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Study sets matching "ib biology"

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Study sets matching "ib biology"

92 terms
IB Biology - Molecular Biology
Name the most frequent elements in life
5 other necessary elements for life
Compound
Ionic bonds
CHON (Carbon, hydrogen, oxygen, nitrogen, and are main elemen…
Sulfur: found in 2 amino acids... Calcium: chemical messenger th…
2 or more elements combined in a fixed ratio
one atom strips valence electrons from another atom (high ele…
Name the most frequent elements in life
CHON (Carbon, hydrogen, oxygen, nitrogen, and are main elemen…
5 other necessary elements for life
Sulfur: found in 2 amino acids... Calcium: chemical messenger th…
99 terms
IB Biology- Molecular Biology
molecular biology
carbon
organic molecules
inorganic molecules
the study of living processes in terms of the chemicals invol…
forms many different compounds due to four available covalent…
carbon based molecules that are made in living organisms
any molecule that is produced through non-living means, e.g.…
molecular biology
the study of living processes in terms of the chemicals invol…
carbon
forms many different compounds due to four available covalent…
33 terms
IB Biology
2.1.1 Outline the cell theory.
2.1.2 Discuss the evidence for the cel…
2.1.3 State that unicellular organisms…
2.1.4 Compare the relative sizes of mo…
The cell theory states that: ... ... All living organisms are com…
When these cells were taken from tissues they were able to su…
2.1.3 State that unicellular organisms carry out all the func…
A molecule = 1 nm... Thickness of cell membrane = 10 nm... Viruses…
2.1.1 Outline the cell theory.
The cell theory states that: ... ... All living organisms are com…
2.1.2 Discuss the evidence for the cel…
When these cells were taken from tissues they were able to su…
IB Biology
protein
phospholipid
natural fat
steroid
macromolecule that contains carbon, hydrogen, oxygen, and nit…
The phospholipids are not "true fats" because they have one o…
protect and insulate body organs (major source of stored ener…
Steroids are lipids because they are hydrophobic and insolubl…
protein
macromolecule that contains carbon, hydrogen, oxygen, and nit…
phospholipid
The phospholipids are not "true fats" because they have one o…
126 terms
IB Biology
What does it mean to be alive? (7)
Totipotent stem cells
Pluripotent stem cells
Multipotent
- maintain homeostasis... - respond to stimuli... - adapt and evolv…
Unlimited capability and have the ability to form the embryo…
Capable of developing into every cell... Source: Blastocyst
Give rise to cells that have specific function... Source: Bone…
What does it mean to be alive? (7)
- maintain homeostasis... - respond to stimuli... - adapt and evolv…
Totipotent stem cells
Unlimited capability and have the ability to form the embryo…
35 terms
IB Cell Biology-
phospholipid bilayer
cell membrane
fluid mosaic model
semipermeable membrane
plasma membrane layers composed of phospholipid molecules arr…
double-layer of phospholipids that forms a boundary between a…
model that describes the arrangement and movement of the mole…
A membrane that allows some molecules to pass through but doe…
phospholipid bilayer
plasma membrane layers composed of phospholipid molecules arr…
cell membrane
double-layer of phospholipids that forms a boundary between a…
87 terms
IB Cell Biology-
phospholipid bilayer
cell membrane
fluid mosaic model
semipermeable membrane
plasma membrane layers composed of phospholipid molecules arr…
double-layer of phospholipids that forms a boundary between a…
model that describes the arrangement and movement of the mole…
A membrane that allows some molecules to pass through but doe…
phospholipid bilayer
plasma membrane layers composed of phospholipid molecules arr…
cell membrane
double-layer of phospholipids that forms a boundary between a…
23 terms
IB Biology - Cell Theory
Cell Theory
Unicellular organism
Metabolism
Homeostasis
