Name: ______
Date: ______
Final Review Biology Honors Fall 2012
Please answer these questions on separate sheets of paper. Answer them fully for ones that require it. Use you notes, books, internet, etc. to find the answers. This is a sampling of types of questions that could be asked on your exam. Study all topics covered thus far. You could go over all old review sheets. Final covers Chapters 1, 2, and 7-12.
A list of safety rules and symbols that should be found in your class binder; Safety symbols are located on the front cover of your textbook.
1.Look at the information given in the table above. What safety precautions would you need to take when working with acetone? ______
2.What is the role of science in exploring the natural world?
- A substance that dissolves in another substance is called a (n)______.
- When water enters the cell, it creates pressure. This pressure is called______.
- Exocytosis and sodium potassium pumps are two forms of ______.
- Active transport systems are a form of cell transport that requires energy from molecules of ______.
- Substances that are changed when they become involved in chemical reactions are called ______, while the new substances that are formed are called______.
- Chemical reactions can be sped up by adding a substance called a (n) ______, which lowers the activation energy required t start the reaction.
- The portion of an enzyme molecule into which a specific substrate can fit is called the ______.
- The bond between ______and ______of an ATP molecule releases the largest amount of energy when broken.
- Avery’s prevention of transformation using DNA destroying enzymes provided evidence that ______molecules function as the hereditary material.
- The name of the five-carbon sugar that makes up a part of the backbone of molecules of DNA is ______.
- Due to the strict pairing of nitrogen base pairs in DNA molecules, the two strands are said to be ______to each other.
- Enzymes called ______are responsible for unwinding the DNA double helix by breaking the hydrogen bonds that hold the complementary strands together.
- Portions of genes that actually get translated into proteins are called ______.
- List the 8 characteristics of living things.
- What are the levels of organization of a Multicellular organism from atom to organism?
- What are the levels of organization of protein structure?
- What are the 4 phases of the cell cycle and what happens in each?
- Mitosis is the division of ____. Cytokinesis is the division of ______.
- What are the 4 phases of mitosis and their characteristics?
- Mitosis produces _____(#) genetically ______cells that are (haploid/diploid).
- Meiosis produces _____(#) genetically ______cells that are (haploid/diploid).
- Mitosis helps a multicellular organism to ______and ______injuriy. Mitosis helps unicellular organisms to ______.
- Meiosis is only used to ______. The fancy word for this is ______.
- How can you tell a TEM from an SEM from an LM micrograph?
- As a characteristic of all living things, homeostasis relates most directly to which of the following biological themes?
- Interacting systems
- Stability
- Evolution
- Scale and structure
- The smallest units that can carry on all the functions of life are called______.
- What is the function of cell membranes?
- Living things
- Require energy to carry on life processes
- Have the ability to reproduce
- Are composed of cells
- All of the above
- A protein that fits into the cell membrane
- Has two polar end sections that bond with water
- Floats in the cell membrane
- Has a nonpolar midsection
- All of the above
- The size to which a cell can grow is limited by its ______ratio.
- All matter in the universe is composed of ______.
- Nonpolar molecules have
- No negative or positive poles
- Both negative and positive poles
- Only a negative pole
- Only a positive pole
- Because carbon has four electrons in its outer energy level,
- It can form bonds with carbon atoms only
- These atoms are naturally chemically stable
- It can react with up to four other atoms to form covalent bonds
- It cannot react with anything other than organic molecules
- Water is important to life because it
- Surrounds all cells
- Is found inside cells
- Influences the shape of cell membranes
- All of the above
- Which of the following is a carbohydrate?
- DNA
- Insulin
- Wax
- Sucrose
- Which organic molecule below is classified as a carbohydrate?
- Amino acids
- CH2 chains
- Nucleotides
- Sugars
- Animals store glucose-containing fragments in the form of ______.
- Which of the following is not an organic molecules
- Carbohydrate
- Ice
- Lipid
- Nucleic acid
- Water is polar because it has ______.
- Lipids are soluble in
- Water
- Salt water
- Oil
- All of the above
- Which organic molecule below is most closely related to lipids?
- Amino acids
- CH2 chains
- Nucleotides
- Sugars
- A molecule shaped like a spiral staircase (double helix) is typical of ______.
- ______Level of structure of proteins includes α-helices and β-pleated sheets.
- Which structure produces vesicles filled with proteins to be exported from the cell? (see diagram)
- Which structure produces ATP? (see diagram)
- The double membrane surrounding the nucleus is called the ______.
