Unit 5 Cells

Descripción

8th grade Science Test sobre Unit 5 Cells, creado por Kimberly Mancuso el 07/12/2017.
Kimberly Mancuso
Test por Kimberly Mancuso, actualizado hace más de 1 año
Kimberly Mancuso
Creado por Kimberly Mancuso hace casi 7 años
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Resumen del Recurso

Pregunta 1

Pregunta
Plant and animal cells are similar, but have different distinct differences. The following images were seen under a microscope. Which of these images would best be identified as a plant cell?

Pregunta 2

Pregunta
The process used by plant cells to convert sunlight energy into glucose is called [blank_start]__________.[blank_end]
Respuesta
  • photosynthesis
  • cellular respiration
  • glucose
  • chloroplast

Pregunta 3

Pregunta
How do organisms get the energy they need?
Respuesta
  • Plants get energy from fertilizers Animals get energy by drinking water
  • Plants get energy from glucose produced in the soil Animals get energy directly from sunlight
  • Plants do not require energy because they do not move Animals get energy by performing exercises
  • Plants break down the glucose they produced in photosynthesis Animals get energy from eating other organisms

Pregunta 4

Pregunta
Organelles are structures within the cell that perform important functions. Which of the following correctly matches the organelle with its relationship to the whole cell?
Respuesta
  • nucleus - provides protection to the outside of the cell
  • mitochondria - provides the instructions for making proteins
  • chloroplasts - trap light energy and change it into food for the cell
  • cell membrane - changes the energy the cell gets from food into a form the cell can use

Pregunta 5

Pregunta
Green plants produce their own food during photosynthesis. Which of these statements about photosynthesis is true?
Respuesta
  • Water is one product of photosynthesis.
  • Oxygen is one product of photosynthesis.
  • Chlorophyll is one product of photosynthesis.

Pregunta 6

Pregunta
All cells are surrounded by a [blank_start]:[blank_end]
Respuesta
  • Cell Wall
  • Cell Membrane
  • Cytoplasm
  • Chloroplast

Pregunta 7

Pregunta
Mitochondria are important organelles within a cell. What would most likely happen if a cell's mitochondria were not functioning properly?
Respuesta
  • The cells would use lysosomes to release energy.
  • The cell's level of ATP would decrease.
  • The cell would create new mitochondria by cell division.
  • The cell's level of glucose would increase.

Pregunta 8

Pregunta
The food that plants produce during photosynthesis is called [blank_start]:[blank_end]
Respuesta
  • sucrose
  • glucose
  • atp
  • protein

Pregunta 9

Pregunta
What do animals do with the carbon dioxide produced in their cells during cellular respiration?
Respuesta
  • Store it for later use.
  • Reuse it during photosynthesis.
  • Exhale it in the breathing process.
  • Combine it with water to make sugar.

Pregunta 10

Pregunta
Plant cells use photosynthesis to make food. Plants cells also use cellular respiration to get energy from the food they make. How is cellular respiration di erent from photosynthesis?
Respuesta
  • Photosynthesis produces ATP, and cellular respiration produces sugars.
  • Photosynthesis requires oxygen, and cellular respiration requires carbon dioxide.
  • Photosynthesis produces oxygen, and cellular respiration produces carbon dioxide.
  • Photosynthesis requires energy from food, and cellular respiration requires energy from the sun.

Pregunta 11

Pregunta
Select the three parts of the cell theory.
Respuesta
  • All cells come from pre-existing cells.
  • Cell is the official name of the smallest unit of life.
  • All plants and animals are made of cells.
  • Cells are the basic unit of structure and function in organisms.

Pregunta 12

Pregunta
Photosynthesis takes place in the [blank_start]chloroplast[blank_end] Cellular Respiration takes place in the [blank_start]mitochondria[blank_end]
Respuesta
  • chloroplast
  • mitochondria
  • chlorophyll
  • nucleus
  • mitochondria
  • chloroplast
  • chlorophyll
  • nucleus

Pregunta 13

Pregunta
What is the difference between eukaryotic cells and prokaryotic cells?
Respuesta
  • Only prokaryotic cells have cytoplasm.
  • Only eukaryotic cells have cell membrane.
  • Only prokaryotic cells have genetic material.
  • Only eukaryotic cells have membrane-bound organelles.

Pregunta 14

Pregunta
During [blank_start]Photosynthesis[blank_end], glucose is broken down in the presence of oxygen to create energy, carbon dioxide, and water.
Respuesta
  • Photosynthesis
  • ATP
  • Cellular Respiration
  • Fermentation

Pregunta 15

Pregunta
Why is the sun necessary for plants to live on Earth?
Respuesta
  • Plants convert the sun's energy into water.
  • Plants convert the sun's energy into food.
  • Plants convert the sun's energy into carbon dioxide.

Pregunta 16

Pregunta
When examining cells with a microscope, you can see the outlines of plant cells easily, but the outlines of animal cells are hard to see. Why are animal cells harder to see than plant cells?
Respuesta
  • The cytoplasm of plant cells is green, but the cytoplasm of animal cells is colorless.
  • Plant cells have cell walls, but animal cells do not.
  • Plant cells are larger than animal cells.
  • Plant cells contain organelles, but animal cells do not.

