Important organelles

Question 1

Cell membrane

Answer 1

Surrounds the cell and acts as a barrier Regulates what comes in and out of the cell

Question 2

Mitochondria

Answer 2

Power house of the cell, provides energy for the cell. Takes glucose from food and converts it into a form of cellular energy called ATP

Question 3

Ribosomes

Answer 3

Received instructions from the nucleus to make proteins that will serve as the organism’s building blocks for making blood, muscle, and other tissues. Ribosomes can be found all throughout the cytoplasm

Question 4

Nucleus

Answer 4

Encloses DNA. The DNA contains the cell’s genetic information which then controls the cell’s activities

Question 5

What are the levels of organization?

Answer 5

Atom —> molecule —> cells —> tissue—> organ —> organ system —> organism

Question 6

What do both prokaryotic and eukaryotic cells have in common?

Answer 6

DNA, ribosomes, cell membrane, and a cytoplasm

Question 7

What are the differences between prokaryotic and eukaryotic cells?

Answer 7

1. Eukaryotic cells are more complex
2. Eukaryotic cells have a nucleus to hold DNA, while prokaryotic cells have “free floating” DNA, without a nucleus to hold it
3. Eukaryotic cells have membrane bound organelles, while prokaryotic cells do not