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biology
finals
107
Biology
9th Grade
01/09/2009

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Cards

Term

What are some guidelines for making a scientific table?

Definition

A. titles

B. columns and rows

C. best fit line

Term
What are some guidelines for making a graph?
Definition

A. title

B. vertical and horizontal axis

C. best fit line

Term

What is a hypothesis?  How does a hypothesis turn into a scientific theory?

Definition
  • A hypothesis is a possible explanation based on observations
  • A hypothesis can be tested and a theory cant
Term
Name the three subatomic particles.  Which two are in the nucleous of an atom?
Definition
  • neutrons, protons, electrons
  • protons, neutrons

 

Term
For energy levels, how many electrons fit into the first level?  Second level?  third level?
Definition
  1. 2
  2. 8
  3. 18
Term
Name the three types of chemical bonds?  Put them in order from strongest to weakest.
Definition
  • covalent bond, ionic bond, and hydrogen bond
Term
Describe what an acid and base are.  On a PH scale, label strong acids, weak acids, neutrality, weak bases, and strong bases.
Definition
  • acid- substance forms H+ ions in water
  • base- substance forms OH- ions in water
  1. 0-3 strong acid
  2. 4-7 weak acid
  3. 7 neutral
  4. 7-10 weak base
  5. 11-14 strong base
Term

What do you call a protein that speeds up chemical reactions?

Definition
  • monomers
Term

What chemical reaction forms macromolecules?

 

Definition
  • condensation
Term

What chemical reaction breaks down macromolecules?

Definition
  • hydrolosis
Term
What are the "big 4" macromolecules that make up all life?  Name each one and its monomer[building blocks].
Definition
  1. carbohydrates- monosacchorides
  2. protiens- amino acids
  3. lipids- carboxy head and fatty acid trails
  4. nucleic- nucleotide
Term
What is the formula for total magnification on a microscope?
Definition
  • power of eyepiece times objective lens
Term

What part of the microscope should never be used on high power?

Definition
  • course adjustment
Term

What is a cell?

Definition
  • basic unit of all life
Term

Converts light energy to chemical energy.

Definition
  • chloroplast
Term

Transports protiens.

Definition
  • Endoplasmic reticulum
Term
Modifies, packages and sends protiens to inside and outside cell.
Definition
  • Golgi apparatus
Term
Breaks down waste food and old cell parts using enzymes.
Definition
  • Lysosome
Term
Makes energy for the cell.
Definition
  • Mitochondria
Term

Controls all activities of a cell.

Definition
  • nucleus
Term
Pouch that stores water, food, and some waste.
Definition
  • vacuoles
Term
What structure are found only in plant cell?
Definition
  • cell wall
  • chloroplast
Term

What is the cell membrane made of?

Definition
  • phospholipids
Term
What is selective permeability?  What cell structure does this term describe?
Definition
  • cell membrane
  • allows only ceartin materials to go in and out of cell
Term

what are two types of transport?  What is the difference between the two?

Definition
  • Active transport-uses energy
  • passive transport-no energy
Term
Name the three types of Passive transport?
Definition
  • defussion
  •  faciliated defusion
Term
What is diffusion?
Definition
  • moves small and nonpolar molecules
Term
What is equilibrium?
Definition
  • amount of molecules same everywhere
Term

What term describes the amount of force the vacuole has on the cell membrane and cell wall?

Definition
  • turgor pressure
Term
What is osmosis?
Definition
  • The movement of water from high concentration to low
Term
Describe hypertonic solutions, isotonic solutions, and hypotonic solutions.
Definition
  • hypertonic- H2O moves into cell and cell expands
  • hypotonic- H2O moves out of cell and cell shrinks
  • isotonic- H2O moves into and out of cell and stays normal
Term
Hway happens to a plant under high turgor pressure?  Under low turgor pressure?
Definition
  • Plants stand tall and rigid
  • vacuole not full and shrinks away from cell
Term
What is the difference between endocytosis and exocytosis?
Definition
  • exocytosis- movement of large items into the cell using vacuoles
  • endocytosis- movement of large items out the cell using vacuoles
Term

What does ATP stand for?