Pregunta 17

Pregunta
Which process is represented by the equation?
Respuesta
  • cell respiration
  • reproduction
  • photosynthesis
  • protein synthesis

Pregunta 18

Pregunta
What are the reactants and products in the following equation?
Respuesta
  • Reactants: Glucose, Oxygen Products: Water, Carbon Dioxide, Energy
  • Reactants: Water, Carbon Dioxide, Energy Products: Glucose, Oxygen
  • Reactants: Water, Carbon Dioxide Products: ATP
  • Reactants: Glucose, ATP Products: Water, Oxygen, Carbon Dioxide

Pregunta 19

Pregunta
What type of energy transformation occurs during photosynthesis?
Respuesta
  • light energy from the sun to food energy in glucose
  • light energy from the sun to chemical energy in ATP
  • mechanical energy of the chloroplast to electrical energy of the atoms
  • food energy of glucose to mechanical energy of ATP

Pregunta 20

Pregunta
Which of these would be the best method of measuring the rate of photosynthesis in a plant?
Respuesta
  • oxygen production
  • water production
  • carbon dioxide production
  • glucose production

Pregunta 21

Pregunta
On a laboratory exam, a student is asked to determine if the cells under a microscope are plant cells or animal cells. What might the student look for?
Respuesta
  • Chloroplast & Cell Wall
  • Ribosomes & Vacuoles
  • Nucleus & Ribosomes
  • Cell Membrane & Mitochondria

Pregunta 22

Pregunta
In the past, scientists classified all organisms as either plants or animals, but never both. This classification proved wrong when unicellular organisms were observed switching back and forth between the two categories. Then a new classification system was invented. What can be concluded from this?
Respuesta
  • Theories are more important than observations.
  • Scientists must always be prepared to re-evaluate theories with new data.
  • Observations that do not agree with current theories are wrong.
  • If recorded data does not support the current theory, the theory must be wrong.

Pregunta 23

Pregunta
The ow chart below represents the process of photosynthesis. One step in the process is labeled X. Which activity occurs at X?
Respuesta
  • Plants are eaten by animals for food
  • Carbon dioxide and water are used to make sugar
  • Plants release water into the soil
  • Animals breathe out carbon dioxide

Pregunta 24

Pregunta
Which of these is the correct formula for Cellular Respiration?
Respuesta
  • Oxygen + Carbon → Energy + Glucose
  • Glucose + Carbon Dioxide → Water + Oxygen
  • Glucose + Oxygen → Carbon Dioxide + Water + Energy
  • Carbon Dioxide + Water + Energy → Glucose + Oxygen

Pregunta 25

Pregunta
Students are studying the rate of photosynthesis in bean plants. Which of the following environmental condition changes would MOST directly a ect the photosynthetic activity of the plant cells?
Respuesta
  • oxygen concentration in the air
  • sugar concentration in the water
  • carbon dioxide concentration in the air
  • water concentration in the air

Pregunta 26

Pregunta
The following table compares human population and carbon dioxide (CO2) levels in the atmosphere over time. How have the size of the human population and the amount of carbon dioxide in the atmosphere changed from 1960 to 1990?
Respuesta
  • the human population has increased while the amount of CO2 has decreased
  • the human population has decreased while the amount of CO2 has increased
  • both the human population and the amount of CO2 have increased
  • both the human population and the amount of CO2 have decreased

Pregunta 27

Pregunta
The following table compares human population and carbon dioxide (CO2) levels in the atmosphere over time. Which human activity might explain the change in CO2 levels shown in the graph?
Respuesta
  • storing nuclear waste
  • collecting solar energy
  • using wind energy
  • burning fossil fuels

Pregunta 28

Pregunta
The diagram shows a life process taking place within a cell. Which life process is shown?
Respuesta
  • reproduction
  • respiration
  • photosynthesis
  • locomotion

Pregunta 29

Pregunta
The diagram below shows a plant that carries out photosynthesis. Sunlight is absorbed by the leaves. What two substances are also taken in by the plant in order for photosynthesis to occur?
Respuesta
  • glucose & atp
  • water & carbon dioxide
  • oxygen & atp
  • carbon dioxide & oxygen

Pregunta 30

Pregunta
Which of the following correctly describes how a diagram of cellular respiration would differ from a diagram of photosynthesis?
Respuesta
  • the cellular respiration diagram would show the electron transport chain as the final step
  • the cellular respiration diagram would show glucose as the main source of energy
  • the cellular respiration diagram would show energy stored in large protein molecules called pyruvate
  • the cellular respiration diagram would show water as the main source of chemical energy

Pregunta 31

Pregunta
Which statement describes why respiration is necessary for the survival of organisms?
Respuesta
  • respiration is necessary for organisms because it removes carbon dioxide from the atmosphere
  • respiration is necessary for organisms because it removes oxygen from the atmosphere
  • respiration is necessary for organisms because it converts food energy into a form usable by cells
  • respiration is necessary for organisms because it converts light energy into a form usable by cells