Idea that all living things are composed of cells, cells are…
Organism that consists of one cell that carries all functions…
Chemical reactions inside a cell, such as cell respiration
The ability to keep conditions inside the organism within tol…
Cell Theory
Idea that all living things are composed of cells, cells are…
Unicellular organism
Organism that consists of one cell that carries all functions…
33 terms
IB Biology Molecules
Thymine - pyrimidine
Guanine - purine
Adenine - purine
Uracil - pyrimidine
Thymine - pyrimidine
Guanine - purine
28 terms
IB Biology - Cell Theory
Cell Theory
Unicellular organism
Metabolism
Homeostasis
Idea that all living things are composed of cells, cells are…
Organism that consists of one cell that carries all functions…
Chemical reactions inside a cell, such as cell respiration
The ability to keep conditions inside the organism within tol…
Cell Theory
Idea that all living things are composed of cells, cells are…
Unicellular organism
Organism that consists of one cell that carries all functions…
72 terms
IB Cell Biology-
phospholipid bilayer
cell membrane
fluid mosaic model
semipermeable membrane
plasma membrane layers composed of phospholipid molecules arr…
double-layer of phospholipids that forms a boundary between a…
model that describes the arrangement and movement of the mole…
A membrane that allows some molecules to pass through but doe…
phospholipid bilayer
plasma membrane layers composed of phospholipid molecules arr…
cell membrane
double-layer of phospholipids that forms a boundary between a…
38 terms
MVHS Biology IB 2
xylem
transpiration
stomata
photosynthesis
Nonliving vascular tissue that carries water and dissolved mi…
Loss of water from a leaf of a plant through stomata that cre…
regulated openings on the bottom of leaves that control the e…
process in which UV light energy is converted into the energy…
xylem
Nonliving vascular tissue that carries water and dissolved mi…
transpiration
Loss of water from a leaf of a plant through stomata that cre…
30 terms
IB Biology Command Terms
Distinguish
Estimate
Compare
Construct
Give the differences between two or more items
Find an approximate value for an unknown quantity
Give an account of similarities and differences between two,…
Represent or develop in a graphical form
Distinguish
Give the differences between two or more items
Estimate
Find an approximate value for an unknown quantity
54 terms
Photosynthesis (IB Biology HL)
light-dependent reactions
light-independent reactions
action spectrum
absorption spectrum
The first stage in photosynthesis, occuring the presence of l…
These are chemical reactions that convert carbon-dioxide to g…
A spectrum of photosynthesis that shows the percentage of lig…
electromagnetic spectrum transmitted through a substance, sho…
light-dependent reactions
The first stage in photosynthesis, occuring the presence of l…
light-independent reactions
These are chemical reactions that convert carbon-dioxide to g…
17 terms
IB Biology HL - Organelles
Cell Membrane
Cell Wall
Cytoplasm
Mitochondria
Controls what comes into and out of a cell... "members only"
Ridged outer layer of a plant cell... "like a brick___"
Gel-like fluid where the organelles are found... "sail through m…
Produces the energy a cell needs to carry out its functions... "…
Cell Membrane
Controls what comes into and out of a cell... "members only"
Cell Wall
Ridged outer layer of a plant cell... "like a brick___"
57 terms
IB Biology- Molecular Biology
Molecular biology
Carbon
metabolism
anabolism
living processes in terms of chemicals involved
forms many different compounds due to four available covalent…
series of enzyme controlled reactions
synthesis of macromolecules from monomers via condensation wh…
Molecular biology
living processes in terms of chemicals involved
Carbon
forms many different compounds due to four available covalent…
156 terms
IB Biology - Molecular Biology
Name the most frequent elements in life
Other necessary elements for life
What are stable elements?
