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Endosymbiotic Theory Overview

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Questions and Answers

Which organelle is responsible for synthesizing and secreting proteins in the liver and hormones in the glands?

Golgi apparatus

Rough endoplasmic reticulum (correct)

Lysosome

Mitochondria

What is the main function associated with smooth endoplasmic reticulum?

ATP synthesis

Carbohydrate digestion

Phospholipid production (correct)

Protein synthesis

Which type of endoplasmic reticulum has ribosomes on its surface?

Lysosomal endoplasmic reticulum

Golgi endoplasmic reticulum

Smooth endoplasmic reticulum

Rough endoplasmic reticulum (correct)

What is the shape of the smooth endoplasmic reticulum?

Tubular form Signup and view all the answers

Aside from protein synthesis, what is another important function of the rough endoplasmic reticulum?

Protein folding Signup and view all the answers

Which organelle is responsible for transporting the products of rough endoplasmic reticulum to other cellular organelles like Golgi apparatus?

Smooth endoplasmic reticulum Signup and view all the answers

What is the primary function of the smooth endoplasmic reticulum?

Synthesizing essential lipids and steroid hormones Signup and view all the answers

How do prokaryotic cells differ from eukaryotic cells in terms of DNA organization?

Prokaryotes have DNA enclosed in a nucleus, while eukaryotes have DNA in a central region called nucleoid Signup and view all the answers

Which statement accurately describes prokaryotic cells?

They lack a true nucleus and membrane-bound organelles Signup and view all the answers

What do mitochondria and chloroplasts have in common based on the endosymbiont theory?

They were once free-living cells Signup and view all the answers

Which organelle was NOT mentioned as an example of an endosymbiont in the text?

Nucleus Signup and view all the answers

Why are smooth endoplasmic reticulum (SER) and rough endoplasmic reticulum (RER) important for cell function?

SER synthesizes lipids, while RER synthesizes proteins Signup and view all the answers

What is the main idea behind the Endosymbiotic Theory?

Mitochondria and chloroplasts were once aerobic bacteria ingested by a prokaryotic cell. Signup and view all the answers

What is the role of organelles in cells?

To carry out life functions within the cell. Signup and view all the answers

How do cells become specialized for specific roles?

Through a process called specialization. Signup and view all the answers

Which of the following is NOT one of the main types of tissues found in the human body?

Skeletal tissue Signup and view all the answers

What defines a group of tissues working together in the body?

An organ Signup and view all the answers

From which prokaryotic organisms did mitochondria and chloroplasts in eukaryotic cells evolve?

Aerobic bacteria Signup and view all the answers