Characteristics of leaving things Flashcards
(25 cards)
What is the first characteristic of living things?
- All living things are made out of cells
- Made out of one or more cells
- Cells are the basic unit of life
- Able to carry out life processes
List some life processes of a cell
- Break down nutrients
- Build molecules
- grow
- Copy genetic material
- Heal
- Excrete waste
What is a single-celled organism identified as?
- Unicellular
What is a multi-celled organism identified as?
- Multicellular
What is the second characteristic of life?
- All living things take in nutrients
- Substances organisms need to survive
- Most organisms get the nutrients they need by
consuming food
What is the difference between a producer and a consumer?
- A consumer gets nutrients by consuming food
- A Producer gets nutrients by the food they make for themselves.
What is the third characteristic of life?
- Living things use energy
- To carry out life processes
How is energy released?
- Energy is released through a process called cellular
respiration- Surgery and oxygen get converted to carbon, water and carbon dioxide
What is the process of photosynthesis?
- Carbon, water and suns energy get converted to sugar and oxygen.
What is the fourth characteristic of organisms?
- living things produce waste that must be removed
- Produce harmful waste that is removed through life
processes- All cells have structures that store and remove
waste- Unicellular and Multicellular organisms both
contain different structures that excrete waste
- Unicellular and Multicellular organisms both
- All cells have structures that store and remove
- Produce harmful waste that is removed through life
How does a multicellular organism excrete waste?
- Multicellular organisms contain structures or systems
that collect and excrete waste- E.g
- Kidneys
- E.g
How does a unicellular organism excrete waste
- Some waste passes across the outer membrane of
the cell - Other waste is expelled from the cell through a
structer called the vesicle
What is the fifth characteristic of a living organism?
- Living things respond to stimuli
- Stimuli is anything that causes a organism to react in
a certain way
- Stimuli is anything that causes a organism to react in
What is internal stimuli?
- Stimuli that occers inside the hosts body.
- Living organisms respond to internal stimuli
What is external stimuli?
- Stimuli that occurs outside of the hosts body.
- Living organisms respond to external stimuli
How does a multicellular organism respond to stimuli?
- Multicellular organisms have sense organs and/or a
nervous system to respond to stimuli
What is the 6th characteristic of life?
- Living things grow and develop
- -> Grow = Get larger in quantaty/size of cell
- -> Develop = Structeral changes
How does a unicellular organism grow?
- They grow by increasing their size
How does a multicellular organism grow?
- Increasing their quantity of cells.
What is the seventh characteristic of living things?
- All organisms reproduce
- Produce more of themselves to pass on their genetic material ( DNA or Rna)
What does DNA and RNA stand for?
- DNA = Deoxyribonucleic Acid
- RNA = Ribonucleic Acid
How do unicellular organisms reproduce?
- Many unicellular organisms reproduce by dividing into
two cells- Asexual reproduction
How do multicellular organisms reproduce?
- By sexual reproduction
- Two parents; offspring are genetically different than
the parents.
- Two parents; offspring are genetically different than
How does asexual reproduction work?
- One parent; offspring identical to the parent
