Question

practice 1
study figures 2 - 1 and 2 - 3. in the chart below, choose the correct column to best identify the following characteristics as being prokaryotic, eukaryotic, or both.

	prokaryotic cells only	eukaryotic cells only	both prokaryotic and eukaryotic cells
2. contain mitochondria	a	b	c
3. have a cell membrane	a	b	c
4. have ribosomes within the cytoplasm	a	b	c
5. are more complex	a	b	c
6. have a nucleus	a	b	c
7. contain dna in a nucleus	a	b	c
8. best represents a bacterium	a	b	c

practice 2
answer the following questions about prokaryotic and eukaryotic cells. darken the circle or circles that correspond to your answer choice(s).

1. which of following best describes a difference between prokaryotic and eukaryotic dna?

a prokaryotic dna is double stranded; eukaryotic dna is single stranded.
b eukaryotic dna is found in the mitochondria; prokaryotic dna is found in golgi bodies.
c prokaryotic dna is found in the nucleoid region; eukaryotic dna is in the nucleus.
d eukaryotic dna is found in the nucleoid region; prokaryotic dna is in the nucleus.

1. which two of the following structures are found in both prokaryotic and eukaryotic cells?

a ribosomes
c vacuole
e cell membrane
b golgi bodies
d nucleus
f endoplasmic reticulum

1. which of the following best represents the average size of a prokaryotic cell?

a 1 - 10 μm
b 10 - 50 μm
c 50 - 100 μm
d 10 - 100 μm

1. while conducting a laboratory experiment comparing prokaryotic and eukaryotic cells, a student completed the following data table for cell #1. √ = yes, × = no.

characteristics of cell #1
√	√	√	√	√	×	√

based on the student’s analysis, cell #1 is most likely which kind of cell?
a animal
b fungal
c plant
d bacterium

Explanation:

1. Prokaryotic and eukaryotic cells both contain DNA. Prokaryotic DNA is in the nucleoid region and eukaryotic DNA is in the nucleus.
2. Ribosomes and cell - membranes are found in both prokaryotic and eukaryotic cells. Golgi bodies, vacuoles, and endoplasmic reticulum are only in eukaryotes, and nucleus is only in eukaryotes.
3. The average size of a prokaryotic cell is 1 - 10 μm.
4. Cell #1 has a cell wall, cell membrane, cytoplasm, DNA, flagella and ribosomes but no nucleus, which is characteristic of a bacterial (prokaryotic) cell.

Answer:

Practice 1:

1. C
2. B
3. C
4. C
5. B
6. B
7. B
8. A

Practice 2:

1. C
2. A, E
3. A
4. D