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Pennsylvania Keystone Exam Actual Verified Exam
Questions with Correct Answers and explanations
LATEST THIS YEAR -JUST RELEASED.pdf||NEWEST
EXAM!!!
Which characteristic do all prokaryotes and eukaryotes
have in common?
A) The ability to store genetic info in the chromosomes
B) The ability of organelles to regulate and control cell
processes such as diffusion, photosynthesis and protein
synthesis
C) The ability to undergo cellular respiration to releases
energy from nutrients
D) The ability to respond to stimuli by moving - Answer-a
A bacterial cell is an example of a prokaryote, while a
paramecium (protist) is an example of a eukaryote. Which
structure is present in both pro and eu?
A) A nucleus that regulates cellular processes
B) Mitochondria that separates the inner contents of the
cell from the outside environment
C) A cell membrane that separates the inner contents of
the cell from the outside environment
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D) A cell wall that maintains a rigid outer barrier for the cell
- Answer-c
Fish, Frogs, and Plankton are some organisms found in a
pond. Which characteristic of life do these pond organisms
have in common?
A) They only live in water
B) they are producers and are capable of making their
own food
C) They require energy to live
D) They acquire air through organs known as gills -
Answer-c
Studies of Adipose (fat) cells and Glandular cells show
that Adipose cells have fewer mitochondria than Glandular
cells. A biologist would likely infer that Adipose tissue...
A) Does not require any energy for cellular processes to
occur
B) Needs the same amount of energy as Glandular cells
C) Requires less energy than Glandular tissue
D) Requires more energy than Glandular tissue - Answer-c
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Large eukaryotic organisms such as animals contain
trillions of cells. Nervous system cells are essential to the
maintenance of homeostasis in animals because they
enable...
A) Communication among cells
B) Transportation of nutrients to muscle tissue
C) Regulation of reproductive processes within other
tissues
D) The exchange of gases within lung tissue - Answer-a
Which of the following best describes how the Golgi
Apparatus prepares proteins for use by an organisms?
A) The GA sorts proteins and sends them to their
appropriate destination in a cell
B) The GA translate the genetic code into the amino acids
that form the proteins
C) The GA builds RNA codons that instruct protein
formation
D) The GA folds, processes, assembles, and stores
proteins - Answer-d
Which statement best describes the cells of a dog?
Pennsylvania Keystone Exam Actual Verified Exam
Questions with Correct Answers and explanations
LATEST THIS YEAR -JUST RELEASED.pdf||NEWEST
EXAM!!!
Which characteristic do all prokaryotes and eukaryotes
have in common?
A) The ability to store genetic info in the chromosomes
B) The ability of organelles to regulate and control cell
processes such as diffusion, photosynthesis and protein
synthesis
C) The ability to undergo cellular respiration to releases
energy from nutrients
D) The ability to respond to stimuli by moving - Answer-a
A bacterial cell is an example of a prokaryote, while a
paramecium (protist) is an example of a eukaryote. Which
structure is present in both pro and eu?
A) A nucleus that regulates cellular processes
B) Mitochondria that separates the inner contents of the
cell from the outside environment
C) A cell membrane that separates the inner contents of
the cell from the outside environment
,2|Page
D) A cell wall that maintains a rigid outer barrier for the cell
- Answer-c
Fish, Frogs, and Plankton are some organisms found in a
pond. Which characteristic of life do these pond organisms
have in common?
A) They only live in water
B) they are producers and are capable of making their
own food
C) They require energy to live
D) They acquire air through organs known as gills -
Answer-c
Studies of Adipose (fat) cells and Glandular cells show
that Adipose cells have fewer mitochondria than Glandular
cells. A biologist would likely infer that Adipose tissue...
A) Does not require any energy for cellular processes to
occur
B) Needs the same amount of energy as Glandular cells
C) Requires less energy than Glandular tissue
D) Requires more energy than Glandular tissue - Answer-c
, 3|Page
Large eukaryotic organisms such as animals contain
trillions of cells. Nervous system cells are essential to the
maintenance of homeostasis in animals because they
enable...
A) Communication among cells
B) Transportation of nutrients to muscle tissue
C) Regulation of reproductive processes within other
tissues
D) The exchange of gases within lung tissue - Answer-a
Which of the following best describes how the Golgi
Apparatus prepares proteins for use by an organisms?
A) The GA sorts proteins and sends them to their
appropriate destination in a cell
B) The GA translate the genetic code into the amino acids
that form the proteins
C) The GA builds RNA codons that instruct protein
formation
D) The GA folds, processes, assembles, and stores
proteins - Answer-d
Which statement best describes the cells of a dog?
