Biology Unit 1: Review

​Part 1: Abiotic, Biotic and Characterstics of Life

Multiple Select

Scenario 1:

Scientists in the Arizona desert are studying the pH of the soil and how it effects the growth of the cacti and mesquite trees in the area. The soil is sandy and dry due to the intense sunshine and low rainfall in the summer.

Question 1: In this scenario what abiotic factors are mentioned?

• Cacti

• Mesquite Trees

• Sun

• Soil

• Rain

Multiple Select

Scenario 1:

Scientists in the Arizona desert are studying the pH of the soil and how it effects the growth of the cacti and mesquite trees in the area. The soil is sandy and dry due to the intense sunshine and low rainfall in the summer.

Question 2: In this scenario what biotic factors are mentioned?

• Cacti

• Mesquite Trees

• Sun

• Soil

• Rain

Multiple Choice

Scenario 2:

A scientist studying bacteria in a lab notices that the bacteria are dividing rapidly on the petri dish. He also notices that the bacteria are only growing on the side of the dish that is under a light. When the dish is turned the bacteria move back to the side in the light over time.

Question 1: The bacteria moving onto the lit side of dish is an example of which characteristic of life?

• Responding to stimuli

• Reproduction

• Metabolism (Use of energy)

• Homeostasis

Multiple Choice

Scenario 2:

A scientist studying bacteria in a lab notices that the bacteria are dividing rapidly on the petri dish. He also notices that the bacteria are only growing on the side of the dish that is under a light. When the dish is turned the bacteria move back to the side in the light over time.

Question 2: Which of the following options is not a characteristic of life

• Responding to stimuli

• Ability to move

• Metabolism (Use of energy)

• Change over time (Evolution)

Multiple Choice

Scenario 2:

A scientist studying bacteria in a lab notices that the bacteria are dividing rapidly on the petri dish. He also notices that the bacteria are only growing on the side of the dish that is under a light. When the dish is turned the bacteria move back to the side in the light over time.

Question 3: The bacteria dividing rapidly is an example of what characteristic of life?

• Responding to stimuli

• Reproduction

• Metabolism (Use of energy)

• Homeostasis

Multiple Select

Scenario 3:

In the ocean tiny microscopic organisms known as Plankton use the sun to create sugars that are later broken down to provide energy. These plankton serve as the base of most ocean food chains. Without sun light they would not be able to produce the sugars they need to survive.

Question 4: This scenario is describing which characteristics of life for the plankton?

• Metabolism (Use of energy)

• Homeostasis (maintaining a stable internal environment)

• Growth and Development

• Respond to stimuli

part 2: Levels of organization

Multiple Choice

Scenario 1:

An anatomy class is studying how our circulatory system (heart, blood, veins and arteries) sends oxygen and nutrients throughout the body. They observe the muscle tissue our heart is made of contains muscle cells that help the heart expand and contract as well as pacemaker cells that send an electrical signal that regulates our heart beat.

Question 1: In this scenario our heart is considered a(n)...

• Organ

• Organ system

• Tissue

• Cell

Multiple Choice

Scenario 1:

An anatomy class is studying how our circulatory system (heart, blood, veins and arteries) sends oxygen and nutrients throughout the body. They observe the muscle tissue our heart is made of contains muscle cells that help the heart expand and contract as well as pacemaker cells that send an electrical signal that regulates our heart beat.

Question 2: According to the information above which option best describes a Tissue

• Groups of different cells working together to perform a specific function

• A group of organs designed to perform a specific function

• A group of organelles that work together to perform a specific function

• A group of molecules that come together to help a cell function

Multiple Choice

Scenario 1:

An anatomy class is studying how our circulatory system (heart, blood, veins and arteries) sends oxygen and nutrients throughout the body. They observe the muscle tissue our heart is made of contains muscle cells that help the heart expand and contract as well as pacemaker cells that send an electrical signal that regulates our heart beat.

Question 3: According to the information above which option best describes the circulatory system (an organ system)

• Groups of different cells working together to perform a specific function

• A group of organs designed to perform a specific functions

• A group of organelles that work together to perform a specific function

• A group of molecules that come together to help a cell function

Multiple Choice

Scenario 1:

An anatomy class is studying how our circulatory system (heart, blood, veins and arteries) sends oxygen and nutrients throughout the body. They observe the muscle tissue our heart is made of contains muscle cells that help the heart expand and contract as well as pacemaker cells that send an electrical signal that regulates our heart beat.

