unit 1 vocabulary cell asexual reproduction dna hypothesis homeostasis theory controlled experiment...

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