unit 1 vocabulary cell asexual reproduction dna hypothesis homeostasis theory controlled experiment...
TRANSCRIPT
UNIT 1 Vocabulary
• Cell
• Asexual reproduction
• DNA
• Hypothesis
• Homeostasis
• Theory
• Controlled experiment
• Scientific method
• Classification
• Taxonomy• Variable• Dichotomous key• Bacteria• Binary Fission• Diffusion• Osmosis• Prokaryotic Cells
Smallest unit of life that contains all the materials necessary for
life.• Cells
The genetic material found in all living organisms• DNA
The ability for all living things to maintain a stable internal
environment is called
• Homeostasis
An experiment that tests only one variable at a time
• Controlled experiment
The arrangement of organisms into orderly groups based on their
similarities
• Classification
The factor in a controlled experiment that can change
• Variable
The smallest and simplest organisms on the planet
• bacteria
The tendency of molecules to move from an area of high
concentration to an area of low concentration
• Diffusion
A single parent produces offspring that are identical to the
parent.• Asexual reproduction
A hypothesis that has been supported by lots of evidence and
experiments• Theory
The diffusion of water molecules from an area of high concentration to low
concentrationOsmosis
A series of steps a scientist uses to answer or solve a problem
• Scientific method
Tool used to identify unknown organisms
Dichotomous Key
A cell with no nucleus Example: Bacteria
• Prokaryotic cell
A possible explanation or answer to a scientific question
• hypothesis
Type of asexual reproduction used by bacteria, one cell splits
into two.
• Binary Fission
The science of identifying, classifying, and naming living
organisms
• Taxonomy
Found in all cells of living organisms, and contains the
blueprint of life.
• DNA
The movement of molecules from an area of high
concentration to an area of low concentration.
• Diffusion
Now it will get a bit harder…I will give you only two or three words and you will need to give
me the vocabulary word they define.
Vocabulary
• Cell
• Asexual reproduction
• DNA
• Hypothesis
• Homeostasis
• Theory
• Controlled experiment
• Scientific method
• Classification
• Taxonomy• Variable• Dichotomous key• Bacteria• Binary Fission• Diffusion• Osmosis• Prokaryotic Cells
Steps scientist take
Scientific Method
Smallest unit of life
Cells
Possible explanation
Hypothesis
Supported by Evidence
Theory
Genetic Material
DNA
No nucleus
Prokaryotic Cell
Identify, classify, naming
Taxonomy
Stable, internal, environment
Homeostasis
Cell Division, asexual
Binary Fission
Grouping by similarities
Classification
Diffusion of Water
Osmosis
Molecules, High to low
Diffusion
Tool to identify
Dichotomous key
One parent, identical
Asexual reproduction
Factor that changes
Variable
Now a bit harder…. I will show you a picture.. What word does it
describe?
Dichotomous Key
Diffusion
Binary Fission
DNA
Cells (building blocks of Life)
Taxonomy
Scientific Method
Prokaryotic Cell
Osmosis
Homeostasis
Bacteria Review
Which of these characteristics describe bacteria?
a) Unicellular
b) No Nucleus
c) Has a cell Wall
d) Reproduces asexually
e) All of the above
This Bacteria cell is reproducing by which method?
Asexual reproduction- ONE parent
Binary Fission
An organism made up of only one cell is called?
Unicellular Organism
What are the two kingdoms of bacteria?
Archaebacteria Eubacteria
A cell with no nucleus is called ___________
Prokaryotic cell- NO NUCLEUS!
The genetic material found in all living organisms is called _____.
Blue print of Life
DNA
The building blocks of Life, also contains all materials necessary
for life.
Smallest unit of Life
Cells
Bacteria can move using a long whip-like tail called a _______
Flagella
What tool can scientist use to identify organisms?
Dichotomous Key
After forming a hypothesis, a scientist can….
Set up a controlled experiment
Name an organism that reproduces by binary fission.
E-coli, streptococcus, halophiles, methanogens, thermophiles
Transport in which molecules move from a LOW concentration to an area of High concentration.
Active Transport
The diffusion of water is called _________.
Osmosis
The ability to maintain a stable internal environment is called
___________.
Homeostasis
Name the 4 eukaryotic kingdoms
Plants, Protist, Animal, Fungi
• They all HAVE nuclei in their cells.
What did Carleus Linneaus do?
Came up with the science of Taxonomy.
