Can you name the different parts of this cell?
What task do the different parts perform? What kind of cell is it?
What differences can you name? Why is this cell different from the first one?
Complete the sentences with the correct preposition: by (x2) up out inside from (x2) in (x2) between • • • • • • • • •
Living things are organisms that have the ability to carry out ……. the 7 life processes up They are made ………… of cells. from pre-existing cells. All cells come ………… by Robert Hook in a thin slice In 1665 the cell was discovered ……….. of cork. in Some cells are enclosed ………….. a cell wall. between the cell and The cell membrane regulates interactions ……………. the environment. Cells are filled with a gelatinlike substance called cytoplasm that inside constantly flows ………………. the cell membrane. from The nucleus directs all cell activities and is separated ………….. by the cytoplasm ………………. a membrane. in In plant cells, food is made ……………. green organelles in the cytoplasm called chloroplasts.
Complete the sentences with the correct preposition: into (x2) down (x2) on around from out to •
Mitochondria (sing, mitochondrion) are organelles where energy is
down food ……… into carbon dioxide and water. released from breaking ………… •
on small structures called ribosomes. Cells make their own proteins ……..
•
from the nucleus ………. to the The endoplasmic reticulum extends …………. cell membrane. It is a series of folded membranes in which materials
around inside of the cell. can be processed and moved …………… •
The Golgi complex sorts proteins and other cellular substances and
into membrane-bound structures called vesicles. packages them …………. •
Organelles called lysosomes contain digestive chemicals that help break
down food molecules, cell wastes, and worn-……….. out cell parts. ……………
Classify these words from the sentences according to how –(e)s is pronounced. organisms processes sorts regulates flows interactions
substances
regulates chloroplast s sorts
chloroplasts
organisms interactio ns flows
packages
processes substance s packages
Classify these words from the sentences according to how –ed is pronounced. separated discovered folded filled processed moved released
processed released
discovered filled moved
separated folded