- Which of the following pairs contains unrelated items?
- Eukaryotic-amoeba
- Ribosomes- protein
- Cell wall- animal cell
- Mitochondria- energy
- Refer to the illustration above. The structure labeled A is composed of
- Lipid
- Carbohydrate
- Protein
- None of the above
- Function of C: ______
Function of D: ______
Function of A: ______ - A red blood cell is placed in a hypertonicsodium chloride solution. Its cell membraneis impermeable to sodium and chlorine ions;thus, the blood cell will probably
- shrink when water leaves the cell.
- burst when water enters the cell.
- remain unaffected by the solution.
- lose all of its hemoglobin molecules.
- Which of the following can be described asone cell ingesting another?
- phagocytosis
- facilitated diffusion
- plasmolysis
- active transport
- osmosis
- What role is played by cholesterol in theplasma membranes of some animals?
- It enables the animal to remove hydrogenatoms from saturated phospholipids.
- It makes the animal more susceptible tocirculatory disorders.
- It enables the animal to add hydrogenatoms to unsaturated phospholipids.
- It makes the membrane less flexible, so itcan sustain greater pressure from within thecell.
- It enables the membrane to stay fluidmore easily when cell temperature drops.
- Which of the following does not affect the rateof diffusion of a substance?
- Molecular diameter of the diffusing material
- Presence of other substances in the solution
- Temperature of the solution
- Electrical charge of the diffusing material
- Concentration gradient
- If the pH of a solution is increased from pH 3to pH 6, it means that the
- concentration of OH− is 100 times greaterthan it was at pH 3.
- concentration of H+ is 3 times less than itwas at pH 3.
- concentration of OH− is 3 times greaterthan it was at pH 3.
- concentration of H+ is 100 times less thanit was at pH 3.
- concentration of OH− is 1000 timesgreater than it was at pH 3.
- concentration of H+ is 1000 times greaterthan it was at pH 3.
- Which solution has the greatest concentration[H+] of hydrogen ions?
- tomato juice at pH 4
- stomach acid at pH 2
- coke at pH 3
- urine at pH 6
- Round Rock water at pH 9
- When a severely dehydrated patient isbrought to the hospital, an IV of normal saline is started immediately. Distilled water is notused because
- it would cause blood cells to swell andeventually burst. Correct
- normal saline is more economical.
- nutrients are provided by the saline.
- the distilled water might be contaminatedby bacteria.
- it would cause water to leave the cells andthe cells would collapse.
- Phospholipids are molecules that
- Contain phosphorus
- Have long nonpolar “tails” and short polar “heads”
- Combine with water to form the lipid bilayer that makes up the framework of the cell membrane
- All of the above
- The shape of a protein is determined by
- The type and order of its amino acids
- Its size
- Its cell location
- None of the above
- An example of a chemical substance that acts as a messenger is a
- Hormone
- Protein
- Receptor
- Carrier
- Proteins that act like selective passageways in the cell’s membrane are known as ______proteins.
- As a result of diffusion, the concentration of many types of substances
- Always remains greater inside a membrane
- Eventually becomes balanced on both sides of a membrane
- Always remains greater on the outside of a membrane
- Becomes imbalanced on both sides of a membrane
- The process by which water passes into or out of a cell is called ______.
- Refer to the illustration above. The process shown is called
- Osmosis
- Facilitated diffusion
- Active transport
- Diffusion
- Diffusion takes place
- Only through a lipid bilayer membrane
- From an area of low concentration to an area of high concentration
- Only in liquids
- From an area of high concentration to an area of low concentration
- Sugar molecules can enter cells through the process of
- Exocytosis
- Facilitated diffusion
- Osmosis
- Gated channels
- Ridding the cell of material by discharging it from sacs at the cell surface is called ______.
- Molecules that are too large to be moved through the membrane can be transported into the cell by
- Osmosis
- Endocytosis
- Lipid carriers
- Diffusion
- Most of the energy used by the life on Earth comes from ______.
- The energy that is stored in food molecules and used by organisms
- Resides in the nucleus
- Is equally distributed among all the atom’s electrons
- Is held primarily by electrons shared by carbon and hydrogen atoms
- Comes from protons orbiting the nucleus
- Refer to the illustration above. Which graph illustrates what happens during an exergonic/exothermic reaction?
- Graph “A”
- Graph “B”
- Both graphs; they each show a different stage of an exergonic reaction
- Neither graph shows an exergonic reaction.
- All of the activities occurring within cells
- Are driven by chemical reactions
- Result from the random mixing of enzymes.
