Log in
Sign up for FREE
arrow_back
Library

End of year review: Unit 3

star
star
star
star
star
Last updated over 3 years ago
4 questions
Required
1
Question 1
1.
The smallest unit of an element is a(n) _______.
Required
1
Required
5
Required
3
Question 2
2.
A(n) _______ is a group of atoms joined by chemical bonds.
Question 3
3.

Match the organelle to the correct definition.

Draggable itemarrow_right_altCorresponding Item
chloroplasts
arrow_right_alt
rigid outer layer of a plant cell
nucleus
arrow_right_alt
arrow_right_alt
arrow_right_alt
arrow_right_alt
Question 4
4.

gel like fluid where organelles are found
cytoplasm
produces the energy a cell needs to carry out its functions, it is called the powerhouse
cell wall
contains the DNA of the cell
mitochondria
captures energy from sunlight and uses it to produce food in plant cells
Select the organs.
tissue
stomach
skin
cells
systems
heart