteria B) Protozoa C) Eukarya D) Archaea

B) Protozoa

A cell is required to exchange certain molecules and ions with its surroundings. This process is controlled by which special characteristic of the plasma membrane? A) Complete permeability B) Selective Permeability C) Diffusion D) Active transport

B) Selective Permeability

If a drug was created to inhibit the detoxification of foreign substances, what membrane bound organelle would be affected?A) Nucleus B) Smooth ER C) Rough ER D) Golgi Body

B) Smooth ER

What regulates the activity of proteins in a signal transduction pathway? A) Hormones B) The balance between phosphorylation and dephosphorylation by protein phosphatases C) Second messengers D) Cyclic AMP

B) The balance between phosphorylation and dephosphorylation by protein phosphatases

A hypothesis which has been tested many times and never disproved can be called a: A) Proved Hypothesis B) Theory C) Null Hypothesis D) Alternative Hypothesis

B) Theory

The semi-fluid matrix that surrounds organelles in a cell is called the. A) stroma B) cytoplasm. C) ribosome D) nucleoplasm

B) cytoplasm.

What organelle contains hydrolytic enzymes that digest macromolecules? A) Endoplasmic reticulum B) lysosome C) Golgi apparatus D) Vacuole

B) lysosome

The following organelle is not part of the endomembrane system: A) nucleus B) ribosomes C) endoplasmic reticulum D) golgi apparatus

B) ribosomes

An experiment where I am measuring how different fertilizers affect plant growth (In height) which of the following would be control variables. A) Type of fertilizer, amount of fertilizer used B) Type of fertilizer , growth of the plant C) Amount of fertilizer used, sunshine the plant gets D) Sunshine the plant gets, growth of the plant

C) Amount of fertilizer used, sunshine the plant gets

Which functional group is shown below? A) Amine B) Methyl C) Carbonyl D) Carboxyl

C) Carbonyl

A secretory protein from the ER is enveloped in a transport vesicle and departs. Where does it go? A) Trans face of golgi apparatus B) Cell membrane C) Cis face of golgi apparatus

C) Cis face of golgi apparatus

The concept that the organisms living on Earth today are the modified descendants of common ancestors. A) Endosymbiotic theory B) The Big Bang theory C) Evolution D) Descent with modification

C) Evolution

Knowing the composition of the plasma membrane, which molecules would readily pass through the membrane and which molecules would need specific transport proteins? A) Polar molecules and ions; hydrophobic molecules B) All molecules have the same capability to pass through the membrane C) Hydrophobic molecules; polar molecules and ions D) None of the above

C) Hydrophobic molecules; polar molecules and ions

What is the atomic number? A) It tells the number of electrons and protons. B) It tells the number of neutrons. C) It tells the number of protons. D) It tells the number of neutrons and protons.

C) It tells the number of protons.

What two organelles contain their own DNA and their own ribosomes? A) Smooth ER & Rough ER B) Peroxisomes & Lysosomes C) Mitochondria & Chloroplasts D) None of the above

C) Mitochondria & Chloroplasts

What's the true major difference between prokaryotic and eukaryotic cells? A) Prokaryotes have cell walls and eukaryotes do not B) Prokaryotes have cilia and eukaryotes have flagella C) Most Prokaryotes contain their DNA in the nucleoid and eukaryotes contain theirs in the nucleus

C) Most Prokaryotes contain their DNA in the nucleoid and eukaryotes contain theirs in the nucleus

What is the first step in the scientific method? A) Prediction B) Hypothesis C) Observation D) Inquiry

C) Observation

Water movement through the plasma membrane is an example of: A) Active transport by a carrier protein B) Simple diffusion through a carrier protein C) Osmosis D) Cotransport

C) Osmosis

Which of the following DOES NOT require energy to move solutes across its concentration gradient? A) Active transport B) The Sodium-Potassium pump C) Passive transport D) All of the above require energy

C) Passive transport

Tight junctions is the kind of cell to cell interaction that. A) Facilitates communications between two cells B) Acts like spot welds on adjacent cells, holding them together C) Restricts migration of proteins and other substances from migrating from one cell to the other D) Can be also referred to as gap junctions

