Middle School Life Science : Middle School Life Science

Study concepts, example questions & explanations for Middle School Life Science

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All Middle School Life Science Resources

55 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #11 : Distinguish Between Plant And Animal Cells

Elodea chloroplast

What type of cell is pictured in the image above?

Possible Answers:

none of these

an animal cell

a T-Cell

a plant cell

Correct answer:

a plant cell

Explanation:

The answer is "a plant cell." The image shows a microscope slide of a plant cell with distinct chloroplasts and rectangular cell walls. Another hint that it's a plant cell, is that the cells and chloroplasts are green! 

Example Question #12 : Distinguish Between Plant And Animal Cells

Products g animal cell

What kind of cell is represented in the image above?

Possible Answers:

an animal cell

a plant cell

a T-cell

an antibody

Correct answer:

an animal cell

Explanation:

The answer is "an animal cell." The cell has a membrane, rather than a rigid geometric shape meaning that it is not a plant cell. Additionally, you can clearly see the nucleus and mitochondria, but no chloroplasts.

Example Question #13 : Distinguish Between Plant And Animal Cells

Breonna and Taylor are lab partners. They are looking at cells through a microscope to determine whether the cells are plant cells or animal cells.

  • The cells are slightly rectangular and geometric
  • The cells have nuclei
  • The cells have mitochondria
  • The cells are right next to each other
  • The cells have chloroplasts

Breonna says they are plant cells because they have cell walls. Taylor agrees they are plant cells but she says it's because they have chloroplasts. Which of the following students has the correct explanation to write on their lab report?

 

Possible Answers:

Taylor has the correct explanation but the wrong identification

Neither have the correct identification or explanations

Breonna has the correct identification and explanation

They both have correct explanations

Taylor has the correct identification and explanation

Correct answer:

They both have correct explanations

Explanation:

The answer is "They both have correct explanations." The primary distinction between plant and animal cells is that plant cells have cell walls while animal cells have cell membranes. Plant cells have chloroplasts but animal cells do not. All cells have a nucleus so this is not relevant to the distinction.

Example Question #14 : Distinguish Between Plant And Animal Cells

Which of the following answer choices is a similarity between plant and animal cells?

Possible Answers:

none of these

both the cells contain golgi bodies

all of these

the gel-like material between organelles is called cytoplasm

the nucleus is present in both

Correct answer:

all of these

Explanation:

the answer is "all of these." Plant and animal cells have many similarities. The differences between plant and animal cells are that plant cells have chloroplasts and cell walls but animal cells don't have chloroplasts and have cell membranes.

Example Question #15 : Distinguish Between Plant And Animal Cells

Images

Does the image above represent a plant or animal cell? 

Possible Answers:

an animal cell

not enough information

neither of these

a plant cell

Correct answer:

an animal cell

Explanation:

The answer is an animal cell because the shape of the cell is irregular, and there are no chloroplasts visible. If the cell were more rectangular or had visible chloroplasts it would probably be a plant cell.

Example Question #11 : Middle School Life Science

Which of these is present in plant cells but not animal cells?

Possible Answers:

mitochondria

chloroplasts

cell membrane

vacuole

Correct answer:

chloroplasts

Explanation:

The answer is chloroplasts.

Cell membrane:in animal cells, this separates the interior of all cells from the outside environment (the extracellular space)

Cell wall: in plant cells, gives the cell a rigid rectangular shape, helps to keep the organelles inside the cell, and does not let the cell burst due to changes in pressure.

Chloroplast: in plant cells, allows for photosynthesis, traps energy from sunlight

Endoplasmic reticulum: translation and folding of new proteins

Flagellum: Helps a cell move (not all cells have these)

Golgi apparatus: sorting, packaging, processing and modification of proteins

Mitochondrion: Produces energy in the form of ATP

Nucleus: contains DNA, controls all activities of the cell, performs RNA transcription

Vacuole: stores nutrients, transportation, helps maintain homeostasis

Example Question #12 : Middle School Life Science

Which of the following is the function of a mitochondria?

