AnswersCMS 2026-2027 Biology CREDIT RECOVERYCellular Structure and Function

Cellular Structure and Function — Test Answers

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Which organelles are labeled G?

A
mitochondria
B
ribosomes
C
lysosomes
D
centrioles
3

Which is a function of the structure that is represented in the image?

A
controls the movement of substances into and out of cells
B
helps in determining plant cell shape
C
builds proteins from amino acids
D
provides support and protection
7

Which best describes the cell theory?

A
As technological advancements are made, the cell theory may change.
B
A theory, once formulated, cannot be changed.
C
The development of a synthetic cell has caused the cell theory to change.
D
Scientists know all there is to know about cells, so the cell theory will not change.
8

Which organelle breaks down sugar molecules that supply energy to the cell?

A
Golgi apparatus
B
mitochondrion
C
nucleus
D
endoplasmic reticulum
9

How is mitochondrial DNA (mtDNA) typing used in forensic science?

A
A suspect’s nuclear DNA sample is matched to an unknown sample of mtDNA that was found at a crime scene.
B
A suspect’s mtDNA sample is matched to an unknown sample of mtDNA that was found at a crime scene.
C
A suspect’s nuclear DNA sample is matched to an unknown sample of nuclear DNA that was found at a crime scene.
D
A suspect’s mtDNA sample is matched to an unknown sample of nuclear DNA that was found at a crime scene.
10

A magnifying glass is an example of which type of microscope?

A
simple microscope
B
scanning microscope
C
compound light microscope
D
electron microscope
12

Who first recognized the cell as the universal unit of life?

A
Virchow
B
Hooke
C
Schleiden and Schwann
D
van Leeuwenhoek
13

A scientist discovers a cell that has chloroplasts, cytoplasm, DNA, and a cell membrane. Which statement best describes how the cell could be classified?

A
The cell is prokaryotic because it has cytoplasm.
B
The cell is prokaryotic because it has DNA.
C
The cell is eukaryotic because it has chloroplasts.
D
The cell is eukaryotic because it has a cell membrane.
14

The role of the cell membrane is most like the job of which person?

A
a firefighter who evacuates people from a burning building
B
a police officer who allows select people to enter and leave a crime scene
C
a teacher who keeps students in the classroom during an exam
D
a bus driver who drives the express route from the suburb to downtown
17

Which statement is one component of the cell theory?

A
Cells and living organisms are spontaneously created.
B
All living and nonliving things consist of one or more cells.
C
A cell is the basic unit of structure and function of all organisms.
D
Cells are the most complex unit of structure and function in living things.
18

The endosymbiotic theory provides an explanation for the origin of chloroplasts. Which trait of chloroplasts supports this explanation?

A
Chloroplasts have their own DNA.
B
Chloroplasts do not reproduce.
C
Chloroplasts rely on proteins that are made by the cell.
D
Chloroplasts are larger than prokaryotic cells.

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