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58 Cards in this Set
- Front
- Back
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What is Photosynthesis?
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Photosynthesis is the manufacturing process in which plants use the raw materials carbon dioxide and water plus energy to make food.
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How can photosynthesis be detected?
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By the uptake of CO2. In an environment where photosynthesis takes the CO2 should decrease.
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Carbon dioxide from your breath reacts with water to form what acid?
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Carbonic Acid
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CO2 + Water = Creates?
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Carbonic Acid
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In this experiment what solution did we use to test the pH level in the tap water?
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Phenol red dye
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When phenol red dye turns Yellow the...
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the pH is below 7 making the water and acid.
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When the phenol red dye is red it is....
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a pH of 7- Nuetral
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what is the control in the phenol red dye experiment?
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The control would be the the tube placed in the dark. If the water remains Yellow, O2 was not released by the process of photosynthesis.
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The experiment in the Phenol Dye Lab is?
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The Tube that is placed in the sun for about 30-45 minutes. If the color of the dye turns from yellow to red then O2 was released and photosynthesis took place.
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What is the product of Photosynthesis?
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O2
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How did we measure oxygen production?
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Manometer
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What is the control in the manometer lab?
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The control is the bottle of distilled water, no photosynthesis is taking place. Therefore, there should be no product of O2.
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When an aquatic plant is radiated with light, and the oxygen produced moves the fluid in the "V" shaped channel, the increase in volume of the syringe that restores the fluid to the original level is,______________
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the amount of oxygen produced.
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based on the experiment conducted in class, is photosynthesis affected by the intensity of light?
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Yes, within 30 minutes 100 watts produced .3ml of O2, 150 watts produced 2ml and 300 watts produced 6ml.
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The Pigment Experiment.
What plant did we examine the pigment of? |
Spinach extract.
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How many layer did we determine?
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5 layers.
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In order what are the layers?
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* Carotene
* Xanthophyll * Yellow Xanthophyll * Chlorophyll A * Chlorophyll B |
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Pigments absorbed color are not visible, therefore the color we see is being ______________.
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Reflected.
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How human chromosones?
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46 in all
*23 homologous pairs derived from each parent *Sex determined by x and y carried in the sperm *22 pairs are known as autosomes (do not determine sex) *the 23rd pair determines the sex |
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Female human Chromosone
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XX
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Violet and Blue
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The pigment that is most soluble will dissolve first and _________
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move up the farthest.
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Absorbance depends ________.
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Wavelength.
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Female human Chromosone
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XX
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What colors are most useful during photosynthesis?
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Violet, Violet blue and Blue. This is determined by there wavelength. Absorbance depends on wavelength.
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Phenotype
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Appearance of an organism (brown eye and blue example)
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Why are most plants green?
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Most plants are green because other colors such as Violet and Blue are being absorbed and the green color is being reflected.
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Heterozygous
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two DIFFERENT alleles for A gene
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Who is Gregor Mendel?
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Father of genetics.
His researched focused on pea plants. |
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Recessive Allele
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NON noticeable effect on the organism's appearence
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What did Gregor Mendel accomplish?
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He came up with two laws in genetics called the: Mendelian Laws of inheritance.
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Homologous Chromosone
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Two alleles for the same gene are present
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How do genetic variations arise?
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*Mutation and recombination
*Permanent change in genetic variation *Only source of new alleles *Mutations do not arise out of need: they happen randomly |
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Homozygous
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Identical alleles for a character (BB or bb)
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Heterozygous
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two DIFFERENT alleles for A gene
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Recessive Allele
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NON noticeable effect on the organism's appearence
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Gene
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Is a unit of the inheritance (stretches of DNA on a chromosome). Ex: Eye color is controlled by a gene
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Male Human Chromosome
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XY
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How are alleles formed?
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BY MUTATIONS!
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Genotype
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Organism's genetic makeup (BB or Bb or bb)
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Allele
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Alternative version of genes (B or b)l One allele is inherited from each parent.
Eukaryotic organism can have only two alleles for a given gene, but many alleles of that gene occur in the population |
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The term used to represent genetic composition of an individual is its:
a) RNA b) genotype c) phenotype d) Homotype |
Genotype
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Which of the following would be an example of a phenotype of a certain flowering tree?
a) Tree height allele. b) Sugar metabolism allele. c) Flower color. d) Leaf shape allele. e) Leaf length allele. |
Flower color.
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An individual who is heterozygous for a trait
a). Carries only dominant alleles for the trait b). Carries two different alleles for the trait c). Carries a pair of identical alleles for the trait d). Always a carrier of a disorder |
Carries two different alleles for the trait
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The mother of a blood group O child is Blood group B. The genotype of the father is IA io. What is the genotype of the mother?
a). IA iB b). IA IA c) IB iB d) IBio |
IBio
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Homologous Chromosone
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Two alleles for the same gene are present
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How do genetic variations arise?
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*Mutation and recombination
*Permanent change in genetic variation *Only source of new alleles *Mutations do not arise out of need: they happen randomly |
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Phenotype
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Appearance of an organism (brown eye and blue example)
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Why are they called Homologous pairs?
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- have the same length most of the time
-carry the same gene -pair up during meiosis -separated during gamete formation |
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There are two types of cell division:
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Mitosis and Meiosis.
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What is Mitosis?
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1. Happens to somatic cells.
2. Produce cells with the same number of chromosomes as the parent cell 3. Makes Diploid Cells |
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Diploid Cells:
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Are the paring of cells. 46 diploid cells 2N=46 diploid cells
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Somatic cells
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ARE NOT SEX CELLS
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What id Meiosis?
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1. Happens in cells of testes and ovaries
2. Produce "Gametes" with 1/2 the number of chromosomes. 3. Makes a Haploid. |
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What are Gametes?
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Egg/ sperm
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What is a Haploid cell?
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1/2 the number of chromosomes.
N= 23 haploid 2N=Diploid |
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Who determines the sex of a child?
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Male sperm.
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What are autosomes?
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is a chromosome that is not a sex chromosome. there are 22 from male and female
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