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four elements are essential to life
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what can you find out from atomic mass
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Bio Final
You need to pass.
| Question | Answer |
|---|---|
| four elements are essential to life | carbon hydrogen nitrogen and oxygen |
| what can you find out from atomic mass | protons plus neutrons |
| chemical behavior of an atom depends on what | the number of electrons in the valence shell |
| difference bt covalent and ionic bonds | covalent bonds share electrons bt atoms, ionic bonds involve the electrical attraction bt atoms |
| if an atom has an inner middle and valence electron shell, which would hold the highest potential energy | valence or outer shell |
| which of the following will be found in nearly all eukaryotic cells | mitochondria |
| prokaryotes are classified as belonging to two different domains. what are they | bacteria and archaea |
| what stucture is common to plant and animal cells | mitochondria |
| which of the following describes the pathway taken by a protein destined for secretion from an animal cell | rough er transport vesicle golgi transport vesicle plasma membrane |
| 3 characteristics of prokaryotes | no nucleus, no organelles, smaller than eukaryotes |
| 3 characteristics of eukaryotes | DNA in nucleus, organelles, larger than eukaryotes |
| what is catabolism | breaking down |
| what is anabolism | building up |
| what is true of metabolism in its entirity in all organisms | it depends on constant supply of energy from food |
| what is true about enzymes | they increase the rate of reaction by lowering the activation barrier |
| what are the 3 kinds of work a cell can do | chemical mechanical and transport |
| in animal cells where does glycolysis occur | cytosol |
| why is glycolysis described as having an energy investment phase and an energy pay off phase | early steps consume energy fromATP later steps store an increased amount of energy in ATP and NADH |
| the complete oxidation of glucose in aerobic respiration occurs through which of the following sequence of metabolic reactions | glucose glycolysis pyruvate oxidation citric acid cycle electron transport chain |
| what best describes the relationship of the light reactions and the calvin cycle | light reactions provide oxygen and carbon fixation for the calvin cycle in return the calvin cycle provides sugars to produce ATP |
| what is the difference bt photo system 1 and 2 | photo 1 recycles neutrons and photo 2 is linear |
| which photo system is coupled with the calvin cycle | 1 |
| which of the following is true concerning cancer cells | they evade the controls that trigger cell death |
| what type of cells are produced by meiosis | a haploid animal cell |
| what event occurs in meiosis but not in mitosis | crossover of chromosomes |
| why did the F1 offspring of mendels pea crossover always look like one of the two parental varieties | one allele was dominant |
| which of the following traits is an example of polygenic inheritance | skin pigmentation |
| what is meant by antiparall regarding the two strands of nucleic acid that makes up DNA | it goes 5' to 3' and the lagging strand goes 3' to 5' |
| the leading strand and lagging strands of DNA formed during DNA replication differ that | the leading strand is replicated in the same direction of the replication fork and the lagging strand is replicated in the opposite direction |
| why is semi conservative replication important | it helps protect against mutations |
| what is an okazaki fragment | the lagging strand |
| which of the following descriptions of nucleotide triplets best represents a codon | a triplet in the same reading fragment and corresponding to an amino acid |
| what is the difference bt a DNA exon and intron | introns are non coding and exons are coding |
| how does phylogeny differ from systematics | in the classification of organisms by evolutionary history |
| how does a molecular clock work | by counting the number of nucleotide substitutions over fixed periods of time |
| please define convergent evolution | when 2 animals that are somewhat similar adapt in the same way, even though the animals are in different areas of the world |
| which of the following statements about species as defined by the biological species concept is are correct | bio species are defined by reproductive isolation and a species is the largest unit of population in which successful interbreeding is possible |
| which of the following reproductive types of isolation illustrates postzygotic barriers | hybrid breakdown |
| the phylogenetic species of concept defines a species as | the smallest group of individuals that share a common ancestor |
| the evolution of mammals from early tetrapods | is an example of macro evolution |
| which of these planet substances is the richest of fossils | sedimentary rock |
| which event stimulated the rapid development of eukaryotes | addition of oxygen to the atmosphere |
| which of the following is the correct sequence of events in the origin of life | 2 3 1 4 |
| the first genes on earth were probably | self replicating RNA molecules |
| what are the three most common prokaryotic bacterial shapes | rod sphere spiral |
| which of these observations gives the most support to the endosymbiotic theory for the origin of eukaryotic cells | the similarity in size bt the cytosolic ribosomes of prokaryotes and the ribosomes within mitochondria and chloroplast |
| the evolution of multicellularity in animals has primarily occurred by | changing how existing genes are used |
| of the 4 supergroups of eukaryotes which one contains red algae green algae and all land plants | archeplastida |
| please describe one of the supergroups | archeplastida has red and green algae and all land plants |
| challenges for survival of the first land plants include | sources of water sperm transfer desiccation 1 2 3 |
| adaptions in plants to life on land include | cuticles tracheids reduced gametophyte generation multicellular dependant embryos 2 3 4 5 |
| sponges are most accurately described as | filter feeders |
| which of the following clades contains the greatest number of animal species | the bilaterans |
| which of the following is incorrectly matched | eutherians; egg laying mammals |
| what is not true about hominins | increased brain size led to bipedalism in hominins |
| what are the 3 true tissue layers | ectoderm endoderm and midderm |
| certain nutrients are considered essential in the diet of animals because | they are required for animal diets but these animals are not able to synthesize these nutrients |
| the large surface area in the small intestine directly facilitates | absorption |
| the molar teeth of herbivorous mammals are especially effective at | grinding |
| a group of animals in which a relatively long digestive system is likely to be found is the | herbivores |
| what are the fat soluble vitamins | ADEK |
| what are 2 adaptions of vertebrae digestive system | a shorter system |
| what does essential mean when referring to an essential nutrient such as an amino acid | it isnt made by the body naturally |
| which of the following levels of ecological organization is arranged in the correct sequence from the most to least inclusive | population ecosystem individual community |
| which marine zone is expected to have the lowest rates of primary productivity (photsynthesis | abyssal |
| a population is correctly defined as having which of the following characteristics | inhabits the same general area |
| which of the following biomes is correctly paired with the description of its climate | tropical forests-nearly constant day length and temperature |
| what is cytokinesis | splitting of cytoplasm |
| 3 reasons the fossil record favors certain species | had hard parts |
| what is vertical layering and why is it good | contains different layers like a mountain forest. different populations at different levels |
Created by:
hannahb22