Levels of Organization

Levels of Organization

Today we are going to look at the different levels of organization and how they build upon one another.

Life is organized into different levels based upon size (from small to large).

Multiple Choice

Which of the following is the correct order of organization in living things from most basic (simple) to most complex?

• organism, cell, tissue, organ, organ system

• organ system, organ, tissue, cell, organism

• cell, tissue, organ, organ system, organism

• cell, organ, tissue, organism, organ system

Levels of Organization

Non-living

Living

Simple

Complex

Biomolecule

Life begins! →

INCREASING COMPLEXITY

DECREASING COMPLEXITY

Organisms and Cells

• Some organisms are unicellular. This means they are made of only one cell. Ex: bacteria, yeast

• Some organisms are multicellular. This means they are made of many cells. Ex: humans, trees

The basic unit of life.

CELL

Cell

• The smallest unit of life (building blocks of life)

• Cells are specialized by size and shape for the job they do.

• Example: nerve cell, also called a neuron

Multiple Choice

The basic unit of structure and function of living organisms

• organ

• organ system

• cell

• tissue

• organism

Tissue

• The same type of cells grouped together that are working together to do a specific job.

• Ex: nerve tissue, muscle tissue

TISSUE

Specialized cells working together to perform a specific function.

Animal Tissue

Plant Tissue

Multiple Choice

A group of similar cells that work together to form the same function is called .......

• organ

• cell

• organ system

• organism

• tissue

Multiple Choice

What is the difference between a cell and a tissue?

• cell is basic unit of life; tissue is group of cells that work as one

• cell is group of tissues; tissue is basic unit of life

• cell is basic unit of life; tissue is groups of different cells

• cell is group of organs; tissue is group of different cells

ORGAN

A group of tissues working together to perform a specific
function.

PLANT ORGANS

Organ

• A bunch of tissues working together to do a job.

• Ex: brain, heart

Multiple Choice

A structure that is composed of different kinds of tissues

• organ

• cell

• organ system

• organism

• tissue

A group of organs working together to perform a specific
function.

ORGAN SYSTEM

Organ System

• A bunch of organs working together

• Ex: nervous system, circulatory system, digestive system, etc.

Multiple Choice

A group of organs that work together to perform a major function....

• organ

• cell

• organ system

• organism

• tissue

Organism

• All cells, tissues, organs, and organ systems working together makes an organism.

• Ex: human, animal

Multiple Choice

Any living thing made up of one or more cells....

• organ

• cell

• organ system

• organism

• tissue

Multiple Choice

Which of the following is the correct order of organization in living things from most basic (simple) to most complex?

• organism, cell, tissue, organ, organ system

• organ system, organ, tissue, cell, organism

• cell, tissue, organ, organ system, organism

• cell, organ, tissue, organism, organ system

Multiple Select

Please choose from the options below, which are levels of organization.

• cells

• organ

• body

• skin

• tissue

Levels of Organization

Non-living

Living

Simple

Complex

Biomolecule

Life begins! →

INCREASING COMPLEXITY

DECREASING COMPLEXITY

POPULATION

A group of plants, animals, or living organisms of the
same species.

COMMUNITY

A group of plants or animals living in the same place.

A biological community of interacting organisms which
include the biotic and abiotic factors.

ECOSYSTEM

BIOME

An ecosystem of plants and animals that have common
characteristics for the environment they live in.

Multiple Choice

Which of the following explains an ecosystem?

• an interacting group of various species in a common location

• all the organisms of the same group or species who live in a particular geographical area and are capable of interbreeding

• a biological community of interacting organisms and their physical environment

• a single individual, or being

Multiple Choice

Biologists organize the environment into ecological layers so they can communicate about the areas more efficiently. The diagram shows an example of the organization. If biologists were discussing an organism, which layer on the diagram would they most likely be referencing?

• Layer A

• Layer B

• Layer C

• Layer D

Multiple Choice

Biologists organize the environment into ecological layers so they can communicate about the areas more efficiently. The diagram shows an example of the organization. If biologists were discussing a population, which layer on the diagram would they most likely be referencing?

• Layer A

• Layer B

• Layer C

• Layer D

Multiple Choice

Biologists organize the environment into ecological layers so they can communicate about the areas more efficiently. The diagram shows an example of the organization. If biologists were discussing a community, which layer on the diagram would they most likely be referencing?

