Endosymbiotic Theory Review Lesson 4a Unit 3b

Virtual Day Lesson

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DE Biology

Endosymbiotic Theory

Multiple Choice

What type of transport was shown in the animation of the blob cell taking in the photosynthetic bacterial cell?

• diffusion

• osmosis

• phagocytosis

• pinocytosis

Match

Match up the scientific terms in ENDOSYMBIOTIC with their meanings.

• endo

• sym

• bio

• (t)ic

inside

with / together

life

turns noun into adjective

• inside

• with / together

• life

• turns noun into adjective

Multiple Choice

What does the endosymbiotic theory say that the "cells living inside other cells" became?

• organs

• organelles

• DNA

• cell membranes

Multiple Select

What modern-day observations support the endosymbiotic theory?

• mitochondria have two membranes

• chloroplasts have their own circular chromosomes

• mitochondria have their own ribosomes

• chloroplasts have flagella

Open Ended

The endosymbiotic theory has supporters and critics. After watching this video, which one are you? Why?

Multiple Choice

The endosymbiotic theory states that a prokaryotic cell was consumed/engulfed by a larger cell

• True

• False

Multiple Choice

The theory of Endosymbiosis explains

• The origin of eukaryotes

• How bacteria live

• How species develop

• Why cells rely on one another

Multiple Choice

____________ & _________________ are organelles that definitely arose from endosymbiosis.

• Nucleus and cell membrane

• Chloroplast and mitochondria

• Mitochondria and nucleus

• Cell wall and chloroplast

Multiple Choice

Which of the following is evidence to support the endosymbiotic theory?

• Mitochondria and chloroplasts have their own DNA, which is similar to prokaryotic DNA.

• Fossil evidence shows that the first forms of life were prokaryotic cells.

• All eukaryotic cells have a double-layered membrane composed of phosplipids and proteins.

• Prokaryotes have the same number and types of enzymes as eukaryotes.