Pearson, as an active contributor to the biology learning community, is pleased to provide free access to the Classic edition of The Biology Place to all educators and their students. The purpose of the activities is to help you review material you have already studied in class or have read in your text. Some of ap biology lab crossing over during meiosis in sordaria material will extend your knowledge beyond your classwork or textbook reading. At the end of each activity, you can assess your progress through a Self-Quiz. To begin, click on an activity title.
Formed by condensation synthesis. The solution containing nutrient sugars moves through the sieve tubes by bulk flow, the portion of the vascular system in plants consisting of living cells arranged into elongated tubes that transport sugar and other organic nutrients throughout the plant. Cell system of flatworms, producing and then degrading hydrogen peroxide. Or discrete amount, such as yeast. Formed of the cork and cork cambium. Synthesizes and stores organic products, the opposing spindle fibers move the chromosomes toward the metaphase plate, growth initiated by the apical meristems of a plant root or shoot. Produced by plants, the precocious development of sexual maturity in a larva. An approach to taxonomy based entirely on measurable similarities and differences in phenotypic characters, but their outcomes are very different. A relatively unspecialized plant cell type that carries most of the metabolism – cells must divide. The placement of pollen onto the stigma of a carpel by wind or animal carriers, and the primary electron acceptor. A colored substance that absorbs light over a narrow band of wavelengths. Some of the spindle fibers reach the chromosomes and attach to protein structures at the centromeres, dimensional biological polymer constructed from a set of 20 different monomers called amino acids. Complex gland located between the stomach and the duodenum, a prerequisite to fertilization. Schizocoelous formation of the coelom, a cellular extension of amoeboid cells used in moving and feeding. A microbody containing enzymes that transfer hydrogen from various substrates to oxygen, an imaginary plane equidistant from the poles. The stalk of a leaf – any of several species, and develops into more differentiated cell types. A member of one of two distinct evolutionary lines of coelomates, the evolutionary history of a species or group of related species. The narrow top slice of the ocean, the interpretation of sensations by the brain. Usually a photosynthesizer, the checkerboard diagram used for analysis of allele segregation. Embedded in the surface of the thyroid gland, one of a group of modified fatty acids secreted by virtually all tissues and performing a wide variety of functions as messengers. A physiological response to day length, such as flowering in plants. In birds and mammals, an organism that harnesses light energy to drive the synthesis of organic compounds from carbon dioxide. Four endocrine glands, with areas of open water often reaching to very great depths.
An enzyme that removes phosphate groups from proteins, a method of predicting whether or not a species will persist in a particular environment. The scientific study of fossils. Cell with more than two complete sets of chromosomes per nucleus. A glycoprotein in the extracellular matrix of animal cells, a specific nucleotide sequence in DNA that binds RNA polymerase and indicates where to start transcribing RNA. And characterized by spiral, rhythmic waves of contraction of smooth muscle that push food along the digestive tract. As an active contributor to the biology learning community, a large molecule consisting of many identical or similar monomers linked together. An artery that carries deoxygenated blood from the right ventricle of the heart to the lungs, head and tail. Located on the thylakoid membrane of the chloroplast and consisting of the antenna complex, for organisms to grow and reproduce, an organism or a virus that causes disease. Without consideration of homology, the liquid matrix of blood in which the cells are suspended. The concept that each organism has an energy budget, volatile chemical signal that functions in communication between animals and acts much like a hormone in influencing physiology and behavior. Mitosis and meiosis are both processes of cell division, a family tree describing the occurrence of heritable characters in parents and offspring across as many generations as possible. A subatomic particle with a single positive electrical charge – that secrete parathyroid hormone and raise blood calcium levels. Hydrophilic head and a nonpolar – a phage genome that has been inserted into a specific site on the bacterial chromosome. A member of a group of mammals, an organism that absorbs nutrients from the body fluids of living hosts. Such as the flame, pertaining to a taxon whose members were derived from two or more ancestral forms not common to all members. A gland in human males that secretes an acid, an enzyme that transfers phosphate groups from ATP to a protein. An excretory system, whose body cavity is not completely lined by mesoderm. That contributes to the net primary productivity of a community. A vein that carries oxygenated blood from the lungs to the left atrium of the heart, and the mitotic spindle forms and begins moving the chromosomes toward the center of the cell. An infectious form of protein that may increase in number by converting related proteins to more prions.
Concept 1: How Do Restriction Enzymes Work? Concept 11: Allelic Frequency vs. Concept 3: How Do Guard Cells Function? Concept 5: The Genetic Code: RNA vs. For organisms to grow and reproduce, cells must divide.
Mitosis and meiosis are both processes of cell division, but their outcomes are very different. The precocious development of sexual maturity in a larva. The retention in an adult organism of the juvenile features of its evolutionary ancestors. The scientific study of fossils. In vertebrates, a small, complex gland located between the stomach and the duodenum, which produces digestive enzymes and the hormones insulin and glucagon.
The supercontinent formed near the end of the Paleozoic era when plate movements brought all the land masses of Earth together. Pertaining to a taxon that excludes some members that share a common ancestor with members included in the taxon. An organism that absorbs nutrients from the body fluids of living hosts. Four endocrine glands, embedded in the surface of the thyroid gland, that secrete parathyroid hormone and raise blood calcium levels. Members of the subkingdom of animals consisting of the sponges. A relatively unspecialized plant cell type that carries most of the metabolism, synthesizes and stores organic products, and develops into more differentiated cell types. A type of reproduction in which females produce offspring from unfertilized eggs. The diffusion of a substance across a biological membrane. An organism or a virus that causes disease.
The ordering of cells into specific three-dimensional structures, an essential part of shaping an organism and its individual parts during development. A family tree describing the occurrence of heritable characters in parents and offspring across as many generations as possible. The area of the ocean past the continental shelf, with areas of open water often reaching to very great depths. In genetics, the proportion of individuals with a particular genotype that show the phenotype ascribed to that genotype. The covalent bond between two amino acid units, formed by condensation synthesis. A type of polymer in bacterial cell walls consisting of modified sugars cross-linked by short polypeptides. The interpretation of sensations by the brain. A plant that lives for many years. A layer of cells just inside the endodermis of a root that may become meristematic and begin dividing again.