Plant Cell Review Quiz

The smallest structural unit that makes up every living organism is a …

• tissue

• organ

• cell

• organ system

A microscope makes a leaf cell look larger because it …

• refracts

• magnifies

• reflects

• polarises

Plant cell walls are mainly made of …

• protein

• cellulose

• starch

• chitin

The chief role of the cell wall is to …

• store energy

• direct cell activities

• keep the cell strong and in shape

• carry oxygen into the cell

The cell membrane is described as “very thin and flexible” because it …

• is completely rigid

• allows only water through

• controls what enters and leaves the cell

• blocks all substances

The jelly-like material where most chemical reactions happen inside a plant cell is the …

• nucleus

• mitochondrion

• cytoplasm

• cell sap

Which part of the cell controls all its activities?

• nucleus

• chloroplast

• cell wall

• cell membrane

The large fluid-filled space containing a solution of sugars and other substances is called the …

• chloroplast

• sap vacuole

• mitochondrion

• gas vacuole

Which organelle contains chlorophyll and makes food during photosynthesis?

• mitochondrion

• sap vacuole

• chloroplast

• nucleus

The green pigment that gives chloroplasts their colour is …

• haemoglobin

• keratin

• chlorophyll

• melanin