C) Restricts migration of proteins and other substances from migrating from one cell to the other

A cell has a mutation that makes it unable to appropriately synthesize proteins. Which organelle's function is likely to be impaired by this mutation? A) Plasma membrane B) Chloroplast C) Ribosome D) Mitochondria

C) Ribosome

Which part of the endomembrane system involved with protein synthesis? A) Nucleus B) Smooth ER C) Rough ER D) Golgi Body

C) Rough ER

An animal cell is _______ in a hypertonic solution, while a plant cell is _______ in a hypotonic solution. A) Lysed; flaccid B) Lysed ; plasmolyzed C) Shriveled; turgid D) Shriveled; flaccid

C) Shriveled; turgid

Professor Pitzer put some celery sticks, into a glass of water (95% water). If only osmosis can happen, what will happen to the celery sticks after 10 hours? A) The celery cells will shrivel and it will become more turgid B) The celery cells will swell and burst and it will become more turgid C) The celery cells will swell and it will become more turgid D) The celery cells will shrivel and it will get soft (flaccid)

C) The celery cells will swell and it will become more turgid

Which of the following statements regarding chloroplasts is false?A) Chloroplasts contain DNA B) According to endosymbiosis theory, they were formed by ancestral eukaryote consuming photosynthetic bacteria C) Thylakoids are pigments found within chloroplasts that give plants their green color D) Photosynthesis occurs in the chloroplast

C) Thylakoids are pigments found within chloroplasts that give plants their green color

The movement of molecules from an area of high concentration to an area of low concentration A) solution B) osmosis C) diffusion D) isotonic

C) diffusion

Sugar molecules can enter cells through the process of A) exocytosis. B) osmosis. C) facilitated diffusion. D) ion pumps.

C) facilitated diffusion.

The sodium-potassium pump usually pumps A) potassium out of the cell. B) sodium into the cell. C) potassium into the cell. D) only a potassium and sugar molecule together.

C) potassium into the cell.

How many bonds can Carbon form? A) 1 B) 2 C) 3 D) 4

D) 4

What are factors that contribute to a cell membranes "fluidity" A) Degree of saturation B) Temperature C) Cholesterol D) All of the above

D) All of the above

What is an ionic bond? A) Chemical bond formed between two nonmetals. B) An interaction between oppositely charged atoms. C) An interaction between two similarly charged atoms. D) Chemical bond formed between a metal and non metal.

D) Chemical bond formed between a metal and non metal.

The structures within cells that carry genetic material in the form of DNA. A) Ribosomes B) Spindle fibers C) Lysosomes D) Chromosomes

D) Chromosomes

Which of the following is the LEAST compelling characteristic for life: A) Cellular Organization B) Homeostasis C) Evolutionary Adaptation D) Containing Genetic Material

D) Containing Genetic Material

Which structure processes and modifies proteins for excretion from the cell and name of it's face openings? A) Golgi body; cis & trans B) Golgi body; parallel & anti-parallel C) Endoplasmic Reticulum; cis & trans D) Endoplasmic Reticulum; parallel & anti-parallel

D) Endoplasmic Reticulum; parallel & anti-parallel

Imagine you are examining a polypeptide travelling through a cell. On its way to becoming packaged in a vesicle, you notice that the exit of the vesicle is blocked. Which organelle is keeping the vesicle from exiting, and what part of this organelle is blocked? A) Lysosome - Trans Phase B) Smooth ER- Cis phase C) Rough ER- Cis phase D) Golgi Apparatus - Trans Phase

D) Golgi Apparatus - Trans Phase

Passive transport: A) Requires ATP B) Goes against concentration gradient C) Is seen in the Na/K pump D) Is seen in osmosis

D) Is seen in osmosis

An environment is said to be ________ where there is no net movement of water across the plasma membrane A) Neutral B) Hypotonic C) Hypertonic D) Isotonic

