true or false
(T o F) Signal that binds to receptors on nearby cells is autocrine signals
False
(T or F) If a cell contained a radioactive version of rubisco, the radioactivity would be located in the thylakoid space
False
(T or F) The law of independent assortment is the reason that dominant alleles are visible in the organisms phenotype.
False
True or False Acids decrease the H concentration in solution False
False
True or False Cyanate is an example of a biolgoical organic functional group
False
True or False The "flow of genetic information" in molecular biology follows the following path, DNA is translated into RNA, which is transcribed into protein
False
True or False The difference between an aldose sugar and a ketose sugar is the number of carbon atoms
False
True or False A series of enzymes catalyze the reactions in the metabolic pathway X ---> Y----> Z---->A. Product A binds to the enzyme that converts X to Y at a position remote from its active site. This binding decreases the activity of the enzyme. Based on its interaction with the enzyme that converts X to Y substance A is best described as a competitive inhibitor.
False
True or False A newly synthesized protein destined for secretion from a eukaryotic cell will generally follow the following pathway: Golgi--> rough ER----> Lysosome--->transport vesicle--->Plasma membrane
False
(T or F) In apoptosis the DNA and organelles are fragmented, the cell shrinks and forms blebs, and the cell self-digests.
True
(T or F) One difference between cancer cells and normal cells is that cancer cells continue to divide even when they are tightly packed together
True
(T or F) drug that prevent ca+ from acting as second messanger that drug will be targeted in the endoplasmic reticulum
True
(T or F) reduction of CO2 occurs in the calvin cycle
True
(T or F) Alignment of chromosomes on the equator of the cell is a characteristic feature of metaphase
True
(T or F) In pea plants, the tall phenotype is dominant to the dwarf phenotype. If heterozygous pea plant is crossed with a homozygous tall pea plant, the probability that the offspring will be dwarf in size is 0
True
(T or F) Neither Tim nor Rhoda has Duchenne muscular dystrophy, but their firstborn son does have it. The probability that a second child will have the is 1/4
True
(T or F) scaffolding proteins are large molecules to which several relay proteins attach to facilitate cascade effects
True
True or False If one strand of a DNA molecule has the sequence of bases 5'ATTGCA3', the mRNA synthesized following the template will be 5' -UGCAAU-3'
True
True or False The maximum number of hydrogen atoms that can be covalently bonded in a molecule containing two carbon atoms is six
True
True or False Water has a high specific heat, meaning it will resist changes in temperature
True
True or False A cell with a predominance of smooth endoplasmic reticulum is most likely specialized to carry out synthesis of large quantities of lipids
True
True or False A defect in aquaporins would dramatically reduce the rate of diffusion of water across cell membranes
True
True or False An organism with a cell wall would most likely be unable to take in materials through phagocytosis
True
True or False Plasmodesmata form cytoplasmic channels that connect adjacent plant cells through the cell walls.
True
True or False Testosterone and estradiol are male and female sex hormones, respectively, in many vertebrates. They differ from each other because of the different functional groups attached to the same carbon skeleton.
True
True or False The two molecules shown in the figures are best described as structural isomers
True