- Cause the fluids in he cell to bubble and fizz
- Result in the production of enzymes
- Refer to the illustration above. Reaction “1” in the graph
- Is an energy-storing reaction
- Requires a greater activation energy “2”
- May use the same initial reactant condition needed to form Product “B”
- All of the above
- Refer to the illustration above. Reaction “3” in the graph
- Probably occurred in the presence of a catalyst
- Requires a greater activation energy than Reaction “2”
- Is the same as Reaction “1”, but faster
- Takes longer than Reaction “2”
- The molecule on which an enzyme acts is called a(n) ______.
- Enzymes may promote a chemical reaction by
- Increasing the activation energy required for the reaction to take place
- Putting a strain on a particular chemical bond in a molecule
- Holding two substrates near each other
- Both B and C
- Enzymes
- Are able to heat up molecules so that they can react
- Provide CO2 for chemical reactions
- Are biological catalysts
- Absorb excess heat so that reactions occur at low temperatures
- A cell contains
- Thousands of different kinds of enzymes, each promoting a different chemical reaction
- One kind of enzyme that promotes thousands of different chemical reactions
- Approximately 100 kinds of enzymes, each promoting a different chemical reaction
- One enzyme that promotes photosynthesis and one enzyme that promotes cellular respiration
- Changing the course or pathway of a chemical reaction so that it requires less activation energy
- Is a violation of the laws of nature
- Requires higher temperatures than those found within cells
- Occurs only when reactants are quickly added to the reaction mixture
- Is accomplished by the action of catalysts on reactants
- Cells use energy to
- Move about
- Change their shape
- Transport food and expel wastes
- All of the above
- The three parts of ATP include ______, ______and ______
- When living cells break down molecules, energy is
- Stored as ADP
- Stored as ATP
- Released as heat
- Both b and c
- When a phosphate is transferred from an ATP molecules to another molecule,
- A substantial amount of energy is transferred as well
- An enzyme is formed
- The ATP molecule undergoes an endergonic change
- Activation energy is increased
- Factors that allow a cell to control when an enzyme is active include
- Presence or absence if “signal” molecules
- Concentrations of specific enzymes
- Occurrence of feedback inhibition
- All of the above
- Factors that may affect the ability of an enzyme to work efficiently include
- Temperature
- pH
- concentration of substrate
- all of the above
- The English physician Ronald Ross wanted to try to find the cause of malaria. Based on his observation, Dr. Ross suggested that the Anopheles mosquito might spread malaria from person to person. This suggestion was a
- Predictionb. hypothesisc. theoryd. scientific “truth”
- Dr. Ross knew that the parasite Plasmodium was always found in the blood of malaria patients. He thought that if the Anopheles mosquitoes were responsible for spreading malaria, then Plasmodium would be found in the mosquitoes. This idea was a
- Predictionb. hypothesisc. theoryd. scientific truth
- The process whereby plants capture energy and make complex molecules is known as
- Homeostasisb. evolutionc. photosynthesisd. development
- While energy absorbed by one type of chlorophyll molecule is used to form molecules of ATP, electrons from a second kind of chlorophyll molecule are used
- In forming molecules of NADPH
- To migrate to another proton pump
- In the second kind of thylakoid
- As a fuel for forming another chlorophyll molecule
- Suspended in the fluid stroma of chloroplasts are
- Organelles called eukaryotes
- Numerous mitochondrial membranes
- Small coins that provide energy
- Stacks of thylakoid membranes
- When photons of light strike an object, the light may be
- Reflectedb. absorbedc. transmittedd. all of the above
- Refer to the illustration above. Taken together, these graphs demonstrate that
- Photosynthesis is independent of environmental influences
- Increases in light intensity cause increases in temperature
- As the rate of photosynthesis increases, the temperature of the plant eventually decreases.
- The rate of photosynthesis is affected by changes in the plant’s environment
- When glycolysis occurs, a molecules of glucose splits into two molecules of ______.
- The name of the process that takes place when organic compounds are broken down in the absence of oxygen is ______.
- Using radioactive tracers to determine the interactions of bacteriophages and their host bacteria, Hershey and Chase demonstrated without question that
- Genes are composed of protein molecules
- DNA and proteins are actually the same molecules located in different parts of the cells
- Bacteria injected their DNA into the cytoplasm of bacteriophages
- Genes are made up of DNA
- Pigments are the color of light they
- Reflect
- Reject
- Absorb
- Portray
- 3 things produced by the light dependent reaction are: ______, ______, and ______.
