Cell Structure & Function

The diagram below represents levels of organization

in living things.

Which term would best represent X?

• human

• tissue

• stomach

• organelle

Tags

NGSS.MS-LS1-1

Living things contain cells that arise from preexisting

cells. This statement is part of the

• cell theory

• lock-and-key model of enzyme activity

• concept of natural selection

• heterotroph hypothesis

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NGSS.MS-LS1-1

Viruses are considered an exception to the cell theory

because they normally reproduce

• by binary fission

• only in a host cell

• sexually by forming seeds

• asexually by forming spores

Most of the reactions by which energy from

carbohydrates is released for use by the cell take place

within the

• mitochondria

• nuclei

• ribosomes

• vacuoles

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NGSS.HS-LS1-7

An ameba is a single-celled organism. It uses its cell

membrane to obtain food from its environment,

digests the food with the help of organelles called

lysosomes, and uses other organelles to process the

digested food. From this, we can best infer that

• all single-celled organisms have lysosomes to

  digest food

• amebas are capable of digesting any type of food

  molecule

• single-celled organisms are as complex as

  multicellular organisms

• structures in amebas have functions similar to

  organs in multicellular organisms

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NGSS.MS-LS1-2

NGSS.MS-LS1-1

NGSS.MS-LS1-7

The diagram below represents a cell in the human body. Which statement concerning the structures within this cell is accurate?

• Structure 1 is a chloroplast that carries out photosynthesis

• Structure 2 is a vacuole that contains DNA.

• Structure 3 is a mitochondrion, where respiration takes place

• Structure 4 is the cell membrane, which provides rigid support for the cell.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

Mitochondria provide ribosomes with

• ATP for protein synthesis

• amino acids for protein synthesis

• oxygen for respiration

• carbon dioxide for the production of sugars

The nucleus contains molecules of A, which

• recycle waste products

• remove water from the cell

• store hereditary information

• regulate the pH of cytoplasm

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NGSS.MS-LS3-1

Which cell structure is represented by B?

• vacuole

• ribosome

• cytoplasm

• chloroplast

Tags

NGSS.MS-LS1-2

Base your answer to the following question on the information and diagram below and on your

knowledge of biology. The diagram represents a cell.

Which structure is responsible for the passage of materials into and out of the cell?

• A

• B

• C

• D

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NGSS.MS-LS1-2