Definition
Adenosine triphosphate
Term
How is energy released from ATP?
Definition
  • All the energy is stored in the third phosphate and to release the energy they break off the third phosphate
Term
What is photosynthesis?  What is its complete chemical equation?
Definition
  • process that uses light energy to make chemical energy in the form of glueclose
  • 6CO2+6H2O+sunlight---->C6H12O6+6O2

 

Term
What is chlorophyll?
Definition
  • Pigment that traps light
Term
Why are plants green?
Definition
  • chlorophyll asorbs all light wave lenghts except green
Term
What is celluar respiration?  What is its complete chemical equation?
Definition
  • process that breaks down glueclose to make ATP energy
  • C6H12O6+6O2--->6CO2+6H2O+ATP
Term
What is the total amount of ATP made from cellular respiration?
Definition
  • 38
Term
What does the term "aerobic" mean?  What does the term "anaerobic" mean?
Definition
  • Aerobic- uses oxygen
  • anaerobic- dosnt use oxygen
Term

What is fermentation? Is it aerobic or anaerobic?

Definition
  • Anaerobic
Term
Which one is more effective in the production of energy- aerobic cellura respiration or fermintation?
Definition
  • Aerobic because it makes 38 instead of anaerobic makes 2
Term
What is the longest phase in the cell cycle?
Definition
  • interphase
Term
What is made at the end of mitosis?
Definition
  • Makes 2 new cells (identical)
Term
Nuclear membrane and nucleus fade, centrioles fade and disappear, chromosomes first form.
Definition
  • prophase
Term
Chromosomes line up in the middle of the cell.
Definition
  • Metaphase
Term
Chromosomes split into chromatids and move to opposite end of the cell.
Definition
  • Anaphase
Term

Spindle fibers and centrioles fade, nuclear membrane reapears, cytoplasm splits, two somatic cells are made.

Definition
  • telophase
Term
What is the spliting of the cytoplasm called?
Definition
  • cytokonesis
Term
How is mitosis different in animal and plant cell?
Definition
  • one has centrioles and the other doesn't
  • one forms a cleavage furrow and the other forms a cleavage plate
Term
What is made at the end of mieosis?
Definition
  • four non-identical cells
Term
Crossing over occurs, nuclear membrane and nucleous dissapear, chromosomes first form, centrioles and spindle fibers appear.
Definition
  • Prophase I
Term
Homologus chromosomes line up in middle of cell.
Definition
  • Metaphase I
Term
Homologus chromosomes split into chromatids and move to opposite ends of cell.
Definition
  • Anaphase I
Term
Spindle fibers and centrioles fade and dissapear, cytoplasm splits to form a new cytoplasm.
Definition
  • Telophase I
Term
What do you call the exchange of genetic information between homologus chromosomes( that happens in prophase I)?
Definition
  • crossing over
Term
What is made from spermatogenesis and oogenesis?
Definition
  • four sperm cells
  • one mature egg

 

Term
What is  the difference between asexual and sexual reproduction?
Definition
  • Making of offsprings from one parent and making of offspirng by combining gametes from two percent
Term

What is a zygote?

Definition
  • New cell formed after the joining of sperm and egg
Term
What is heredity?
Definition
  •  passing of traits to offspring
Term
What is genotype?  What is Phenotype?
Definition
  • genetic make up of an organism describing genes
  • the outward appearance of a gene determined by its genotype
Term
What do the terms homozygous and heterozygous mean?  Give an example of each genotype.
Definition
  • When alleles are different in the genotype or hybrid
  • when both alleles in the genotype are alike or purebred
Term
Who is known as the "father of genetics"?
Definition
  • mendel
Term
What term describes when two alleles affect the phenotype of an organism by blending together?
Definition
  • Incomplete dominance
Term
What term describes two alleles affect the phenotype of an organism but without blending?
Definition
  • codominance
Term
What is used to determine the genotype of an unknown individual?
Definition
?
Term

What is trait determined by more than one pair of alleles or more than one gene?

Definition
  • polygenic trait
Term

What do you call traits determined by three more alleles?

