Cell Theory

Question 1

Which cell structures are seen in all cell types? Check all that apply.

Revolt · Accepted Answer

DNA; cytoplasm; ribosomes; cell membrane

Question 2

Use the drop-down menus to complete each sentence. are organisms that contain more than one cell with membrane-bound organelles and a nucleus.

Revolt · Accepted Answer

Eukaryotes

Question 3

Organisms that contain only one cell and do not contain a nucleus or membrane-bound organelles are known as .

Revolt · Accepted Answer

prokaryotes

Question 4

Which descriptions apply to prokaryotic cells? Check all that apply.

Revolt · Accepted Answer

are usually single-celled; do not contain membrane-bound organelles; have DNA located in cytoplasm

Question 5

Which descriptions apply to eukaryotic cells? Check all that apply.

Revolt · Accepted Answer

are usually multicellular; contain a true nucleus; contain membrane-bound organelles

Question 6

An interaction between two organisms in which one usually benefits is known as .

Revolt · Accepted Answer

symbiosis

Question 7

Complete the statement below using the drop-down menus.It is believed mitochondria evolved from ,while chloroplasts evolved from .

Revolt · Accepted Answer

cyanobacteria; aerobic bacteria

Question 8

Is it possible today for a plant leaf cell to live without mitochondria and chloroplasts? Choose the best answer below.

Revolt · Accepted Answer

No, cells cannot live without mitochondria and chloroplasts; they provide the energy cells need to survive.

Question 9

Which term describes the relationship in which one organism lives inside the other one. Check the correct answer.

Revolt · Accepted Answer

endosymbiosis

Question 10

How is mitochondrial DNA used in science? Choose the correct answer.

Revolt · Accepted Answer

mtDNA is used to connect DNA samples to the mother in missing-person cases.

Cell Theory Answers