Cells

Which structure controls what enters and leaves the cell?

• cell wall

• cell membrane

• cytoplasm

• nucleus

Which of the following are NOT found in animal cells?

• cell wall and cell membrane

• chloroplasts and cytoplasm

• chloroplasts and cell wall

• mitochondria and nucleus

Which level of organisation is in order from smallest to largest?

• cells, organs, tissues, organ systems

• cells, tissues, organs, organ systems

• tissues, cells, organ systems, organs

• organ system, organs, tissues, cells

What is a group of organs working together called?

• cellular system

• organism

• organ system

• tissue system

Which of the following is NOT made of cells?

• A dog

• A carrot

• A piece of candy

• A piece of wood from a tree

The type of organelle that produces energy for the cell is called ___________.

• chloroplast

• cytoplasm

• mitochondria

• nucleus

Where does photosynthesis take place in a plant cell?

• in the cytoplasm

• in the chloroplasts

• in the nucleus

• everywhere in the cell

What is the function of a cell nucleus?

• to control movement of substances

• to control cellular activity

• to produce energy

• to remove waste products

How many cells do bacteria have?

• 0

• 1

• 1 million

• 30 trillion

How many chromosomes does a human have in each body cell?

• 22 pairs

• 23 pairs

• 44 pairs

• 46 pairs