Cells

A cell is...

• A living thing

• A big molecule

• The smallest unit of life

• A non living particle

Name this organism

• Virus

• Bacteria

• Fungi

• Insect

Which of the following is true about this organism?

• It is a multicellular organism with eukaryotic cells

• It is a unicellular organism with an eukaryotic cell

• It is a multicellular organism with prokaryotic cells

• It is a unicellular organism with a prokaryotic cell

Identify similarities between the following cells

• They both have DNA and ribosomes

• They both have mitochondria and cytoplasm

• They both have cell membrane and rough endoplasmic reticulum

• They both have smooth and rough endoplasmic reticulum

Why is the cell membrane so important?

• It controls which substances that enter and leave the cell

• It is in charge of producing proteins

• It is in charge of producing energy in the cell

• It is in charge of processing molecules

How do these organelles help a cell to function properly?

• They produce energy

• They hold the genetic information

• They make photosynthesis

• They process important molecules for the cell

How does a cell obtain the energy it needs to perform all its functions?

• Thanks to the role of the cytoplasm

• Thanks to the DNA which contains genetic information

• Thanks to the mitochondria which makes a process called cellular respiration

• Thanks to the vacuoles which store water and important substances

Which type of cell is shown in the picture?

• Animal cell

• Plant cell

• Human cell

• Prokaryotic cell

What is the difference between the cell wall and the cell membrane?

• The cell wall is semipermeable while the cell membrane does not allow substances to pass through it

• The cell wall provides protection to an animal cell while the cell membrane is a semipermeable layer in every cell in the world

• The cell wall is impermeable while the cell membrane allows all substances to pass through it

• The cell wall provides protection to a plant cell while the cell membrane is a semipermeable layer in every cell in the world

Where and why do you expect to find this organelle?

• In bacteria because they are complex organisms

• In an animal cell because animals need chloroplasts

• In a plant cell because plants make photosynthesis

• In a human cell because humans need to produce their own sugar