IB Biology paper 1 Exam with Accurate
Solutions
Prokaryote or Eukaryote in paramecium? - ANS-Compartments in the cell indicates that
it's a eukaryote
Property of water which makes it suitable for living? - ANS-Thermal
Watson and Crick discovery about DNA - ANS-DNA is double helix
What occurs in meiosis but not in mitosis? - ANS-Homologous chromosomes pair up
Variation within a population - ANS-Fertilization and mutation
properties of stem cells - ANS-they can differentiate
phospholipid bilayer - ANS-the placement of integral and peripheral proteins in the
membrane
evidence for endosymbiotic theory - ANS-mitochondrial DNA in Eukaryotic cells
breakdown of starch into sugar - ANS-catabolic
why can water dissolve solutes? - ANS-polarity of water molecule, hydrogen bonds
Similarities between DNA and RNA - ANS-Both are nucleic acids; both have A, C, and
G
product of somatic cell nuclear transfer? - ANS-cloned embryos
diploid chromosome number - ANS-species have the same diploid number of
chromosomes
comparison of DNA between prokaryotic and Eukaryotic cell - ANS-prokaryote DNA
associated with histone, Eukaryote DNA associated with proteins
Mutation - ANS-change in a DNA sequence that affects genetic information
transfer of monosacchrides f.x. fructose - ANS-facilitated diffusion
Osmosis - ANS-Diffusion of water through a selectively permeable membrane
, facilitated diffusion - ANS-Movement of specific molecules across cell membranes
through protein channels
Endocytosis - ANS-process by which a cell takes material into the cell by infolding of the
cell membrane
active transport - ANS-the movement of materials through a cell membrane using
energy
single membrane structure in eukaryotes - ANS-lysosome
Organelle - ANS-specialized structure that performs important cellular functions within a
eukaryotic cell
organelle involved in generating vesicles for cell membrane - ANS-Golgi apparatus
protein in human skin and ligament - ANS-collagen
why species contain a larger number of protein than genes that code for them? - ANS-
some genes code for several proteins
which domain have organelles? - ANS-eukaryotes
blood vessle with least co2 concentration - ANS-pulmonary vein
what helps blood to flow from the heart in artery - ANS-elastic fibers
organelles that are more visible in pancreas digestive enzyme? - ANS-Rough ER and
Golgi apparatus
cell membrane - ANS-
DNA vs RNA - ANS-deoxyribose sugar vs. ribose sugar, thymine vs. uracil , double
strand vs. single strand
what occurs during meiosis but not mitosis? - ANS-homologous chromosomes pair up
and fall apart
causes of variation within population? - ANS-fertilization and mutation
why stem cells used in repairing damaged organs? - ANS-they can reproduce
function of membrane protein? - ANS-enzymatic activity
Solutions
Prokaryote or Eukaryote in paramecium? - ANS-Compartments in the cell indicates that
it's a eukaryote
Property of water which makes it suitable for living? - ANS-Thermal
Watson and Crick discovery about DNA - ANS-DNA is double helix
What occurs in meiosis but not in mitosis? - ANS-Homologous chromosomes pair up
Variation within a population - ANS-Fertilization and mutation
properties of stem cells - ANS-they can differentiate
phospholipid bilayer - ANS-the placement of integral and peripheral proteins in the
membrane
evidence for endosymbiotic theory - ANS-mitochondrial DNA in Eukaryotic cells
breakdown of starch into sugar - ANS-catabolic
why can water dissolve solutes? - ANS-polarity of water molecule, hydrogen bonds
Similarities between DNA and RNA - ANS-Both are nucleic acids; both have A, C, and
G
product of somatic cell nuclear transfer? - ANS-cloned embryos
diploid chromosome number - ANS-species have the same diploid number of
chromosomes
comparison of DNA between prokaryotic and Eukaryotic cell - ANS-prokaryote DNA
associated with histone, Eukaryote DNA associated with proteins
Mutation - ANS-change in a DNA sequence that affects genetic information
transfer of monosacchrides f.x. fructose - ANS-facilitated diffusion
Osmosis - ANS-Diffusion of water through a selectively permeable membrane
, facilitated diffusion - ANS-Movement of specific molecules across cell membranes
through protein channels
Endocytosis - ANS-process by which a cell takes material into the cell by infolding of the
cell membrane
active transport - ANS-the movement of materials through a cell membrane using
energy
single membrane structure in eukaryotes - ANS-lysosome
Organelle - ANS-specialized structure that performs important cellular functions within a
eukaryotic cell
organelle involved in generating vesicles for cell membrane - ANS-Golgi apparatus
protein in human skin and ligament - ANS-collagen
why species contain a larger number of protein than genes that code for them? - ANS-
some genes code for several proteins
which domain have organelles? - ANS-eukaryotes
blood vessle with least co2 concentration - ANS-pulmonary vein
what helps blood to flow from the heart in artery - ANS-elastic fibers
organelles that are more visible in pancreas digestive enzyme? - ANS-Rough ER and
Golgi apparatus
cell membrane - ANS-
DNA vs RNA - ANS-deoxyribose sugar vs. ribose sugar, thymine vs. uracil , double
strand vs. single strand
what occurs during meiosis but not mitosis? - ANS-homologous chromosomes pair up
and fall apart
causes of variation within population? - ANS-fertilization and mutation
why stem cells used in repairing damaged organs? - ANS-they can reproduce
function of membrane protein? - ANS-enzymatic activity