• Layer C

• Layer B

• Layer A

• Layer D

Multiple Choice

Biologists organize the environment into ecological layers so they can communicate about the areas more efficiently. The diagram shows an example of the organization. If biologists were discussing an ecosystem, which layer on the diagram would they most likely be referencing?

• Layer A

• Layer D

• Layer C

• Layer B

Multiple Choice

Biologists organize the environment into ecological layers so they can communicate about the areas more efficiently. The diagram shows an example of the organization. If biologists were discussing a howler monkey, which layer on the diagram would they most likely be referencing?

• Layer A

• Layer B

• Layer C

• Layer D

Multiple Choice

Biologists organize the environment into ecological layers so they can communicate about the areas more efficiently. The diagram shows an example of the organization. If biologists were discussing the African Savannah, which layer on the diagram would they most likely be referencing?

• Layer A

• Layer B

• Layer C

• Layer D

Multiple Choice

Place the categories in order from smallest to largest.

• ecosystem, community, population, organism

• organism, population, community, ecosystem

• population, ecosystem, community, organism

• organism, community, ecosystem, population

Plant and animal cells

have specialized

structures inside that

perform critical

functions for the cell.

these specialized
structures are

called organelles.

Multiple Choice

What are organelles?

• Organs that perform specialized functions.

• Muscles that perform specialized functions.

• Structures that perform specialized functions.

• Cells that perform specialized functions.

Plant and animal
cells are similar
because they are
eukaryotic cells.

eukaryotic cells
have a clearly
defined nucleus.

Multiple Choice

What is a eukaryotic cell?

• A cell that has no nucleus

• A cell that has a cell wall

• A cell that has a nucleus

• A cell that has organelles

many of the same
structures and
organelles can be
found in both plant
and animal cells.

These similar organelles
include: the nucleus, cell
membrane, chromosomes,
cytoplasm, mitochondria,
and vacuoles. (and many more)

the nucleus

controls the cell

activities and

production of new

cells.

Chromosomes are
threadlike and carry
information about the

characteristics of

the organism.

The Cell Membrane is a covering or barrier
that covers and holds the cell together and controls what comes in and out of the cell.

Cytoplasm is a jelly-like
substance that contains

chemicals for cell

functions. organelles
are suspended within it.

Vacuoles are structures that store water in the cell, waste and other materials.

mitochondria are

organelles that release

energy from food.

They’re considered the
powerhouse of the cell.

there are three structures
found in plant cells that
are not present in animal

cells: chloroplasts, a

central vacuole, and a cell

wall.

chloroplasts are

organelles that make

food for the cell.
(photosynthesis)

The central vacuole
helps to maintain
pressure inside the
plant cell.

The cell wall is a rigid
layer that supports and

protects the cell. It’s
located outside of the

cell membrane

Multiple Choice

Which organelle belongs in plant cells only?

• Cell Membrane
• Mitochondrion
• Chloroplast
• Nucleus

Multiple Choice

Which organelle belongs in plant cells only?

• Cytoplasm
• Mitochondrion
• Cell Wall
• Nucleus

Multiple Choice

Which organelle belongs in plant cells only?

• Cytoplasm
• Mitochondrion
• Large Central Vacuole
• Cell Membrane

Multiple Choice

Which organelle belongs in both plant and animal cells?

• Cytoplasm
• Chloroplast
• Large Central Vacuole
• Cell Wall

Multiple Choice

Which organelle belongs in both plant and animal cells?

• Chloroplast
• Mitochondrion
• Large Central Vacuole
• Cell Wall

Multiple Choice

Which organelle belongs in both plant and animal cells?

• Chloroplast
• Cell Wall
• Large Central Vacuole
• Cell Membrane

Multiple Choice

Which organelle belongs in both plant and animal cells?

• Chloroplast
• Cell Wall
• Large Central Vacuole
• Nucleus

Multiple Choice

Which organelle belongs in animal cells only?

• Chloroplast

• Cell Wall

• Many Small Vacuole

• Nucleus

Multiple Choice

Which of the following lists these levels in the correct order of organization from the simplest to the most complex?