Question 4: Based on the scenario above's description of the muscle tissue of the heart, which statement below is true

• Tissues make up organs

• Tissues are only made of 1 type of cell

• Organ systems make up tissues

• Tissues are living organisms all on their own

Multiple Choice

Scenario 1:

An anatomy class is studying how our circulatory system (heart, blood, veins and arteries) sends oxygen and nutrients throughout the body. They observe the muscle tissue our heart is made of contains muscle cells that help the heart expand and contract as well as pacemaker cells that send an electrical signal that regulates our heart beat.

Question 4: Select the correct order of the levels of organization below from smallest to largest

• Cell --> Tissue --> Organ --> Organ System

• Organ System --> Organ --> Tissue

  --> Cell

• Organelle --> Tissue --> Cell --> Organ --> Organ System

• Tissue --> Cell --> Organ --> Organelle

Multiple Choice

Scenario 1:

An anatomy class is studying how our circulatory system (heart, blood, veins and arteries) sends oxygen and nutrients throughout the body. They observe the muscle tissue our heart is made of contains muscle cells that help the heart expand and contract as well as pacemaker cells that send an electrical signal that regulates our heart beat.

Question #5: Which level of organization is the smallest that is considered living?

• Cell

• Organelle

• Tissue

• Molecule

Part 3: Cell Structure and Function

Multiple Choice

Scenario 1:

The human body has over 200 different types of cells. White blood cells have lots of lysosomes that are used to break down any bacteria or viruses that get deep inside our body. Muscle and Nerve cells have lots of mitochondria. Cells in our pancreas have many Endoplasmic Reticulum (ER) and Golgi to create insulin. Cells in our blood vessel walls have special amounts of vesicles that store proteins that help our blood clot if the vessel is damaged.

Question 1: Which statement below is true based on the reading

• The structure found in a cell can vary based on their function

• All cells in our body are the same despite having different functions

• These cells only help when our bodies are not in homeostasis

• Multicellular organisms are made of only 1 type of cell

Multiple Choice

Scenario 1:

The human body has over 200 different types of cells. White blood cells have lots of lysosomes that are used to break down any bacteria or viruses that get deep inside our body. Muscle and Nerve cells have lots of mitochondria. Cells in our pancreas have many Endoplasmic Reticulum (ER) and Golgi to create insulin. Cells in our blood vessel walls have special amounts of vesicles that store proteins that help our blood clot if the vessel is damaged.

Question 2: Why would it be important for muscle cells to have lots of mitochondria?

• It takes a lot of energy to help our muscles expand and contract for movement

• Muscle cells actually do not need the extra mitochondria its a random mutation

• Muscles make lots of proteins for other body tissues

• Muscles are an important in reducing the carbon dioxide in our blood

Multiple Choice

Scenario 1:

The human body has over 200 different types of cells. White blood cells have lots of lysosomes that are used to break down any bacteria or viruses that get deep inside our body. Muscle and Nerve cells have lots of mitochondria. Cells in our pancreas have many Endoplasmic Reticulum (ER) and Golgi to create insulin. Cells in our blood vessel walls have special amounts of vesicles that store proteins that help our blood clot if the vessel is damaged.

Question 3: Which option below matches the organelle to its incorrect function

• Vacuole- stores water and nutrients

• Endoplasmic Reticulum- makes proteins and sends them to the Golgi

• Lysosomes- Contain enzymes that break down waste and nutrients

• Nucleus- Controls what enters and leaves a cell

Part 4: Homeostasis and Feedback Loops

Multiple Choice

Scenario 1:

To regulate our body temperature our bodies produce sweat when we overheat and shiver when our body temperature becomes to low. These responses are focused on helping us maintain and average body temperature of 98.6 degrees F.

Question 1: What type of feedback loop is described above

• Positive

• Negative

Multiple Choice

Scenario 1:

To regulate our body temperature our bodies produce sweat when we overheat and shiver when our body temperature becomes to low. These responses are focused on helping us maintain and average body temperature of 98.6 degrees F.

