The diagram shows the typical structure of a plant cell. Which structure provides support and shape to the cell?

Structure A- Large central vacuole

What happens during osmosis?

Water molecules move from a higher to lower concentration through a selectively permeable membrane.

Water molecules move from lower to higher concentration through the cytoplasm.

Water molecules are engulfed and vesicles are formed.

Water molecules does not remain homeostasis.

A cell is placed in a salt solution that has the same concentration as the inside of the cell. What will happen to the cell?

The cell wall will remain the same size

How do materials pass into and out of the nucleus?

Through pores in the nuclear envelope

By flowing through the cytoplasm

Carlos was studying the cell membrane by using an egg as a model of the cell. He soaked the egg in vinegar for 2 days, then changed the liquid to salt water and soaked it for 2 more days. The egg's size increase then decrease. Which factor explains why the egg's size changed during the experiment?

The egg was selectively permeable, and liquids diffuse in and out of the egg.

The egg grew, causing it to increase, and then started to decay, causing it to shrivel.

The vinegar contaminated the egg, and the salt water reversed the effect.

Eggs need refrigeration and swell or shrink depending on the temperature of liquids.

The diagram illustrates a cell membrane regulating passage of essential nutrients. Which property of the cell membrane is most closely associated with its ability to promote this process?

The cell membrane is selectively permeable.

The cell membrane is able to obtain any substance.

The cell membrane is nonselectively permeable.

The cell membrane is selectively nonpermeable.

Examine the cell diagram. Which description is alinged with structure E?

It is the nucleus that contains genetic information for the cell.

It is the vacuole that stores water and other substances.

It is the mitochondrion that releases energy once food is broken down.

It is the cytoplasm that moves the organelles.

What is the function of the flagellum in bacterial cells?

It produces enzymes, which speed up chemical reactions in cells.

Helps get rid of hazardous wastes that could harm the bacterial cell.

It allows photosynthesis to happen.

The diagram shows a cell surrounded by nutrients. Which statement most accurately describes the movement of nutrients by diffusion?

The nutrients will move the cell membrane to the lower concentration.

The nutrients will dissolve and then regrow.

The nutrients will move through the cell membrane to the higher concentration.

The nutrients will remain in equilibrium.

A student examines a cell with organelles J, K, L, and M labeled. Correctly identify the organelles.

J: Nucelus, K: Mitochondria, L: Lysosome, M: Cell membrane

J: Nucleus, K: Centriole, L: Lysosome, M: Cell wall

J: Nucleus, K: Lysosome, L: Vacuole, M: Cell wall

J: Nucleus, K: Vacuole, L: Mitochondria, M: Cell membrane

What is the role of simple diffusion?

It helps the movement of particles maintain in balance

It controls the movement of particles

It allows the cell to expand or contract

What are proteins in cells?

Large organic molecules made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.

Helps speed up chemical reactions in cells and living things.

Energy-rich organic compounds made of carbon, hydrogen, and oxygen.

Cathy wrote the structures and functions of different cell organelles. Which structure is INCORRECTLY paired with its function.

Mitochondrion: provides support

Which statement correctly describes the differences between cell membranes and cell walls?

The cell membranes of plant and animal cells are flexible and do not have a definite shape, while the cell walls of plant cells are rigid which gives plant cells a definite shape.

Cell membranes are only found in animal cells, while cell walls are found in both plant and animal cells.

Cell membranes are the outermost covering in plant cells, while cell walls are in direct contact with the cytoplasm of animal cells.

The cell membranes of plant and animal cells are impermeable, which allows nothing to pass, while the cell walls of plant cells are permeable which allows small things to pass

Carlos was studying the cell membrane by using an egg as a model of the cell. He soaked an egg in vinegar for 2 days and measured the circumference. His results are shown in the diagram and table. Which statement best explains why the egg's size increased?

The surface of the egg is selectively permeable and allows liquids to diffuse into the egg.

The egg began to decompose, and bacteria caused the egg to swell.

A chemical reaction with the vinegar formed gases inside the egg.

The vinegar caused the surface of the egg to relax, resulting in expansion and swelling.

Introduction to Cell

Authored by Charles Martinez

Science

7th Grade

NGSS covered

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75 questions

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Who was the first scientist to observe cells?

Schleiden

Leeuwenhoek

Robert Hooke

Virchow

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the significance of mitochondria as shown?

Controls which substances go into and out of the cell.

Helps take in food and convert it to energy the cell can use.

Clear gel-like fluid that moves the organelles.

Directs the cell's activities.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-7

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What are two types of prokaryotes?

Eubacteria and archaebacteria.

Vaculoes and lysosomes.

Amoebas and flagellum.

Chloroplasts and proteins.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which cell structure is the arrow pointing to?

Mitochondria

Cell Membrane

Cell Wall

Endoplasmic Reticulum

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the function of the nucleolus inside a cell's nucleus?

It is a structure where ribosomes are made.

A network of membranes that produces many substances.

A clear, gel-like fluid that fills the nucleus.

A green pigment that makes plants green.

Tags

NGSS.MS-LS1-2

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which statement best classifies and describes the function of structure A?

It is a large central vacuole where it stores food, water, and wastes.

It is the nucleus where it contains the cell's DNA.

It is the ER where it produces many substances for the plant cell.

It is the golgi complex where it distributes materials to other organelles in the cell.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which of the following correctly defines what phospholipids are?

A web of proteins in the cytoplasm.

Lipids that contain phosphorus and are hydrophilic.

A membrane-bound organelle that contains the cell's DNA.

A lipid in which sugars are broken down to produce ATP.

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Introduction to Cell

Who was the first scientist to observe cells?

What is the significance of mitochondria as shown?

What are two types of prokaryotes?

Which cell structure is the arrow pointing to?

What is the function of the nucleolus inside a cell's nucleus?

Which statement best classifies and describes the function of structure A?

Which of the following correctly defines what phospholipids are?

The diagram shows the typical structure of a plant cell. Which structure provides support and shape to the cell?

The ability to distinguish details on an object is called

Thin strands of material that fills the nucleus and contains information for directing a cell's function is called

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