Compound
HONC (Hydrogen, oxygen, nitrogen, and carbon are main element…
Sulfur: found in 2 amino acids... Calcium: chemical messenger th…
Elements that have a full valence energy level
2 or more elements combined in a fixed ratio
Name the most frequent elements in life
HONC (Hydrogen, oxygen, nitrogen, and carbon are main element…
Other necessary elements for life
Sulfur: found in 2 amino acids... Calcium: chemical messenger th…
17 terms
IB BIOLOGY: Photosynthesis SL
Photosynthesis
Chlorophyll
Sunlight
Green
Involves the conversion of light energy to chemical energy
Main photosynthetic pigment
Consists of light of many different wavelengths
Wavelength of light that is poorly absorbed by chlorophyll
Photosynthesis
Involves the conversion of light energy to chemical energy
Chlorophyll
Main photosynthetic pigment
150 terms
IB Biology SL Vocabulary
Genotype
Phenotype
Dominant Allele
Recessive Allele
The combination of the alleles on an organism's genes express…
The expression in traits of a genotype, which is described in…
The part of a genotype allele which overrides recessive genes…
The part of the genotype which can be overrided and not expre…
Genotype
The combination of the alleles on an organism's genes express…
Phenotype
The expression in traits of a genotype, which is described in…
61 terms
Topic #2- IB Biology
carbohydrates
lipids
proteins
nucleic acids
provides energy for cell processes, allows storage for energy…
used to store energy: fat in humans (saturated, solid at room…
essential for cell processes, C,H,O,N
like DNA or RNA. smallest protein=amino acids, (20 unique and…
carbohydrates
provides energy for cell processes, allows storage for energy…
lipids
used to store energy: fat in humans (saturated, solid at room…
39 terms
IB Biology
RNA
DNA
Hydrogen Bond
1953 Watson and Crick
single stranded ribo nucleic acid ... A,U,C,G
double helix deoxyribonucleic acid ... A,T,C,G
a weak bond between the two nitrogenous bases of the DNA
discovered of DNA, by using x-ray images and comparing to kno…
RNA
single stranded ribo nucleic acid ... A,U,C,G
DNA
double helix deoxyribonucleic acid ... A,T,C,G
34 terms
IB Biology Topic 1 Cells
2.1.1 Outline the cell theory
2.1.2 Discuss the evidence for the cel…
2.1.2 What are the exceptions to cell…
2.1.3 State that unicellular organisms…
The cell theory states that:... 1. All living things are compos…
Microscopes:... ◾Microscopes have increased man's ability to vis…
skeletal muscle fibres are larger / are not typical cells;... fu…
Unicellular organisms (such as amoeba, paramecium, euglena an…
2.1.1 Outline the cell theory
The cell theory states that:... 1. All living things are compos…
2.1.2 Discuss the evidence for the cel…
Microscopes:... ◾Microscopes have increased man's ability to vis…
12 terms
IB Biology Ecology Terms
ECOLOGY
HABITAT
SPECIES
POPULATION
The study of relationships between organisms and between orga…
The environment in which a species normally lives
A group of organisms with similar characteristics, which can…
A group of organisms of the same species, who live in the sam…
ECOLOGY
The study of relationships between organisms and between orga…
HABITAT
The environment in which a species normally lives
141 terms
IB Biology
What does it mean to be alive? (7)
Totipotent stem cells
Pluripotent stem cells
Multipotent
- maintain homeostasis... - respond to stimuli... - adapt and evolv…
Unlimited capability and have the ability to form the embryo…
Capable of developing into every cell... Source: Blastocyst
Give rise to cells that have specific function... Source: Bone…
What does it mean to be alive? (7)
- maintain homeostasis... - respond to stimuli... - adapt and evolv…
Totipotent stem cells
Unlimited capability and have the ability to form the embryo…
28 terms
IB Biology HL Photosynthesis
Photosynthesis
Light Dependent Reactions (LDR)
Light Independent Reactions (LIR)
Condensation Reaction
The conversion of light energy into chemical energy in plants
Uses light energy to produce ATP and to split water molecules…
Calvin Cycle, uses ATP and H+ ions to 'fix' carbon dioxide. m…
The process where monosaccharides are combined to make carboh…
Photosynthesis
The conversion of light energy into chemical energy in plants
Light Dependent Reactions (LDR)
