AnswersFirst Semester BiologyThe Process of Photosynthesis

The Process of Photosynthesis — Unit test Answers

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1
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Which organelles are not found in plant cells?

A
vacuoles
B
mitochondria
C
chloroplasts
D
centrioles
2
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Consider the plant cells in the image below.Which is a function of the cell structure that is labeled X?

Question illustration
A
It stores lipids.
B
It helps in cell metabolism.
C
It provides support.
D
It transports proteins.
3

Shannon is making a Venn diagram to organize the characteristics of cell walls and cell membranes. Which pair of characteristics both belong in the two areas of the Venn diagram that do not intersect?

A
helps with communication; contains mostly cellulose
B
contains mostly cellulose; forms the outer layer of animal cells
C
is found in plant cells; is found in animal cells
D
is semipermeable; found in animal cells
4

Which organelle can be compared to a security guard who decides whom may enter a building and whom may not?

A
cell membrane
B
cytoplasm
C
endoplasmic reticulum
D
mitochondrion
5

Which statement correctly explains whether more ATP is found in muscle cells or bone cells?

A
More ATP is found in muscle cells because they use energy less efficiently than bone cells.
B
More ATP is found in bone cells because they grow more and need energy from ATP.
C
More ATP is found in bone cells because they need large amounts of energy to produce marrow.
D
More ATP is found in muscle cells because they need large amounts of energy to power motion.
6

James wants to create a self-sustaining ecosystem, or vivarium. Which method would most likely result in an ecosystem that is viable for the longest amount of time with no additional care?

A
Put a few plants, water, sand, and a heat lamp inside a clear glass aquarium and seal the top. Place it in a sunny location.
B
Put water, fertilizer, soil, plants and insects in an open, clear glass aquarium. Place it in an area that has some sunlight and some shade.
C
Put rocks, water, and many plants in an open, dark-colored plastic tub. Place it in an area with direct sunlight.
D
Put soil, water, many plants, and a few insects in a sealed, clear plastic aquarium. Place it in an area with indirect sunlight.
7

Which of the following can combine in a cell to convert a lower-energy molecule into a higher-energy molecule?

A
ADP + P + energy
B
ATP + P + energy
C
ADP + P
D
ATP + P
8

What do all cellular activities in living organisms use as a source of energy?

A
ATP
B
lactic acid
C
pyruvic acid
D
carbon dioxide
9

An animal cell (left) and a plant cell (right) are shown.Which organelle, labeled X in the diagram, is found in both plant and animal cells?

Question illustration
A
the cell wall
B
the cell membrane
C
mitochondrion
D
ribosome
10

Two cells in the same organism differ only in the number of chloroplasts they contain. The first cell has multiple chloroplasts, and the second cell has very few. What would most likely characterize these cells?

A
There would be no difference between the functioning of the cells because the chloroplasts are not essential cell structures.
B
The second cell would become larger because it would have fewer chloroplasts regulating its size and shape.
C
The second cell would shrink because it would not be able to store water and maintain cell shape.
D
The second cell would not be able to produce as much food because it could not capture very much sunlight.
11

The table lists some organelles and functions. Only one pair is correctly matched.Functions of OrganellesOrganelleFunctionNucleusDirects cell activityEndoplasmic reticulumBreaks down sugar molecules to supply energyGolgi apparatusSupports and protects organelles in the cellLysosomeProduces proteins for the cellWhich organelle in the table is correctly matched with its function?

A
nucleus
B
endoplasmic reticulum
C
Golgi apparatus
D
lysosome
12

A lab experiment to determine the rate of ATP production and its use in plants is conducted. In the lab, twenty circles cut from plant leaves are placed in a container of water with a light source, which allows photosynthesis to occur. When the rate of ATP production exceeds the ATP use, oxygen is given off by the plant cells, causing the leaf circles to float. Using the graph of data from this experiment, at which point was the light source most likely removed?

Question illustration
A
A
B
B
C
C
D
D
13

Sheela wants to demonstrate the importance of photosynthesis to plants and the other living organisms that eat plants. She models the process of photosynthesis that is specifically involved in the production of sugars.Which process in the light-independent reactions of photosynthesis is she modeling?

A
the production of oxygen
B
the production of glucose
C
the production of carbon dioxide
D
the production of water
14

How does adenosine triphosphate (ATP) become adenosine diphosphate (ADP)?

A
ATP stores energy as a phosphate bond is formed.
B
ATP releases energy as a phosphate bond is formed.
C
ATP releases energy as a phosphate bond is broken.
D
ATP stores energy as a phosphate bond is broken.
15

The Venn diagram compares aerobic respiration and anaerobic respiration.Which statement could be categorized in the overlapping section of the Venn diagram?

Question illustration
A
uses pyruvic acid
B
has commercial uses
C
regenerates NADH
D
produces 36 ATP
16

How does ATP supply energy for cellular activities?

A
by breaking off a phosphate group from its structure
B
by releasing the sugar molecule from its structure
C
by adding a phosphate group to its structure
D
by attaching itself to a glucose molecule
17

Which is the final electron acceptor in the electron transport chain of cellular respiration?

A
NADH
B
FADH2
C
oxygen
D
carbon dioxide
18

Chloroplasts have a complex internal structure, as shown in the model below.In which location is glucose formed?

Question illustration
A
Location A
B
Location B
C
Location C
D
Location D
19

In algae and plants, photosynthesis happens in the

A
vacuoles.
B
mitochondria.
C
chloroplasts.
D
chromosomes.
20

The table lists some organelles and functions. Only one pair is correctly matched.Functions of OrganellesOrganelleFunctionLysosomeStores water and waste materialsVacuoleBreaks down sugarsMitochondrion Breaks down waste materials and debrisRibosomeProduces proteins for the cellWhich organelle in the table is correctly matched with its function?

A
lysosome
B
vacuole
C
mitochondrion
D
ribosome

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