Definition
  • multiple allele trait
Term
What genotype are used to represent males and females?
Definition
  • xx for females
  • xy for males
Term
Who is more likely to inherit a sex-linked condition-men or women?
Definition
  • men
Term
Name two recessive sex-linked conditions discussed in class.
Definition
  • colorblindness
  • hemophelia
Term
What is nondisjunction?  How are the gametes different at the end of mieosis if nondisjunction occurs?
Definition
  • chromosomes do not seperate during meiosis
  • have an external chromosome or missing one
Term

Describe the following chromosomal mutations.

Definition
  • inversion-chromosome segment breaks off and reataches in reverse
  • translocation-chromosome piece breaks off and gets added to a different chromosome
Term
What is a carrier- what genotypes used to describe a carrier?  If a trait is sex-linked, who can never be a carrier?
Definition
  • individual who has only one copy of a recessive allele
  • males
  • ?
Term
What do you call a diagram that allows you to follow or trace a trait through several generations?
Definition
  • pedigree
Term
What do you call a picture of your chromosmes that arranges them into pairs and then orders them by size?  Why are these pictures important?
Definition
  • Karyotype
Term
Individuals with three sex chromosomes due to nondijuntion.
Definition
  • klinefelters syndrome
Term

Individuals with mental retardation, muscle weakness, heart defects,  and short statures because they have three chromosomes at the 21st position due to nondisjuntion.

Definition
  • downs syndrome
Term
Individuals who have deteriating of the brain tissue when middle age due to an autosomal gene.
Definition
  • huningtons disease
Term
What are three methods for genetic screening?
Definition
  • blood test
  • amino test
  • chronic vili sampling
Term
What is the identification and manipulation of genes from one organism to a different organism called?
Definition
  • Genetic engineering
Term
What are some practical uses of genetic engineering?
Definition
  • Medicine
  • vacciles
  • food
  • plants
Term
What does DNa stand for?
Definition
  • deoxyribonucleic acid
Term
What does RNA stand for?
Definition
  • ribonucleic acid
Term
Name the three parts of a nucleotide.
Definition
  • sugar
  • phosphate
  • nitrogen base
Term
What are the four bases in DNA?  How do they pair
Definition
  • adenine- thymine
  • guanine-cytosine
Term
What is the difference between a purine and a pyrimidine?
Definition
  • purine-two chemical rings, adenine and gunanine
  • pyrimidies- cytosine, thymine 1 chemical ring
Term

What type of chemical bond forms between sugar and phosphates?

Definition
  • covalent bond
Term
What type of chemical bond forms between nitrogen bases?
Definition
  • hydrogen bond
Term
What is the shape of DNA?  Who are the scientist who discovered it.
Definition
  • helix shape
  • james watson, francis crick
Term
Why is DNA replication refered to as "smi-conservative"?
Definition
  • Each DNA has one old strand and one new starnd
Term
List all the differences between DNA and RNA?
Definition
  • DNA-double stranded RNA-single stranded
  • DNA-double helix RNA-coiled strand
  • DNA-sugar deoxyribose RNA-sugar=ribose
  • DNA-a,c,g,t bases RNA- a,g,c, and u bases
Term
Brings info. in the DNA to ribosomes.
Definition
  • mRNA
Term
Binds to mRNA on one each and has specific amino acid on other end.
Definition
  • tRNA
Term
Makes up ribosomes where protiens are made.
Definition
  • rRNA
Term
What is the name of the process that will make RNA from DNA?
Definition
  • transcription
Term
What is a codon?
Definition
  • three mRNA nucleotides that code for one amino acid
Term
What is the name of the process that makes protiens using RNA?
Definition
  • translation
Term
What do protiens consist of?  What types of bonds link these componets together to make a protien?
Definition
  • amino acids
Term

What is a mutation? is it always harmful?

Definition
  • yes
  • no
Term
Describe the following gene mutations.
Definition
  • point mutation-one base is substituted in DNA
  • frameshift mutation-a base is added or deleted

 

Term

Write the complementary strand to the strand of DNA shown under the process of replication.

 

ATTCCGTCAAA

Definition
TAAGGCAGTTT
Term

Write the complementary strand to the strand of DNA shown under the process of transcription.

 

ATTCCGTCAAA

Definition
UAAGGCAGUUU
Term
Agiven piece of DNA contains 20% adenine.  HOw much thymine should be present?
Definition
20%
Term
A given piece of DNA contains 10% cytosine. How much adenine should ne present?
Definition
40%
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