D) Isotonic

Which if the following is TRUE about phagocytosis: A) It helps the cell intake extracellular fluids B) It helps the cell secrete biological molecules C) It is a form of passive transport D) It requires energy

D) It requires energy

. Nucleic acids are chains of 5-carbon sugars linked by which type of bonds with an organic base protruding from each sugar? A) Hydrogen B) Amino C) Phosphate D) Phosphodiester

D) Phosphodiester

Which of the following is FALSE regarding the phospholipid bilayer?A) It is amphipathic B) It is a semipermeable membrane C) Cholesterol stabilizes membrane fluidity D) Phospholipid tails are hydrophilic

D) Phospholipid tails are hydrophilic

Which of the following is an example of a polymer? A) Amino acid B) Intermediate filament C) Fatty acid D) Polysaccharide

D) Polysaccharide

There are several levels of protein structure, which is the most complex protein? A) Primary B) Secondary C) Pentanary D) Quaternary

D) Quaternary

Which of the following structures within the cell is the number 1, 2, and 3 depicted in the image below (in that order)? A) Rough ER, nucleus, lysosome B) Smooth ER, vacuole, mitochondria C) Golgi apparatus, nucleus, rough ER D) Rough ER, nucleus, and mitochondria

D) Rough ER, nucleus, and mitochondria (picture of animal cell)

Which of the following is an example of active transport? A) Carbon dioxide exchanging between muscle and red blood cells B) Water moving out of the small intestine C) Oxygen exchanging between red blood cells and liver cells D) Sodium being reabsorbed into the kidney

D) Sodium being reabsorbed into the kidney

Which characteristic below is not shared between mitochondria and chloroplast? A) Energy conversion B) Infoldings of the inner membrane C) Double membrane D) Undergoes photosynthesis E) Shares a prokaryotic origin via endosymbiosis

D) Undergoes photosynthesis

Placing a plant into a hypertonic environment will A) cause turgor pressure to increase. B) . have no effect. C) cause the plant to take in water. D) cause turgor pressure to decrease.

D) cause turgor pressure to decrease.

Prokaryotic cell movement is attributed to: A) pili B) ribosomes C) cytoskeleton proteins D) flagella E) capsules

D) flagella

In an attempt to replenish body fluids, a patient who is severely dehydrated accidentally receives an IV of distilled water directly into one of his veins. This would probably A) have no unfavorable effect B) have serious, possibly fatal effects as the heart would have too much blood to pump C) have serious, possibly fatal effects because the red blood cells would shrivel D) have serious, possibly fatal effects as red blood cells would burst

D) have serious, possibly fatal effects as red blood cells would burst

A state of biological balance maintained by living organisms is called.... A) phagocytosis B) osmosis C) cytolysis D) homeostasis

D) homeostasis

Which of the following is accurately portrays the levels of biological organization from smallest to largest? A) biosphere, community, population, ecosystem, organisms B) organisms, community, population, ecosystem, biosphere C) community, population, organisms, ecosystem, biosphere D) organisms, population, community, ecosystem, biosphere

D) organisms, population, community, ecosystem, biosphere

Cellulose and starch are examples of: A) monosaccharides B) disaccharides C) lipids D) polysaccharides

D) polysaccharides

You arrive late to a biological seminar. However, just as you enter the room, you hear the speaker referring to the "amino end" and the "carboxyl end" of a macromolecule. Immediately, you know that they are talking about a... A) Carbohydrate B) DNA C) lipid D) protein

D) protein

An amino acid is composed of : A) An amino group B) A carboxyl group C) A single hydrogen D) An R group E) All of the above

E) All of the above

What are some of the functions of membrane proteins? A) Transport B) Enzymatic activity C) Attachment to the extracellular matrix and cytoskeleton D) Signal transduction E) All of the above

E) All of the above

Process of removing water to form a large molecule known as a polymer. A) Dehydration synthesis B) Condensation C) Hydrolysis D) Rehydration synthesis E) Both a and b

E) Both a and b

Small cells function more effectively, because as cells become larger their surface area tovolume ratio. A) stays the same. B) is squared C) increases D) is cubed E) decreases

E) decreases