Question 2: How did you determine the answer for the previous question

• The body is trying to amplify or intensify a response

• The response is trying to return the body to homeostasis

Multiple Choice

Scenario 2:

When a cell is damaged (like from a cut or a scrape), it releases a chemical called histamine. Histamine signals immune cells and fluids to rush to the damaged site to clean up and repair the area. When those cells arrive they release more histamine which sends another wave of fluids and immune cells.

Question 3: What type of feedback loop is described above

• Positive

• Negative

Multiple Choice

Scenario 2:

When a cell is damaged, (like from a cut or a scrape), it releases a chemical called histamine. Histamine signals immune cells and fluids to rush to the damaged site to clean up and repair the area. When those cells arrive they release more histamine which sends another wave of fluids and immune cells.

Question 4: How did you determine the answer for the previous question

• The body is trying to amplify or intensify a response

• The response is trying to return the body to homeostasis

Part 5: Cell Transport

Multiple Choice

Scenario 1:

A group of biology students just completed a lab were they used gummy bears to simulate cells being put into different solutions. The gummy bears were placed into 3 solutions. Salt Water, Sugar Water and Tap Water. The results of this experiment can be seen in the picture above (Click on the image to make it larger)

Question 1: What process observed in the results?

• Diffusion

• Osmosis

• Endocytosis

• Exocytosis

Multiple Choice

Scenario 1:

A group of biology students just completed a lab were they used gummy bears to simulate cells being put into different solutions. The gummy bears were placed into 3 solutions. Salt Water, Sugar Water and Tap Water. The results of this experiment can be seen in the picture above (Click on the image to make it larger)

Question 2: Which solution represents an Isotonic environment for the gummy bear?

• Tap Water

• Syrup

• Salt Water

Multiple Choice

Scenario 1:

A group of biology students just completed a lab were they used gummy bears to simulate cells being put into different solutions. The gummy bears were placed into 3 solutions. Salt Water, Sugar Water and Tap Water. The results of this experiment can be seen in the picture above (Click on the image to make it larger)

Question 2: How did you determine the correct solution for the previous question?

• The gummy bear had equal amounts of particles on the inside and outside so water does not need to move anywhere

• The gummy bear has more particles on the inside then the outside causing water to flow into it (it swelled up)

• The gummy bear shrank because there was particles in the water then in the bear. This encouraged he water to leave the bear making it shrivel.

Multiple Choice

Scenario 1:

A group of biology students just completed a lab were they used gummy bears to simulate cells being put into different solutions. The gummy bears were placed into 3 solutions. Salt Water, Sugar Water and Tap Water. The results of this experiment can be seen in the picture above (Click on the image to make it larger)

Question 3: Which solution represents a hypotonic environment for the gummy bear?

• Tap Water

• Syrup

• Salt Water

Multiple Choice

Scenario 1:

A group of biology students just completed a lab were they used gummy bears to simulate cells being put into different solutions. The gummy bears were placed into 3 solutions. Salt Water, Sugar Water and Tap Water. The results of this experiment can be seen in the picture above (Click on the image to make it larger)

Question 4: How did you determine the correct solution for the previous question?

• The gummy bear had equal amounts of particles on the inside and outside so water does not need to move anywhere

• The gummy bear has more particles on the inside then the outside causing water to flow into it (it swelled up)

• The gummy bear shrank because there was more particles in the water then in the bear. This encouraged the water to leave the bear making it shrivel.

Multiple Choice

Scenario 1:

A group of biology students just completed a lab were they used gummy bears to simulate cells being put into different solutions. The gummy bears were placed into 3 solutions. Salt Water, Sugar Water and Tap Water. The results of this experiment can be seen in the picture above (Click on the image to make it larger)

Question 5: Which solution represents a hypertonic environment for the gummy bear?

• Tap Water

• Syrup

• Salt Water

Multiple Choice

Scenario 1:

A group of biology students just completed a lab were they used gummy bears to simulate cells being put into different solutions. The gummy bears were placed into 3 solutions. Salt Water, Sugar Water and Tap Water. The results of this experiment can be seen in the picture above (Click on the image to make it larger)

Question 6: How did you determine the correct solution for the previous question?

• The gummy bear had equal amounts of particles on the inside and outside so water does not need to move anywhere

• The gummy bear has more particles on the inside then the outside causing water to flow into it (it swelled up)

• The gummy bear shrank because there was more particles in the water then in the bear. This encouraged the water to leave the bear making it shrivel.