Possible Answers:

to package and store protein

to perform RNA transcription

to produce energy in the form of ATP

allow for photosynthesis

Correct answer:

to produce energy in the form of ATP

Explanation:

The answer is "to produce energy in the form of ATP."

Cell membrane:in animal cells, this separates the interior of all cells from the outside environment (the extracellular space)

Cell wall: in plant cells, gives the cell a rigid rectangular shape, helps to keep the organelles inside the cell, and does not let the cell burst due to changes in pressure.

Chloroplast: in plant cells, allows for photosynthesis, traps energy from sunlight

Endoplasmic reticulum: translation and folding of new proteins

Flagellum: Helps a cell move (not all cells have these)

Golgi apparatus: sorting, packaging, processing and modification of proteins

Mitochondrion: Produces energy in the form of ATP

Nucleus: contains DNA, controls all activities of the cell, performs RNA transcription

Vacuole: stores nutrients, transportation, helps maintain homeostasis

Example Question #13 : Middle School Life Science

Screen shot 2020 06 03 at 1.47.49 pm
This image shows the components of which organelle?

Possible Answers:

vacuole

chloroplast

cell wall

mitochondria

Correct answer:

cell wall

Explanation:

The answer is "cell wall" because we see an image of a plant cell and the cell wall's infrastructure.

Cell membrane:in animal cells, this separates the interior of all cells from the outside environment (the extracellular space)

Cell wall: in plant cells, gives the cell a rigid rectangular shape, helps to keep the organelles inside the cell, and does not let the cell burst due to changes in pressure.

Chloroplast: in plant cells, allows for photosynthesis, traps energy from sunlight

Endoplasmic reticulum: translation and folding of new proteins

Flagellum: Helps a cell move (not all cells have these)

Golgi apparatus: sorting, packaging, processing and modification of proteins

Mitochondrion: Produces energy in the form of ATP

Nucleus: contains DNA, controls all activities of the cell, performs RNA transcription

Vacuole: stores nutrients, transportation, helps maintain homeostasis

Example Question #14 : Middle School Life Science

Screen shot 2020 06 03 at 2.04.33 pm

What is the function of the Endoplasmic reticulum?

Possible Answers:

producing energy in the form of ATP

allowing for photosynthesis

contain the DNA and control activities of the cell

translating and folding new proteins

Correct answer:

translating and folding new proteins

Explanation:

The answer is "translating and folding new proteins"

Cell membrane:in animal cells, this separates the interior of all cells from the outside environment (the extracellular space)

Cell wall: in plant cells, gives the cell a rigid rectangular shape, helps to keep the organelles inside the cell, and does not let the cell burst due to changes in pressure.

Chloroplast: in plant cells, allows for photosynthesis, traps energy from sunlight

Endoplasmic reticulum: translation and folding of new proteins

Flagellum: Helps a cell move (not all cells have these)

Golgi apparatus: sorting, packaging, processing and modification of proteins

Mitochondrion: Produces energy in the form of ATP

Nucleus: contains DNA, controls all activities of the cell, performs RNA transcription

Vacuole: stores nutrients, transportation, helps maintain homeostasis

Example Question #14 : Middle School Life Science

Which of these is responsible for sorting, packaging, processing, and modifying proteins in a cell?

Possible Answers:

Mitochondria

Vacuoles

The nucleus

Golgi bodies

Correct answer:

Golgi bodies

Explanation:

The answer is "Golgi bodies"

Cell membrane:in animal cells, this separates the interior of all cells from the outside environment (the extracellular space)

Cell wall: in plant cells, gives the cell a rigid rectangular shape, helps to keep the organelles inside the cell, and does not let the cell burst due to changes in pressure.

Chloroplast: in plant cells, allows for photosynthesis, traps energy from sunlight

Endoplasmic reticulum: translation and folding of new proteins

Flagellum: Helps a cell move (not all cells have these)

Golgi apparatus: sorting, packaging, processing and modification of proteins

Mitochondrion: Produces energy in the form of ATP

Nucleus: contains DNA, controls all activities of the cell, performs RNA transcription

Vacuole: stores nutrients, transportation, helps maintain homeostasis

All Middle School Life Science Resources

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