Concept 1.1

The smallest tiny structures that build up all living organism’s bodies are …………………….

• Systems

• Cells

• Organs

• Bricks

We can see the cell of ………………… without using a microscope.

• Bacteria

• Plant

• Human

• Bird’s egg

The …………….. is responsible for the entry and exit of water into and out the cell.

• Cell wall

• Cytoplasm

• Cell membrane

• Mitochondria

Growth of a living organism is resulted from increasing the …………….. of cells in its body.

• Length

• Size

• Number

• Mass

The number of cells which build up a baby’s body is ……………….. the number of cells which build up his father’s body.

• More than

• Equal to

• Less than

• Double

The two cell organelles which are responsible for transportation process are ………………………

• Mitochondria and Golgi apparatus

• Endoplasmic reticulum and Golgi apparatus

• Endoplasmic reticulum and mitochondria

• Mitochondria and chloroplasts

The structure(s) found in the cell of a banana tree leaf and not found in the cell of a cat is/are ……………….

• Cell membrane only

• Cell wall only

• Cell membrane and nucleus

• Cell wall and nucleus

Microscopes help scientists to discover that ……………… is the building unit of the living organism’s bodies.

• Brick

• Cell

• The sun

• Energy

The body of simple living organism as bacteria consists of ………………..

• One cell only

• Different cells

• Many cells

• Ten cells only

You can see the cells of all the following under microscope, except ……………….

• Onion

• Human skin

• Leaf

• Stone