Which of the following is NOT a characteristic of all living things
a)Obtain and use energy
b) Reproduce either sexually or asexually
c) Respond to stimuli in their environment
d) Adapt to changes in the environment
e) Move to obtain their food and water
f) Are unicellular or multicellular
NOT a Characteristic
e) Move to obtain their food and water
An organism that can make its own food using energy from the
sun is called• Producer or Autotroph
An organism that breaks down the remains of dead organisms
• Decomposer
What shape is the bacteria below?
Baccilli
What shape is this bacteria?
Spirilla
What process of active transport is occurring below?
Endocytosis
What is the arrow pointing to?
Flagellum
What is the arrow pointing to?
DNA
Which of the following is a decomposer?
A
B
C
Name The Kingdom
• Unicellular
• No nucleus
• Has a cell wall
• Decomposer
• Lives in a salty environment
ARCHAEBACTERIA
Name The Kingdom
• Multicellular
• Autotroph
• Has a cell wall
• Has a chloroplast for photosynthesis
• Ex: Rose Bush
Plant
Name The Kingdom
• Multicellular
• Heterotroph
• No cell Wall
• Very complex
Animal
Name the Kingdom
• Unicellular
• No Nucleus
• Asexual Reproduction
• Found Everywhere
• Example: E. coli
Eubacteria
Multiple Choice
Carlous Lineaus is given credit for
a) Discovering the cell
b) Coming up with a way to classify and name organisms
c) Inventing the microscope
d) First using a dichotomous key
Which of the following best describes bacteria?
a) Single-celled, have a nuclei
b) Single-celled, do not have a nuclei
c) Multi-celled, have a nuclei
d) Multi-celled, have no nuclei
______ feed on dead matter and recycle nutrients back into the soil.
a) Producers
b) Consumers
c) Aerobes
d) decomposer
The three main types of archaebacteria are
a) methane-makers, salt lovers, heat lovers
b) Soil lovers, oxygen lovers, water lovers
c) Multicellular, Unicellular, Prokaryotic
d) Eukaryotic, Prokaryotic, Unicellular
Which of the following requires no energy from the cell?
a) Osmosis
b) Endocytosis
c) Exocytosis
d) None of these
Which of the following in NOT a common shape of bacteria?
a) Spherical
b) Spiral
c) Cubic
d) Rod-shaped
Which of the following would use binary fission to reproduce?
A B
C
D
What type of reproduction is being shown in the picture?
A) Binary Fission
B) Sexual Reproduction
C) Asexual Reproduction
D) Fragentation
At which point in conducting a controlled experiment should a conclusion be drawn?
A) As soon as the procedure is plannedB) As the variables are selectedC) Once the hypothesis is developedD) After the data is obtained and analyzed
A student wanted to look at plant growth in five different soil samples. He planted the same type of seeds in identical containers and left them together in full sunlight. He gave each plant the same amount of water and charted the growth of each plant stem. What is being tested in this experiment?
A) Which soil type helped plants grow best?
B) How much light do plants need?
C) Which container do plants grow best in?
D) Do plants need to start from seeds?
The scientific name for the common house cat is Felis domesticus. What
is its species name?
A) Felis
B) Domesticus
C) Cat
D) None of the above
Which question cannot be answered scientifically because the quantity
cannot actually be measured?
a) How happy is a chimpanzee when it finds it’s food?
b) How fast can a swallow-tailed butterfly fly?
c) How heavy is a mature female elephant?d) How much food can a water buffalo
consume in one day?
A biology class in Virginia conducted a survey of the plant species found on their school grounds. They found several plants that they didn’t recognize. What resources would be most helpful to the class in identifying the plants species?
a) A book about Virginia plant adaptations
b) A biology book
c) A dichotomous key on Virginia plant species
d) Local Home and Garden Newspaper Articles.
A prediction was made that the best conditions for earthworm growth occur when there are fewer than five earthworms per
cubic meter of soil. This prediction is called a
A) Law
B) Theory
C) Hypothesis
D) Conclusion
18. Single-celled organisms can reproduce and create cells exactly like themselves without combining genes from two different parent cells. When they do this, they use a type of
a. asexual reproduction.
b. gamete formation.
c. natural selection.
d. sexual reproduction.
The tendency of molecules to move from an area of High concentatrion to an area of Low concentration, ________________.A) endocytosisB) ExocytosisC) MitosisD) Diffusion