LIFE SCIENCE 7-12 TEXES 238 | TOP SCORES MADE SIMPLE |
TRUSTED TEST SOLUTIONS!
Biological waste should be disposed of ... Answer: in an autoclave biohazard bag
Chemicals should be stored... Answer: according to their reactivity with other
substances
"Right to Know" law Answer: the inventory of toxic chemicals must be checked against
the "Substance List" and be available to employees
negligence Answer: failure to exercise ordinary care
fume hood Answer: used to remove noxious vapors when using chemicals
Light Microscope Answer: Ocular 10x, Objective 40x, total is 400x
meniscus Answer: the curved surface of a liquid that should be read a the bottom of the
curve
Spectrophotometry Answer: uses percent of light at different wavelengths absorbed
and transmitted by a pigment solution
How many variables can be in one experiement at a time? Answer: one
control Answer: the thing in the experiment that the variable is being compared to
ionic bond Answer: formed when one electron is stripped away from its atom to join
another atom; called salts
Water Properties Answer: high specific heat, good solvent, high freezing point, polar
covalent bonds
Affects enzyme rate Answer: temperature, amount of substrate, pH
simple sugars Answer: monomers in polysaccharides
DNA Bonds Answer: AT/GC
secondary structure Answer: protein structure consists of the coils and folds of
polypeptide chains
primary structure Answer: protein's unique sequence of amino acids
Tertiary structure Answer: formed by bonds between the side chains of amino acids
1
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,quaternary structure Answer: overall structure of the protein from the aggregation of
two or more polypeptide chains
pseudopods, flagella, cilia Answer: helps organisms move
Characteristics of living things Answer: cellular structure, metabolism, reproduction
binary fission Answer: the way bacteria commonly reproduce
binary fission process Answer: DNA doubles and the bacterial cell divides
Gram postive bacterium Answer: absorbs stain and turns purple
Gram negative bacterium Answer: does not absorb stain and turns pink
Gene therapy Answer: genetic engineering advancement that is the introduction of a
normal allele to the somatic cells to replace a defective allele
The shape of a cell depends on its Answer: function
Chemiosmosis Answer: The electron transport chain uses electrons to pump hydrogen
ions across the mitochondrial membrane to produce 34 ATP.
ATP is generated by ... Answer: the removal of hydrogen ions from NADH and FADH2
Transmission electron microscope Answer: uses beams of electrons to pass through a
specimen and is about 1000x greater than a light microscope
microfiliments, microtubules, intermediate filaments Answer: fibers that make up the
cytoskeleton
viruses are made of... Answer: a protein coat surrounding a nucleic acid; either RNA or
DNA
anaerobic respiration produces this in animals Answer: lactic acid
anaerobic respiration produces this in plants Answer: carbon dioxide and pyruvate
alcoholic fermentation Answer: the anaerobic process by which yeasts and other
microorganisms break down sugars to form carbon dioxide and ethanol
the dark reactions (Calvin Cycle) Answer: Carbon dioxide is fixed in the form of glucose
in...
Krebs Cycle Answer: 8 carrier molecules are formed; 6NADH and 2 FADH2
diffusion requires ... Answer: concentration gradient
active transport Answer: Energy-requiring process that moves material across a cell
membrane against a concentration difference
2
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, Osmosis Answer: Diffusion of water through a selectively permeable membrane
cell membrane Answer: Composed of a phospholipid bilayer
products of light reactions in photosynthesis Answer: Oxygen, ATP, NADPH
electron transport chain Answer: A sequence of electron carrier molecules (membrane
proteins) that shuttle electrons during the redox reactions that release energy used to
make ATP. Occurs in the mitochondrion. Nets 34 ATP
facilitated diffusion Answer: Movement of specific molecules across cell membranes
through protein channels
Which photosystem makes ATP? Answer: photosystem 1
Photosystem 1 (PS1) Answer: A light capturing enzyme in the thylakoid membrane of a
chloroplast; reduces NADP+ to NADPH.
Organization of living things Answer: organelles, cells, tissues, organs, organ systems,
organism
nitrogenous base Answer: the area of a DNA nucleotide that varies
DNA is made of Answer: a 5 carbon sugar, a phosphate group, and a nitrogenous base
protiens Answer: the building blocks by amino acids
genes Answer: contain the sequence of nucleotides that code for amino acids
protein sysnthesis Answer: the process whereby biological cells generate new proteins;
transcription and then translation
Transcription Answer: synthesis of an RNA molecule from a DNA template
Translation Answer: Process by which mRNA is decoded and a protein is produced
Transfer RNA Answer: type of RNA molecule that transfers amino acids to ribosomes
during protein synthesis
leading strand Answer: The new continuous complementary DNA strand synthesized
along the template strand in the mandatory 5' to 3' direction.
lagging strand Answer: A discontinuously synthesized DNA strand that elongates by
means of Okazaki fragments, each synthesized in a 5' to 3' direction away from the
replication fork.
homozygous individual: Answer: two copies (two alleles) of a gene that are identical
heterozygous individual: Answer: has two different alleles for a gene
3
APPHIA - Crafted with Care and Precision for Academic Excellence.