- 3 things produced by the Calvin cycle are: ______, ______, and ______.
- How are the reactions of photosynthesis and cellular respiration related?
- Molecules of DNA are composed of long chains of ______(Monomers).
- A nucleotide consists of ______, a ______and a ______.
- Purines and pyrimidines are
- Bases found in amino acids
- Able to replace phosphate groups from defective DNA
- Names of specific types of DNA molecules
- Bases found in nucleotides
- The scientists credited with establishing the structure of DNA are
- Avery and Chargaff
- Hershey and Chase
- Mendel and Griffith
- Watson and Crick
- X-ray diffraction photographs by Wilkins and Franklin suggested that
- DNA and RNA are the same molecules
- DNA is composed of either purines or pyrimidines, but not both
- DNA molecules are arranged as a tightly coiled double helix
- DNA and proteins are the same basic structure
- Watson and Crick built models that demonstrated that
- DNA and RNA have the same basic structure
- The DNA helix is held together by hydrogen bonds
- Guanine forms hydrogen bonds with adenine
- Thymine forms hydrogen bonds with cytosine
- The noncoding portions of DNA that are separated from the portions of DNA actually used during transcription are called
- Mutonsb. exonsc. intronsd. exposons
- A hypothesis is
- A definite answer to a given problem
- A testable possible explanation of an observation
- A proven statement
- A concluding statement
- Refer to the illustration above. Alfred Wegener’s original idea that continents drifted apart was a(n)
- Observation
- Hypothesis
- Theory
- Completely true assertion
- Refer to the illustration above. Fossils, the shape of continents, and rock evidence
- Are observations that support the idea that continental drift occurred
- Are hypotheses that support the idea of continental drift
- Come from control experiments on continental drift
- None of the above.
- Scientists usually design experiments
- With a good idea of the expected experimental results
- Based on wild guesses
- In order to develop new laboratory tools
- All of the above
- Biology is the study of ______.
- Which of the following is NOT found in DNA?
- Adenineb. cytosinec. uracild. none of the above
- RNA is chemically similar to DNA except that its sugars have an additional oxygen atom, and the base thymine is replace by a structurally similar base called
- Uracilb. alaninec. cytosined. codon
- Each of the following is a type of RNA except
- Carrier RNAb. messenger RNAc. ribosomal RNAd. transfer RNA
- Each nucleotide triplet in mRNA that specifies a particular amino acid is called a
- Mutagenb. codonc. anticodond. exon
- During translation, the amino acid detaches from the transfer RNA molecule and attached to the end of a growing protein chain when
- The ribosomal RNA anticodon binds to messenger RNA codon
- The transfer RNA anticodon binds to messenger RNA codon
- A “stop” codon is encountered
- The protein chain sends a signal through the nerve cells to the brain
- A substance that causes cancer is known as a
- Tumorb. carcinogenc. mutationd. metastasis
- The passing of traits from parents to offspring is called
- Geneticsb heredityc. developmentd. mutation
- The code contained in a particular gene results in the production of
- A variety of types of chemicals
- A specific proteins
- Certain types of DNA molecules
- Particular carbohydrate molecules
- Crossing over
- Is a mutation
- Occurs during Meiosis I
- Created genetic diversity
- Both band c
- All of the above
- The passing of traits from parents to offspring is called
- genetics. b) heredity. c) development. d) maturation.
- The difference between Mendel's experiments in the area of heredity and those done by earlier researchers was that
- earlier researchers did not have microscopes.
- earlier researchers used detailed and numerical procedures.
- Mendel expressed the results of his experiments in terms of numbers.
- Mendel used pea plants with both purple and white flowers.
- The scientific study of heredity is called
- meiosis. b) crossing -over. c) genetics. d) pollination.
- The phenotype of an organism
- represents its genetic composition.
- reflects all the traits that are actually expressed.
- occurs only in dominant pure organisms.
- cannot be seen.
- Mendel's finding that the inheritance of one trait had no effect on the inheritance of another became known as the
- law of dominance. C) law of separate convenience.
- law of universal inheritance. d) law of independent assortment.
- An individual heterozygous for a trait and an individual homozygous recessive for the trait are crossed and produce many offspring that are
- all the same genotype. c) of three different phenotypes.
- of two different phenotypes. d) all the same phenotype.
- If cross pollinating a red snapdragon and white snapdragon produce all pink snapdragons, what is the percent chance a white flower will result from the self pollination of one of the pink offspring?
What kind of inheritance is this?