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What is homeostasis
The maintenance of content internal conditions in an organism
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The 3 major characteristics of all living things share
Metabolism. Genetic material-DNA
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What is a hypothesis
Educated guess, testable, explains something about the natural world
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The 3 steps of the scientific method
Questions, hypothesis, controlled experiment
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What is the carbohydrates monomer
Monosaccharides or glucose
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Proteins function
Increase the speed of a reaction, make muscle,etc
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The differences between eukaryotes and prokaryotes
- E: plant/animal cells, fungus, has nucleus
- P: no nucleus, only single stranded called, microscopic
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Active transport
Needs energy
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Passive transport
Doesn't need energy
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Semi-permeable membrane
Cell membranes allow are materials through while others are not
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Mitosis 1/ result
Long interface/ 2 somatic cells
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Meiosis/ result
2 round of cell division/ 4 gametes
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How many pairs of chromosomes
23
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How many pairs of autosomes
22
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Phenotype
The physical characteristics
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Genotype
The genie make up
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What is DNA polymerase
Bonds the new nucleotides together
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What is semi conservative replication
Uses of one strand and one old strand
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Central dogma
DNA-RNA-protein
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Function of carbohydrates
To be broken down to provide a source of usable chemical energy for cells
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What is the difference between acid and base
- Base: compounds that remove H+ ions from solution
- Acid: a compound that release a proton when it dissolves in water
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What are enzymes
Catalyst for chemical reaction the living things
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Why are enzymes important
It lowers the activation energy and increases the rate of chemical reactions
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What are the three principles of cell theory
All organisms are made of cells. All existing cells or are produced by other living things. The sale is the most basic unit of life
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Osmosis
Diffusion of water molecules across the semi Premable membrane from an area of high water concentration to an area of lower water concentration
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Diffusion
Movement of dissolved molecules and fluid or gas from a region of higher concentration to a region of lower concentration
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phospholipids
Molecule that forms the cell membrane
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Crossing over
Exchange of chromosome segments between homologous chromosomes during meiosis one
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Law of segregation
Organisms inherit two copies of jeans one from each parent. Organisms donates only one copy of each gene and there is gametes.
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What is the difference between sex chromosomes and autosomes
- Auto: chromosome that contains genes for characteristics not directly related to the sex of the organism
- Chrome: Long continuous thread of DNA that consist of numerous genes and information
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What is the difference between haploid and diploid cells
- D: A cell that has two copies of each chromosome
- H: A cell that has only one copy of each chromosome
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Homozygous
Terroristic of having two of the same alleles at the same locus of sister chromatids
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Heterozygous
Characteristics of having two different alleles that appear at the same locus of sister chromatids
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Dominant
Allele that is expressed when two different alleles are present in the organisms genotype
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Recessive
Allele that is not expressed unless two copies are present in an organisms genotype
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Incomplete dominance
Heterozygous phenotype that is a blend of two homozygous phenotypes
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Sex linked traits
Gene that is located on a sex chromosome
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Polly genic traits
Trait that is produced by two or more genes
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What are the monomers of DNA called
Nucleotides
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What are the three differences between DNA and RNA
- You're so instead of thymine, ribosomes instead of deoxyriose
- Single strands
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Where in the cell does transcription occur
DNA
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Where in the cell does translation occur
RNA
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