Consider a hepatocyte (liver cell) carrying out the oxidation of glucose under aerobic conditions. Potasstum cyanide, a potent inhibitor of the enzyme cytochrome c, is administered. Indicate whether each of the following statements about the effect of this uncoupler is true or false; if false, briefly justify in one or two sentences. (4 points total) (a) The rate of oxygen consumption will decrease. (b) The cell will switch from glucose oxidation to fatty acid oxidation. (c) ATP synthase will still be able to create ATP. (d) Lactic acid fermentation will increase sharply.

The construction of phylogenetic trees is a mapping out the proposed divisions and common ancestors of all living species. traditionally, these trees have been built using morphological data, such as appearance and embryology. recently, it has been possible to construct these trees using molecular data. phylogenetic trees based on different types of information agree with each: that there is strong evidence of a real underlying common descent. this phylogenic tree is composed based on molecular data (rrna). what statements can we infer are true about the organisms throughout the tree? because the tree is rooted, all branches share a common ancestor. all organisms have some sort of cellular structure/organization. all eukaryotes evolved from bacteria. since the organisms contain rna, they share the same dna. if the organisms contain rna, the share the same four nitrogen bases.

How does pregnancy begin? a) a placenta forms in the uterus b) a sperm reaches an egg in the fallopian tubec) the blastocyst differentiates into two cell types d) contractions begin in the uterine wallapex

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.