Scientific Inquiry — Unit test Answers

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A scientist is using a microscope to observe a type of bacteria.Which two structures would the scientist most likely see?

A
nucleus and DNA
B
DNA and cell wall
C
cell wall and nucleus
D
nucleus and chloroplast
2
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Which structures do plant cells have for making food that animal cells do not?

A
mitochondria
B
ribosomes
C
cytoplasm
D
chloroplasts
3

A scientist is observing a eukaryotic cell and a prokaryotic cell. Which structure could she only observe in the eukaryotic cell?

A
cytoplasm
B
DNA
C
ribosomes
D
a nucleus
4

Which order shows the levels of organization from largest to smallest?

A
organism, organ system, cell, organ, tissue
B
organism, tissue, organ system, organ, cell
C
organism, organ, organ system, cell, tissue
D
organism, organ system, organ, tissue, cell
5

Which of these structures are found in both plant and animal cells?

A
cell wall, mitochondria, ribosomes
B
mitochondria, ribosomes, nucleus
C
ribosomes, chloroplasts, cytoplasm
D
cytoplasm, cell wall, mitochondria
6

Which are characteristics of a prokaryotic cell? Select three options.contains DNAlacks DNAcontains ribosomeslacks ribosomescontains a nucleuslacks a nucleus

A
contains DNA
B
lacks DNA
C
contains ribosomes
D
lacks ribosomes
E
contains a nucleus
F
lacks a nucleus
7

TissuesOrgansOrgan systemsOrganisms

A
Tissues
B
Organs
C
Organ systems
D
Organisms
8

Alyssa is observing two cells, X and Y. Each cell is from either a plant or an animal. She records some of her observations in a chart.Cell ObservationsCell XCell Yhas a cell wallround shapeshaped like a rectanglehas a large nucleushas several organelleshas ribosomes

A
Cell X has a cell membrane, and Cell Y does not.
B
Cell Y has a cell membrane, and Cell X does not.
C
Cell Y has chloroplasts, and Cell X does not.
D
Cell X has chloroplasts, and Cell Y does not.
9

Which three structures are found in both prokaryotic and eukaryotic cells?

A
cytoplasm, DNA, mitochondrion
B
ribosomes, DNA, cytoplasm
C
nucleus, cell wall, cell membrane
D
cell membrane, chloroplast, ribosomes
10

What makes up muscle tissue?

A
organisms
B
organ systems
C
organs
D
cells
11

Chad drew a diagram to compare animal cells and bacterial cells.

Question illustration
A
nucleus
B
DNA
C
cell wall
D
ribosomes
12

The diagram shows a certain kind of cell with all its major parts labeled.

Question illustration
A
The cell must be eukaryotic because it has a cell membrane and a cell wall.
B
The cell must be prokaryotic because it has a cell membrane and a cell wall.
C
The cell is eukaryotic because it does not have any membrane-bound organelles.
D
The cell is prokaryotic because it does not have any membrane-bound organelles.
13

The diagram shows structures that represent different levels of organization in a human.

Question illustration
A
W
B
X
C
Y
D
Z
14

Which are characteristics of eukaryotic organisms? Select three options.may be single-celled or multi-celledhave cells that contain DNA within a nucleushave cells that contain DNA in the cytoplasmare always single-celledinclude plants and bacteriainclude animals and plants

A
may be single-celled or multi-celled
B
have cells that contain DNA within a nucleus
C
have cells that contain DNA in the cytoplasm
D
are always single-celled
E
include plants and bacteria
F
include animals and plants
15

What word is used to refer to a group of organ systems working together?

A
organism
B
cell
C
tissue
D
organ
16

a cellan organ systeman organtissue

A
a cell
B
an organ system
C
an organ
D
tissue
17

Which best compares plant and animal cells?

A
Animal cells have a nucleus while plant cells have DNA.
B
Animal cells have an irregular shape while plant cells have a rectangular shape.
C
Plant cells have proteins while animal cells have sugars.
D
Plant cells have a cell membrane while animal cells have a cell wall.
18

Lucia drew a diagram to compare animal cells and plant cells.

Question illustration
A
nucleus
B
cell wall
C
chloroplasts
D
rigid shape
19

A scientist is observing onion cells and human cheek cells under a microscope.Which observation does she most likely make?

A
The onion cells have ribosomes, and the cheek cells do not.
B
The cheek cells have mitochondria, and the onion cells do not.
C
The cheek cells have a nucleus, and the onion cells do not.
D
The onion cells have a cell wall, and the cheek cells do not.
20

Ling made a study chart for science class.Plant and Animal CellsOrganelleType of Cellcell membraneplant and animal cellmitochondrionplant and animal cell?plant cell only

A
ribosome
B
cytoplasm
C
chloroplast
D
nucleus

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