Uses light energy to produce ATP and to split water molecules…
12 terms
IB Biology
Nucleus
Chloroplasts
Vacuale
Rough ER
the control center of the cell. Initiates mitosis and creates…
Only in plant cells. Performs photosynthesis,
Store food and waste products. Enables molecules to be kept o…
Site of protein synthesis(does not take part in it). Place wh…
Nucleus
the control center of the cell. Initiates mitosis and creates…
Chloroplasts
Only in plant cells. Performs photosynthesis,
108 terms
IB Biology: Chapter 1
cell theory
challenges to the cell theory
functions of life
explain why small cells are more effic…
- all living things are composed of cells... - the cell is the s…
- striated muscle challenges the idea that a cell has one n…
- metabolism... - response... - homeostasis... - growth... - reproduction…
- larger surface area to volume ratio can act more efficientl…
cell theory
- all living things are composed of cells... - the cell is the s…
challenges to the cell theory
- striated muscle challenges the idea that a cell has one n…
81 terms
IB biology
standard deviation
Correlation
Cell theory
Surface area
-compare spread of date values above or below the mean ... -high…
-no causal link, other factors can cause a correlation ... -no p…
1) Cells come from pre-existing cells ... 2) Cells are the small…
Determines what materials leave or enter a cell
standard deviation
-compare spread of date values above or below the mean ... -high…
Correlation
-no causal link, other factors can cause a correlation ... -no p…
64 terms
Biology IB
An Acid
A base
What happens when you add an acid into…
pH 1 is __ times more acidic than pH2
a substance that ionizes in solution to yield H+ and an anion…
a proton acceptor. Most bases yield OH- (hydroxide ion) and a…
the H+ concentration will increase and inversely the OH- conc…
10
An Acid
a substance that ionizes in solution to yield H+ and an anion…
A base
a proton acceptor. Most bases yield OH- (hydroxide ion) and a…
39 terms
2.1 IB Biology Vocabulary
Carbohydrates
lipids
glucose
Proteins
Contain carbon, oxygen, hydrogen (CHO). Organic compounds con…
Contain C, H, O. A group of non-polar organic molecules that…
Monosaccharide, (6 carbon ring), C6H12O6. Can be alpha or bet…
Contain Carbon, Hydrogen, Oxygen, Nitrogen, and additionally…
Carbohydrates
Contain carbon, oxygen, hydrogen (CHO). Organic compounds con…
lipids
Contain C, H, O. A group of non-polar organic molecules that…
14 terms
IB Biology: Plant Biology
Colored flowers
Long-day plants
Xylem transport
Phloem transport
Red is attractive to birds, yellow and orange are attractive…
Flower when days are long and nights are short (midsummer) i.…
Brings water to the leaves; two cells types are tracheids and…
Carries the products of photosynthesis to the rest of the plant
Colored flowers
Red is attractive to birds, yellow and orange are attractive…
Long-day plants
Flower when days are long and nights are short (midsummer) i.…
25 terms
6.1 IB Biology: Digestion
Ingestion
Digestion
Absorption
Transport
Take into the body by swallowing or absorbing it.
The process of breaking down food by mechanical and enzymatic…
The process or action by which one thing absorbs or is absorb…
Refers to processes which cause heat energy, or particles, or…
Ingestion
Take into the body by swallowing or absorbing it.
Digestion
The process of breaking down food by mechanical and enzymatic…
30 terms
IB Biology Command Terms
Distinguish
Estimate
Compare
Construct
Give the differences between two or more items
Find an approximate value for an unknown quantity
Give an account of similarities and differences between two,…
Represent or develop in a graphical form
Distinguish
Give the differences between two or more items
Estimate
Find an approximate value for an unknown quantity
10 terms
2.4 IB Biology Terms
Polypeptide
Condensation
Hydrolysis
R-Group
A chain of amino acids
A reaction used to join amino acids (or other monomers)
Used to break up a chain of amino acids (or any polymer)
A unique chemical combination that contributes to an amino ac…
Polypeptide
A chain of amino acids
Condensation
A reaction used to join amino acids (or other monomers)
100 terms
IB Biology Cell Biology
What is the hierarchy of cell biology?
