Organisms revision!

Organisms revision!

Multicellular vs unicellular organisms

Multicellular organisms are made of lots of cells

Unicellular organisms are made of just one type of cell

Multiple Choice

Humans are

• multicellular

• unicellular

Multiple Choice

Bacteria are

• multicellular

• unicellular

Multiple Choice

Fish are

• multicellular

• unicellular

Euglena and Amoeba

• Euglena and amoeba are two more examples of unicellar organisms

• Study this picture of an amoeba carefully

Multiple Choice

Name one thing that amoeba have that animal cells don't have

• Nucleus

• Membrane

• Cytoplasm

• Pseudopods

Multiple Choice

What part of the amoeba controls the cell's activity and contains genetic information?

• Nucleus

• Membrane

• Cytoplasm

• Pseudopods

Multiple Choice

What part of the amoeba controls what goes in an out of the cell?

• Nucleus

• Membrane

• Cytoplasm

• Pseudopods

Multiple Choice

What part of the amoeba helps it move?

• Nucleus

• Membrane

• Cytoplasm

• Pseudopods

Levels of organisation

Cells are the building blocks of life.

A group of cells working together is called a tissue.

Tissues work together to form organs

Organs work together to form organ systems

These make up an entire organism.

Multiple Choice

What are the building blocks of life

• Cells

• Tissues

• Organs

• Organ systems

• Organisms

Multiple Choice

The lungs are examples of

• Cells

• Tissues

• Organs

• Organ systems

• Organisms

Multiple Choice

The circulatory system and reproductive system are examples of

• Cells

• Tissues

• Organs

• Organ systems

• Organisms

Multiple Choice

Birds are examples of

• Cells

• Tissues

• Organs

• Organ systems

• Organisms

Multiple Choice

Bone is an example of

• Cells

• Tissues

• Organs

• Organ systems

Multiple Choice

What is the organ system responsible for protecting the body against infection?

• Reproductive system

• circulatory system

• Immune system

• Respiratory system

• Digestive system

Multiple Choice

What is the organ system responsible for creating offspring (new organisms)?

• Reproductive system

• circulatory system

• Immune system

• respiratory system

• Digestive system

Multiple Choice

What is the organ system responsible for breaking down and absorbing food?

• Reproductive system

• circulatory system

• Immune system

• respiratory system

• Digestive system

Multiple Choice

What is the organ system responsible for transporting substances around the body in the blood?

• Reproductive system

• circulatory system

• Immune system

• respiratory system

• Digestive system

Multiple Choice

What is the organ system responsible for taking in oxygen and removing carbon dioxide?

• Reproductive system

• circulatory system

• Immune system

• respiratory system

• Digestive system

Bones

Bones are living tissue in your body.

They contain calcium and other minerals. They are alive and can repair themselves if damaged.

Skeleton

Your skeleton is part of your muscular-skeletal system (where your bones and muscles work together).

The skeleton has four roles

- Movement

- Protecting organs

- Making blood cells

- Supporting your body and holding it upright

Open Ended

Where in the bone are blood cells made?

Multiple Choice

Which part of the skeleton protects your brain?

• Rib cage

• Skull

• Spinal cord

Multiple Choice

Which part of the skeleton protects your lungs?

• Rib cage

• Skull

• Spinal cord

Joints

Joints are where two or more bones meet

There are three types of joint

- Hinge joint

- Ball and socket joint

- Fixed joint

Multiple Choice

Your elbow can move 180 degrees. It is a

• Hinge joint

• Ball and socket joint

• Fixed joint

Multiple Choice

Your shoulder can move 360 degrees. It is a

• Hinge joint

• Ball and socket joint

• Fixed joint

Multiple Choice

The joints in your skull cannot move. They are

• Hinge joint

• Ball and socket joint

• Fixed joint

Open Ended

What are the ends of your bones covered with to stop them wearing away?

Multiple Choice

I connect two bones together. I am

• a ligament

• a tendon

• synovial fluid

Multiple Choice

I connect muscle to bones together. I am

• a ligament

• a tendon

• synovial fluid

Multiple Choice

I sit between joints to keep them slippery and prevent friction. I am

• a ligament

• a tendon

• synovial fluid

Muscles

Muscles are tissues found all over your body.

Some are very strong e.g. the muscles in your arm (biceps and triceps)

Others are weaker e.g. the muscles that make your hair stand up on end.

Open Ended

I connect muscle to bone. What am I?

(I begin with 't')

Multiple Choice

What is a tissue

• The building blocks of life

• A group of organs working together

• A group of cells working together

Muscles

Muscles always pull on bones, they don't push.

This means they have to work in pairs called antagonistic pairs.

When muscles contract they get shorter.

When muscles relax they get longer.

Multiple Choice

Muscles only pull and never push

• True

• False

Multiple Choice

Muscles work in...

• Amazing pairs

• Awful pairs

• Antagonistic pairs

• Ambitious pairs

Multiple Choice

When muscles relax they

• Get longer

• Get shorter

Multiple Choice

When muscles contract they

• Get longer

• Get shorter