is a way of thinking that gives us freedom to identify of problems.
Elements is a visible component of a system.
What are the System Components?
Adaptiveness
Elements
Resilience
Evolution
Interconnections
Self-organising
Function
are accumulations of information, material or psychological states that build up of diminish over time through the actions of flows.
are the filling or draining process that change the amount of stock over time.
Interconnections is how the system behaves.
--> Cells --> --> Organs and organ systems --> --> --> Biosphere
Mitochondria and Chloroplasts are organelles.
What does a mitochondria do?
Produce energy to power the cell.
Enable green plants to utilise the energy in sunlight to make sugars.
Only some living things are made of cells.
What are prokaryotes?
Have a membrane-bound nucleus
Do not have membrane-bound nuclei
Have membrane-bound organelles
Does not have organelles
Single-celled
What are eukaryotes?
Colonial organisms
Do not have a membrane-bound nuclei
is a group of similar cells carrying out similar or related function.
are a collection of tissues grouped together performing a common function.
are individual living entities.
Kevin walks inside a dim building on a sunny day. Once inside, his eyes dilate to allow more light into his eyes. What property of life does this represent?
Energy use
Response to stimuli
Growth
A/n__________ can represent the simplest living thing.
cell
atom
organelle
To function properly, cells need to have appropriate conditions.
Homeostasis
Order
Reproduction
Growth and development
Regulation
Energy processing
All organisms use a source of energy for metabolic activities.
Energy Processing
Multicellular organisms often produce specialised reproductive germline cells that will form new individuals
is the capacity to do work.
Energy at rest or stored energy.
Kinetic energy
Potential energy
Energy at motion or free energy.
Examples of renewable energy
Solar energy
Hydropower energy
Fossil fuel oil
Biomass energy
Coal
Natural gas
Nuclear energy
Wind energy
Geothermal energy
resources supply the bulk of our energy needs.
Which characteristic is unique to prokaryotic cells?
Contains a nucleoid
Has ribosomes
Has a cell membrane
According to the 1st law of thermodynamics, energy can be transformed or transferred and can also be destroyed and created.
The 1st law of thermodynamics is also known as the .
According to the 2nd law of thermodynamics, in every energy transfer or transformation, some energy is converted into heat energy.
According to the 2nd law of thermodynamics, in every energy transfer or transformation, some energy is converted into .
Prokaryotes are photosynthetic organisms.
Most of these organisms are photosynthetic.
Heterotrophs
Autotrophs
Organisms in each trophic level pass on more energy to the next trophic level than they received
Geographical representation of ________ present in a unit area of various trophic levels.
Pyramid of numbers
Pyramid of biomass
Pyramid of energy
Quantifying of the transfer of energy from one organism to another.
Shows number of organisms at each trophic level.
Energy moves in one direction, matter cycles.
Energy flow through the biosphere is determined by feeding relationships.
Organisms depend on the energy flow from the trophic levels below them for survival.
Biogeochemical cycles important to living organisms include the , , , , and cycles.
are ways in which an element or compound moves between its various living and non-living forms and locations in the biosphere.
are the basic unit of life
is a semi-fluid, jelly-like substance in which subcellular components are suspended.
Composed of phospholipid barrier with embedded proteins, the is the selective barrier that separates the interior of all cells from the outside environment.
carry genes in the form of DNA.
are tiny complexes that make proteins according to instructions from the genes.
The components of a prokaryotic cell include: plasma membrane, cytoplasm, DNA, and ribosomes
The prokaryotic cell has the following components:
plasma membrane
pili
endoplasmic reticulum
nucleoid
flagella
cytoplasm
ribosome
cell wall
nucleus
golgi apparatus
The eukaryotic cell has the following components:
cytoskeleton
"Omnis cellula e cellula"
Which of the following shows the correct sequence of the cell cycle?
C --> M --> G1 --> S --> G2
S --> G1 --> G2 --> M --> C
G1--> G2 --> S --> M --> C
The process where the cytoplasm divides is called ______.