What is the Cell Theory (3 statements)?
What are 4 common characteristics of c…
Atypical examples of cells (4)? What a…
atoms > molecule > cell > tissue > organ > body system > orga…
1) Cells are smallest unit of life.... 2) All living things are…
- membrane separates internal/external environments... - genetic…
- striated muscle (fibers, unusually large, multiple nuclei)…
What is the hierarchy of cell biology?
atoms > molecule > cell > tissue > organ > body system > orga…
What is the Cell Theory (3 statements)?
1) Cells are smallest unit of life.... 2) All living things are…
52 terms
IB Biology
What is lactase used for?
How do prokaryotic cells divide?
What events occur during the G1 stage…
What happens during the G2 stage of in…
To improve the digestion of milk by some people
binary fission
G1: cell grows... S: DNA replicates
Protein synthesis
What is lactase used for?
To improve the digestion of milk by some people
How do prokaryotic cells divide?
binary fission
52 terms
IB Biology Topic 4 : Ecology
Ecology
Organism
Species
Population
The science of the relationships between organisms and their…
an individual living thing that uses energy, reproduces, resp…
a group of similar organisms that can breed and produce ferti…
group of individuals of the same species that live in the sam…
Ecology
The science of the relationships between organisms and their…
Organism
an individual living thing that uses energy, reproduces, resp…
19 terms
IB Biology 4.1 Ecology
Species
Population
Community
Autotrophs
Groups of organisms that can potentially interbreed to produc…
Groups of organisms of the same species, who live in the same…
Populations of different species living together and interact…
Absorb CO2, H2O and inorganic nutrients such as nitrates from…
Species
Groups of organisms that can potentially interbreed to produc…
Population
Groups of organisms of the same species, who live in the same…
72 terms
IB Cell Biology definitions
phospholipid bilayer
cell membrane
fluid mosaic model
semipermeable membrane
plasma membrane layers composed of phospholipid molecules arr…
double-layer of phospholipids that forms a boundary between a…
model that describes the arrangement and movement of the mole…
A membrane that allows some molecules to pass through but doe…
phospholipid bilayer
plasma membrane layers composed of phospholipid molecules arr…
cell membrane
double-layer of phospholipids that forms a boundary between a…
52 terms
IB Biology Topic 5 Evolution
Adaptive radiation
Artificial selection
Continuous variation
Discontinuous variation
the diversification of several new species from a recent ance…
the human intervention in animal or plant reproduction to ens…
the variation in phenotypic traits in species. ... a series of t…
the variation in phenotypic traits in which types are grouped…
Adaptive radiation
the diversification of several new species from a recent ance…
Artificial selection
the human intervention in animal or plant reproduction to ens…
33 terms
IB Biology
2.1.1 Outline the cell theory.
2.1.2 Discuss the evidence for the cel…
2.1.3 State that unicellular organisms…
2.1.4 Compare the relative sizes of mo…
The cell theory states that: ... ... All living organisms are com…
When these cells were taken from tissues they were able to su…
2.1.3 State that unicellular organisms carry out all the func…
A molecule = 1 nm... Thickness of cell membrane = 10 nm... Viruses…
2.1.1 Outline the cell theory.
The cell theory states that: ... ... All living organisms are com…
2.1.2 Discuss the evidence for the cel…
When these cells were taken from tissues they were able to su…
27 terms
IB Biology Command Terms
Define
Draw
Label
List
Give the precise meaning of a word, phrase, concept or physic…
Represent by means of a labelled, accurate diagram or graph,…
Add labels to a diagram.
Give a sequence of brief answers with no explanation.