Pregunta 32

Pregunta
The diagram below shows some relationships within a natural community. Which processes best explains the relationship shown?
Respuesta
  • photosynthesis & cellular respiration
  • glycolysis & the krebs cycle
  • photosynthesis & glycolysis
  • cellular respiration & glycolysis

Pregunta 33

Pregunta
Which of these would happen to the cell if cellular respiration stopped?
Respuesta
  • it would have to access backup energy trapped in the chemical bonds of food
  • it would no longer be able to passively transport materials across its cell membrane
  • it would not have access to the energy it needs to perform its functions
  • it would grow larger because it would not be able to dispose of waste

Pregunta 34

Pregunta
Plants use energy from sunlight, water, and carbon dioxide to produce sugar. Which structure is found only in plant cells and helps capture energy from sunlight?
Respuesta
  • vacuole
  • mitochondria
  • chromosomes
  • chloroplast

Pregunta 35

Pregunta
The diagram below gives information about carbon dioxide and oxygen in the atmosphere. What is the name of the process represented in this diagram that produces oxygen?
Respuesta
  • photosynthesis
  • cellular respiration
  • fermentation
  • glycolysis

Pregunta 36

Pregunta
Sadie was looking at an image in her textbook. It is shown below. The diagram shows a cell with some basic cell structures labeled. The textbook identifies this as a plant cell. What two structures, other than the large vacuole, indicate this cell is in fact, a plant cell?
Respuesta
  • Cell Wall & Nucleus
  • Cytoplasm & Cell Membrane
  • Chloroplast & Cell Wall
  • Vacuole & Cell Wall

Pregunta 37

Pregunta
The diagram below shows a microscope view of a unicellular organism. Four cell structures are labeled. Which statement about the labeled structures is correct?
Respuesta
  • They normally can be seen without magnification
  • They can survive outside the cell
  • They help carry on life activities within the cell
  • They cause disease within the cell

Pregunta 38

Pregunta
The diagram below shows a green plant carrying out photosynthesis. Identify two things shown in the diagram that the plant needs for photosynthesis to occur.
Respuesta
  • water from the ground food to the roots
  • carbon dioxide exhaled by mouse oxygen released by the plant
  • sunlight energy water vapor released by the plant
  • sunlight energy carbon dioxide exhaled by the mouse

Pregunta 39

Pregunta
The diagram below shows a green plant carrying out photosynthesis. Identify the three reactants shown in the diagram that the plant needs for photosynthesis to occur.
Respuesta
  • water from the ground
  • food to the roots
  • carbon dioxide exhaled by the mouse
  • oxygen released by the plant
  • sunlight energy
  • water vapor released by the plant

Pregunta 40

Pregunta
The diagram below shows cells from two different organisms. Several major cell structures are labeled. What are two reasons why Cell B would be classified as a plant cell?
Respuesta
  • it has a vacuole
  • it has a cell wall
  • it has a chloroplast
  • it has a cell membrane

Pregunta 41

Pregunta
Many cells have a nucleus that contains chromosomes. These chromosomes carry genes that are composed of [blank_start]chloroplast[blank_end]
Respuesta
  • chloroplast
  • water
  • DNA
  • cytoplasm

Pregunta 42

Pregunta
Which of the tissues cover the surface of the human body?

Pregunta 43

Pregunta
Which of the following tissues makes movement possible?

Pregunta 44

Pregunta
Which of the following is NOT a type of muscle tissue?
Respuesta
  • cardiac
  • skeletal
  • smooth
  • bone

Pregunta 45

Pregunta
What makes muscle tissue unique?
Respuesta
  • It is the only type of tissue that can not regrow itself once damaged.
  • It is the only type of tissue in our bodies with mitochondria.
  • It is the only type of tissue that is all over our bodies.
  • It is the only type of tissue that is voluntary & involuntary to make movement possible.

Pregunta 46

Pregunta
The diagram shows a longitudinal section of part of a plant root tip. Which of the following statements best describes a trend that can be observed in this root tip?
Respuesta
  • The cells are generally longer at the top than at the bottom.
  • The number of nuclei per cell increases toward the bottom of the root.
  • The cells are shorter the closer they are to the outer surface of the root.
  • The number of cells per area of the root is generally constant.

Pregunta 47

Pregunta
The diagram above represents a reflex arc in a human. This pathway responds when someone touches something that causes pain, such as a hot stove. ​Which of the following shows the correct order of the body systems involved in this response?
Respuesta
  • Integumentary, respiratory, digestive
  • Circulatory, respiratory, nervous
  • Integumentary, nervous, muscular
  • Circulatory, digestive, nervous

Pregunta 48

Pregunta
The diagram shows one of the processes that occurs in vertebrates. According to this information, which two body systems work together during this process?
Respuesta
  • Skeletal and respiratory systems
  • Circulatory and excretory systems
  • Respiratory and circulatory systems
  • Skeletal and excretory systems

Pregunta 49

Pregunta
The diagram below shows parts of a cell. ​Which organelle stores the information that determines an individual’s blood type?
Respuesta
  • 1
  • 2
  • 3
  • 4
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