Question

cells review worksheet
name paola pd 7

1. name the three parts of the cell theory.
2. what invention had to be created before cell theory?
3. who came up with the word cell?
4. which scientists helped end spontaneous generation?

for the descriptions below of prokaryote and eukaryote, highlight the things they have in common in yellow, and the differences in red.
a prokaryotic cell is a simple, usually unicellular organism. inside, it has dna located in a region called the nucleoid, ribosomes to make proteins, and a cell membrane that controls what enters and exits the cell. some prokaryotes also have a cell wall for protection and structures like flagella or pili for movement and attachment. prokaryotic cells do not have a nucleus or any membrane - bound organelles such as mitochondria, chloroplasts, endoplasmic reticulum, or golgi apparatus.
a eukaryotic cell is more complex and can be unicellular or multicellular. inside, it has a true nucleus where the dna is stored, ribosomes for protein synthesis, and various membrane - bound organelles including mitochondria, endoplasmic reticulum, golgi apparatus, and lysosomes. plant eukaryotic cells also have chloroplasts for photosynthesis. eukaryotic cells do not have a nucleoid region, and they lack non - membrane - bound organelles; all major structures inside are enclosed by membranes.
instructions: read each clue carefully. each clue describes a missing function in a cell. write the name of the organelle in the box that, if missing, would cause the problem.

1. without me, proteins and lipids couldn’t be packaged or shipped to the right place in the cell. answer:
2. without me, the cell couldn’t make energy from food. atp production would stop. answer:
3. without me, the cell couldn’t store dna or control cell activities. i am the “control center” of the cell. answer:
4. without me, the cell couldn’t organize microtubules for cell division. spindle fibers wouldn’t form. answer:

Explanation:

1. The Golgi apparatus packages and ships proteins and lipids.
2. Mitochondria produce ATP from food.
3. The nucleus stores DNA and controls cell activities.
4. Centrioles organize microtubules for cell division and spindle fiber formation.

Answer:

1. Golgi apparatus
2. Mitochondria
3. Nucleus
4. Centrioles