• cells, tissues, organs, organ systems, organisms
• organisms, organ systems, organs, tissues, cells
• tissues, cells, organs, organisms, organ systems
• organs, organ systems, organisms, cells, tissues

Multiple Choice

Which of the following is the correct term used to describe a group of body parts such as (mouth, esophagus, stomach, small intestines, and large intestines) working together to perform a specific function?

• organism
• tissue
• organ system
• organ

Multiple Choice

This is a example of ........

• cell
• organ system
• organ
• tissue

Multiple Choice

 A group of cells that have similar functions? Examples are nervous, epithelial, muscle and connective

• cells
• tissues
• organs
• atoms

Multiple Choice

A group of tissues that perform a similar function is called_____. (Examples include the heart, lungs or stomach)

• cells
• tissues
• organs
• organ system

Multiple Choice

What organelle is called the "powerhouse" of a cell?

• Endoplasmic Reticulum
• Nucleus
• Mitochondria
• Nucleolus

Multiple Choice

The ___________ is the basic unit of life

• organ
• cell
• atom
• tissue

Multiple Choice

What are tiny organelles that convert glucose into ATP?

• Ribosomes
• Vesicles
• Cytoskeleton
• Mitochondria

Multiple Choice

A rigid layer that lies outside the cell's  membrane is...

• Cytoskeleton
• Cilia
• Cell Wall
• Flagella

Multiple Choice

What type of cell has a defined nucleus and membrane bound organelles.

• Bacteria
• Prokaryote
• Eukaryote
• Archaeabacteria

Multiple Choice

What type of cell does not have a defined nucleus or membrane bound organelles.

• Animal Cell

• Prokaryote
• Eukaryote
• Plant Cell

Multiple Choice

Organs are made up of ________.

• tissues
• organ systems
• organisms
• species

Multiple Choice

Tissues are made up of ________.

• organs
• organ systems
• organisms
• cells

Multiple Choice

Which of the following is the correct order of organization in living things from most basic (simple) to most complex?

• Organism, cell, tissue, organ, organ system

• Organ system, organ, tissue, cell, organism

• Cell, tissue, organ, organ system, organism

• Cell, organ, tissue, organ, organism, organ system

Multiple Choice

Where the genetic material is found in the cell 

• nucleolus
• cytoplasm
• nucleus
• chloroplast

Multiple Choice

A gel-like fluid it takes up most of the space inside the cell. 

• cytoplasm
• cell membrane
• vacuoles
• golgi body

Multiple Choice

A storage structure- in an animal cell there are many small ones, but in a plant cell there is just one large one.

• vacuole

• ribosomes

• golgi body

• chloroplast

Multiple Choice

Name two parts that are in the plant cell but that are NOT in an animal cell.

• cell wall and cell membrane

• cell membrane and chloroplasts

• cell wall and chloroplasts

• cell wall and cytoplasm

Multiple Choice

What kind of cell is this?

• Prokaryotic

• Eukaryotic

Multiple Choice

Plants and animal cells are examples of ___ cells 

• prokaryotic cells 
• eukaryotic cells 

Multiple Choice

What type of cell is pictured?

• Prokaryotic
• Eukaryotic
• Plant
• Animal

Multiple Choice

Which cells have DNA?

• Prokaryotic

• Eukaryotic

• Both

Multiple Choice

Where is the DNA found in a prokaryotic cell? 

• floating around in the cytoplasm 
• in the nucleus 

Match

Match the organelle to its description.

• Proteins are made on these small structures.

• Controls all activity in the cell (the brain) and stores DNA

• The fluid that fills the cell and

  keeps the organelles in place

• Power plant of the cell. They

  create energy called ATP.

• Outer lining the cells.

  Controls what goes

  in and out.

Ribosomes

Nucleus

Cytoplasm

Mitochondrian

Cell Membrane

• Ribosomes

• Nucleus

• Cytoplasm

• Mitochondrian

• Cell Membrane

Multiple Choice

A _____ is a group of individuals within the same species, within the same area, and that are capable of reproducing with one another.

• Population

• Community

• Ecosystem

• Biome

Multiple Choice

A _____ is the populations of two or more species within the same geographical area and time period.

• Biome

• Ecosystem

• Community

• Population