Define
Give the precise meaning of a word, phrase, concept or physic…
Draw
Represent by means of a labelled, accurate diagram or graph,…
33 terms
IB Biology
2.1.1 Outline the cell theory.
2.1.2 Discuss the evidence for the cel…
2.1.3 State that unicellular organisms…
2.1.4 Compare the relative sizes of mo…
The cell theory states that: ... ... All living organisms are com…
When these cells were taken from tissues they were able to su…
2.1.3 State that unicellular organisms carry out all the func…
A molecule = 1 nm... Thickness of cell membrane = 10 nm... Viruses…
2.1.1 Outline the cell theory.
The cell theory states that: ... ... All living organisms are com…
2.1.2 Discuss the evidence for the cel…
When these cells were taken from tissues they were able to su…
126 terms
IB Biology
What does it mean to be alive? (7)
Totipotent stem cells
Pluripotent stem cells
Multipotent
- maintain homeostasis... - respond to stimuli... - adapt and evolv…
Unlimited capability and have the ability to form the embryo…
Capable of developing into every cell... Source: Blastocyst
Give rise to cells that have specific function... Source: Bone…
What does it mean to be alive? (7)
- maintain homeostasis... - respond to stimuli... - adapt and evolv…
Totipotent stem cells
Unlimited capability and have the ability to form the embryo…
14 terms
IB Biology
Organic
4 classes of organic molecules
Covalent bonds
Ionic Bonds
-contains carbon and synthesized by living organism
-carbohydrates, protein, lipids and nucleic acids
-a molecular bond that involves the sharing of electrons
-transfer of valence electrons between atoms
Organic
-contains carbon and synthesized by living organism
4 classes of organic molecules
-carbohydrates, protein, lipids and nucleic acids
18 terms
IB Biology Climate Change
Aerosol
Bio-fuel
Biomass
Carbon Dioxide (CO2)
A collection of tiny solid or liquid particles in the atmosph…
A type of fuel produced from plants or other forms of biomass…
Material that comes from living things, including trees, crop…
A colourless, odorless greenhouse gas produced naturally when…
Aerosol
A collection of tiny solid or liquid particles in the atmosph…
Bio-fuel
A type of fuel produced from plants or other forms of biomass…
29 terms
IB Biology Command Terms
define
draw
label
list
give the precise meaning of a word, phrase or physical quantity
represent by means of a labelled, accurate diagram or graph,…
add labels to a diagram
give a sequence of names or other brief answers with no expla…
define
give the precise meaning of a word, phrase or physical quantity
draw
represent by means of a labelled, accurate diagram or graph,…
23 terms
IB Biology
RNA
DNA
Hydrogen Bond
1953 Watson and Crick
single stranded ribo nucleic acid ... A,U,C,G
double helix deoxyribonucleic acid ... A,T,C,G
a weak bond between the two nitrogenous bases of the DNA
discovered of DNA, by using x-ray images and comparing to kno…
RNA
single stranded ribo nucleic acid ... A,U,C,G
DNA
double helix deoxyribonucleic acid ... A,T,C,G
30 terms
IB Biology Command Terms
define
draw
label
list
give the precise meaning of a word, phrase or physical quantity
represent by means of pencil lines
add labels to a diagram
give a sequence of names or other brief answers with no expla…
define
give the precise meaning of a word, phrase or physical quantity
draw
represent by means of pencil lines
35 terms
IB Biology Topic 1
Cell Theory
Functions of Life
Surface area to volume ratio
Cell differentiation
-all organisms are composed of one or more cells... -cells are t…
-metabolism... -reproduction... -homeostasis... -excretion... -growth... -re…
-as the width of an object such as a cell increases, the surf…
-the differentiation process is the result of the expression…
Cell Theory
-all organisms are composed of one or more cells... -cells are t…
Functions of Life
-metabolism... -reproduction... -homeostasis... -excretion... -growth... -re…
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