Bio Final Word Scramble

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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