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the concentration of dissolved substances is lower in the solution outside the cell than the concentration inside the cell
the stage in mitosis or meiosis in which the duplicated chromosomes line up along the equatorial plate of the spindle
the atoms stop moving
when there is no difference in the concentration of a substance from one area to another
the process by which molecules move from an area of higher concentration to an area of lower concentration
during the process of transcription, DNA serves as the template for making_____ which leaves the nucleus and travels to the ribsomes
failure of homologous chromosomes to separate properly during meiosis; results in gametes with too many or too few chromosomes
when parts of chromosomes are broken off and lost or reattached incorrectly during mitosis or meiosis
The process by which organisms make more of their own kind from one generation to the next
any structure, behavior, or internal process that enable an organism to better survive in an environment
requires detection and the ability to respond, an organism maintains a stable internal environment, characteristic of life
2 molecules of ATP are used in the first step and 4 molecules of ATP are produced in the second step
cause the phenotypes of both homozygous to be produced in heterozygous individuals
completely dominant alleles
phenotypes of both heterozygous and homozygous dominant individuals have the same phenotype.
a phenotype of the heterozygote is intermediate between those phenotypes expressed by the homozygotes
when roan cattle are mated, 25% of the offspring are red, 50% are roan, and 25% are white. Upon examination, it can be seen that the coat of a roan cow consists of both red and white hairs. This trait is controlled by
Mendel's law of heredity "in meiosis, the way in which a chromosome pair separates does not affect the way other pairs separate
The type of cell division by which prokaryotes reproduce. Each dividing daughter cell receives a copy of the single parental chromosome.
the folded system of membranes that forms a network of interconnected compartments inside the cell
found in plants the structures that capture the energy from sunlight and converts it into chemical energy
make up the selectively permeable membrane that controls which molecules enter and leave the cell
have characteristics of both autotrophs and heterotrophs. single celled algae with a flagellum- they can eat like a animal
the stage in the life cycle of a plant in which the plant produces gametes, or sex cells
what is the relationship between the sporophyte and gametophyte stages of some algae?
gametes fuse to form a zygote which is the diploid form that is called sporophyte
What triggers sexual reproduction in diatoms
have two shells of silica (glass) overlapping like the halves of a petri dish (Chrysophyta) when the two halves (boxes) separate, it triggers sexual reproduction
gonyaulax catanella, produces an extremely strong nerve toxin
what causes the dangerous red tides in the ocean?
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