Anaphase
Telophase
Cytokinesis
Prophase
The following have Prokaryotic cells
Bacteria
Animals
Archaea
Fungi
Plants
The following have eukaryotic cells
Humans
Cell division only happens in eukaryotic cells.
A mature haploid male or female germ cell which is able to unite with another of the opposite sex in sexual reproduction to form a zygote.
Chromosomes
Gamete
Cell
Human somatic cells have chromosomes, made up of two sets of , one from each parent.
In DNA replication, Adenine pairs with_________.
Guanine
Thymine
Cytosine
Adenine
Uracil
In DNA replication, Cytosine pairs with____________.
In DNA transcription, Adenine pairs with____________.
In DNA transcription, Adenine pairs with Thymine.
The DNA backbone is made up of sugar and glucose.
Interphase ---> G1 ---> S ---> G2 ---> Mitosis ---> Prophase ---> Anaphase ---> Metaphase ---> Telophase ---> Cytokinesis
A refers to the identical copies (chromatids) formed by the DNA replication of a chromosome, with both copies joined together by a common centromere
An organism that has two different alleles of a gene.
Homozygous dominant
Homozygous recessive
Heterozygous
The states that allele frequencies remain constant from generation to generation.
Diploid organisms, all animals and many plants, have two copies of an allele, one from each parent.
The Hardy-Weinberg principle calculates the proportion of the population with a given combination of alleles, or genotype.
In population genetics, evolution is defined as a change in the frequency of alleles (versions of a gene) in a population over time.
Genetic drift is change in allele frequencies in a population from generation to generation that occurs due to chance events.
A population will evolve if it meets the assumptions of the Hardy-Weinberg principle.
Identify the type of genetic drift: When a new colony is started by a few members of the original population.
Founder effect
Bottleneck effect
Identify the type of genetic drift: change of gene pool due to a drastic reduction of population caused by volcanic eruptions, earthquakes etc. survivors of this change will create a new gene pool.
The process of is responsible for gamete formation.
are the basic physical and functional unit of heredity. made up of DNA.
is when a single individual is a sole parent and passes copies of all its genes to its offspring without the fusion of gametes.
are alternative versions of a gene
Determines an organism's appearance
Dominant allele
Recessive allele
Has no noticeable effect on the organism's appearance.
Genetic makeup of an organism.
Genotype
Phenotype
Observed trait or appearance of an organism.
Three types of Mendelian pattern of inheritance: , , .
is when one gene is able to affect multiple phenotypic characteristic.
is when a single phenotypic character is affected by two or more genes.
is the inheritance of traits from two parents that produces offspring with characteristic that are intermediate between those of the parents.
When parents pass on genes that retain their separate identities in an offspring.
Particulate hypothesis
Blending hypothesis
A is an interacting group of individuals of the same species that occupy a given space and time.
A is a statistical study of populations.
is the number of births in a given time.
is variation and richness of life at a particular scale.
Variety of species. Measures of abundance, distribution and functions or interactions within a given spatial context.
Genetic biodiversity
Species diversity
Ecosystem diversity
Sum total of information contained in the gene of species.
Distribution and abundance of habitats.
Variety of biological processes
Structural biodiversity
Compositional biodiversity
Functional biodiversity
Type of elements and number of representatives present at each level.
Essential roles critical to the functioning of the ecosystem.
Umbrella species
Indicator species
Flagship species
Keystone species
Serve as symbols and rallying points to stimulate conservation awareness and action.
Require such large areas of habitat that their protection might automatically protect a large number of naturally co-occurring species in several ecosystems and habitats.
Transmission of traits from one generation to the next.
Variation
Heredity
Genetics
Offsprings are not identical copies of parents.
Scientific study of heredity and hereditary.
Process in which DNA makes copies of DNA.
Translation
Replication
Transcription
Process from DNA to mRNA.
Process from mRNA to protein.