Cell Structures

Microscopic examination of a plant cell reveals the presence of a chloroplast. Which structure(s) would NOT be present within this cell? 

• Large central vacuole 

• Mitochondria 

• Centrioles 

• Cell wall 

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NGSS.MS-LS1-2

Many different microscopic organisms can be found in pond ecosystems, including the three organisms shown in the diagrams below. The primary cellular structures in each of these single-celled organisms are labeled in the diagrams. Some of the structures are common to all three organisms and other structures are not.  

Based on the cellular structure of organism 3, which of the following is a characteristic of the organism? 

• It can conduct photosynthesis. 

• It can move around in its environment. 

• It can produce male and female gametes. 

• It can survive for long periods by storing food. 

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NGSS.MS-LS1-1

NGSS.MS-LS1-2

Many different microscopic organisms can be found in pond ecosystems, including the three organisms shown in the diagrams below. The primary cellular structures in each of these single-celled organisms are labeled in the diagrams. Some of the structures are common to all three organisms and other structures are not.  

Which of the following is a function of the nucleus in organism 2? 

• absorbing sunlight 

• releasing usable energy 

• storing genetic material 

• producing food molecules 

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NGSS.MS-LS1-1

NGSS.MS-LS1-2

Several parts of an animal cell are involved in the processes of protein synthesis, packaging, and export. Which of the following correctly places the cell parts in the order in which they are involved? 

• nucleus → vacuole →  cell membrane 

• mitochondria → vacuole →  cell membrane 

•  ribosome → endoplasmic reticulum → Golgi apparatus → cell membrane 

•  lysosome → endoplasmic reticulum → Golgi apparatus → cell membrane 

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NGSS.MS-LS1-2

 

The following cell structures are located within cells that make proteins.  

Which description  best  explains the relationship among these cell structures in making a protein?  

nucleus  

ribosome  

endoplasmic reticulum (ER)  

• nucleus makes protein → protein winds through the ER → protein folds into its active shape  

• nucleus directs ER to assemble the protein → ribosomes surround protein → protein folds into its active shape  

• ER creates protein → DNA in the nucleus codes for ribosomes to surround protein → protein folds into its active shape  

• DNA in nucleus codes for protein → protein assembled in ribosomes and moves to ER → protein folds into its active shape  

Tags

NGSS.MS-LS1-2

Many organelles in a cell are bound by membranes. Which organelles consist of 

membranous tubes and sacs and serve as part of the cell’s packaging and transport 

system? 

• mitochondria and lysosomes 

• mitochondria and chloroplasts 

• ribosomes and endoplasmic reticulum 

• Golgi apparatus and endoplasmic reticulum 

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NGSS.MS-LS1-2

In the mid-nineteenth century, the discoveries of many scientists were combined to develop the modern cell theory. Which of the following statements is NOT part of the cell theory?

• All living things are made of one or many cells.

• Cells are produced from existing cells.

• All cells have the same internal structure

• Cells are the basic units of structure in living things.

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SC.912.L.14.1

Scientists have developed numerous theories and laws over time. One example is the cell theory. Why is the cell theory considered a theory rather than a law?

• It is an explanation rather than a description.

• It is well supported by many types of observations.

• It has not existed long enough to be considered a law.

• It developed through the work of more than one scientist.

Tags

SC.912.L.14.1

A student observed different types of cells under a microscope. Four of the cells he

observed are shown below.

Which of these structures in Cell 3 releases energy for use in cell processes?

• nucleus

• cell wall

• chloroplast

• mitochondrion

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SC.912.L.14.3

A student observed different types of cells under a microscope. Four of the cells he

observed are shown below.

Cell 4 has many hair-like structures that it uses for movement. What are these structures

called?

• cilia

• flagella

• vacuoles

• pseudopodia

Tags

SC.912.L.14.3