TRUSTED TEST SOLUTIONS!
Biological waste should be disposed of ... Answer: in an autoclave biohazard bag
Chemicals should be stored... Answer: according to their reactivity with other
substances
"Right to Know" law Answer: the inventory of toxic chemicals must be checked against
the "Substance List" and be available to employees
negligence Answer: failure to exercise ordinary care
fume hood Answer: used to remove noxious vapors when using chemicals
Light Microscope Answer: Ocular 10x, Objective 40x, total is 400x
meniscus Answer: the curved surface of a liquid that should be read a the bottom of the
curve
Spectrophotometry Answer: uses percent of light at different wavelengths absorbed
and transmitted by a pigment solution
How many variables can be in one experiement at a time? Answer: one
control Answer: the thing in the experiment that the variable is being compared to
ionic bond Answer: formed when one electron is stripped away from its atom to join
another atom; called salts
Water Properties Answer: high specific heat, good solvent, high freezing point, polar
covalent bonds
Affects enzyme rate Answer: temperature, amount of substrate, pH
simple sugars Answer: monomers in polysaccharides
DNA Bonds Answer: AT/GC
secondary structure Answer: protein structure consists of the coils and folds of
polypeptide chains
primary structure Answer: protein's unique sequence of amino acids
Tertiary structure Answer: formed by bonds between the side chains of amino acids
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
,quaternary structure Answer: overall structure of the protein from the aggregation of
two or more polypeptide chains
pseudopods, flagella, cilia Answer: helps organisms move
Characteristics of living things Answer: cellular structure, metabolism, reproduction
binary fission Answer: the way bacteria commonly reproduce
binary fission process Answer: DNA doubles and the bacterial cell divides
Gram postive bacterium Answer: absorbs stain and turns purple
Gram negative bacterium Answer: does not absorb stain and turns pink
Gene therapy Answer: genetic engineering advancement that is the introduction of a
normal allele to the somatic cells to replace a defective allele
The shape of a cell depends on its Answer: function
Chemiosmosis Answer: The electron transport chain uses electrons to pump hydrogen
ions across the mitochondrial membrane to produce 34 ATP.
ATP is generated by ... Answer: the removal of hydrogen ions from NADH and FADH2
Transmission electron microscope Answer: uses beams of electrons to pass through a
specimen and is about 1000x greater than a light microscope
microfiliments, microtubules, intermediate filaments Answer: fibers that make up the
cytoskeleton
viruses are made of... Answer: a protein coat surrounding a nucleic acid; either RNA or
DNA
anaerobic respiration produces this in animals Answer: lactic acid
anaerobic respiration produces this in plants Answer: carbon dioxide and pyruvate
alcoholic fermentation Answer: the anaerobic process by which yeasts and other
microorganisms break down sugars to form carbon dioxide and ethanol
the dark reactions (Calvin Cycle) Answer: Carbon dioxide is fixed in the form of glucose
in...
Krebs Cycle Answer: 8 carrier molecules are formed; 6NADH and 2 FADH2
diffusion requires ... Answer: concentration gradient
active transport Answer: Energy-requiring process that moves material across a cell
membrane against a concentration difference
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
, Osmosis Answer: Diffusion of water through a selectively permeable membrane
cell membrane Answer: Composed of a phospholipid bilayer
products of light reactions in photosynthesis Answer: Oxygen, ATP, NADPH
electron transport chain Answer: A sequence of electron carrier molecules (membrane
proteins) that shuttle electrons during the redox reactions that release energy used to
make ATP. Occurs in the mitochondrion. Nets 34 ATP
facilitated diffusion Answer: Movement of specific molecules across cell membranes
through protein channels
Which photosystem makes ATP? Answer: photosystem 1
Photosystem 1 (PS1) Answer: A light capturing enzyme in the thylakoid membrane of a
chloroplast; reduces NADP+ to NADPH.
Organization of living things Answer: organelles, cells, tissues, organs, organ systems,
organism
nitrogenous base Answer: the area of a DNA nucleotide that varies
DNA is made of Answer: a 5 carbon sugar, a phosphate group, and a nitrogenous base
protiens Answer: the building blocks by amino acids
genes Answer: contain the sequence of nucleotides that code for amino acids
protein sysnthesis Answer: the process whereby biological cells generate new proteins;
transcription and then translation
Transcription Answer: synthesis of an RNA molecule from a DNA template
Translation Answer: Process by which mRNA is decoded and a protein is produced
Transfer RNA Answer: type of RNA molecule that transfers amino acids to ribosomes
during protein synthesis
leading strand Answer: The new continuous complementary DNA strand synthesized
along the template strand in the mandatory 5' to 3' direction.
lagging strand Answer: A discontinuously synthesized DNA strand that elongates by
means of Okazaki fragments, each synthesized in a 5' to 3' direction away from the
replication fork.
homozygous individual: Answer: two copies (two alleles) of a gene that are identical
heterozygous individual: Answer: has two different alleles for a gene
3
APPHIA - Crafted with Care and Precision for Academic Excellence.
