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Biology Semester 1 (A) - Final Exam

Last updated 4 months ago

44 questions

Required

1

HS.L2U1.21

Required

1

HS.L2U1.21

Required

1

HS.L1U1.20

Required

1

HS+B.L2U1.8

Required

1

HS+B.L2U1.8

Required

1

HS.L2U1.21

Required

1

HS+B.L2U1.8

Required

2

HS+B.L1U1.5

Required

1

HS+B.L2U1.8

Required

1

HS.L2U1.21

Required

2

HS.L2U1.21

Required

1

HS.L2U1.21

Required

1

HS+B.L1U1.9

Required

2

Essential HS.L1U1.22

HS+B.L1U1.9

Required

3

Essential HS.L1U1.22

HS+B.L1U1.9

Required

3

Essential HS.L1U1.22

HS.L1U1.22

Plus HS+B.L1U1.9

Required

1

Essential HS.L1U1.22

HS+B.L1U1.9

Required

1

Essential HS.L1U1.22

HS.L1U1.22

Required

1

HS.L1U3.23

Required

1

Essential HS.L1U1.22

HS.L1U3.23

Required

5

Essential HS.L1U1.22

HS.L1U1.22

1

Essential HS.L1U1.22

HS.L1U1.22

Required

1

Essential HS.L1U1.22

HS.L1U1.22

Required

3

HS+B.L1U1.5

Required

1

HS+B.L1U1.6

Required

1

HS+B.L1U1.6

Required

1

HS+B.L1U1.5

Required

3

HS+B.L1U1.6

Required

2

HS+B.L1U1.6

Required

1

HS.L1U1.20

Required

1

HS.L1U1.20

Required

1

HS.L1U1.20

Required

1

HS.L1U1.20

Required

1

HS.L1U1.20

Required

1

HS.L1U1.20

Required

1

HS.L1U1.20

Required

1

HS.L1U1.20

Required

3

HS+B.L1U1.7

Required

1

HS+B.L1U1.7

Required

3

HS+B.L1U1.4

Required

4

HS+B.L1U1.7

Question 1

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Question 2

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Question 3

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Question 4

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Question 5

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Question 14

14.

The scientist studies two cells from a multicellular organism. One cell is from the stomach of the organism, while the other cell is from the skin. Choose the best response for each blank to correctly complete the paragraph.

The cells’ nuclei would contain __________ genetic information (DNA). The cells would express (turn on) __________ genes. The cells would most likely have different structures and functions. The process by which the cells would divide would be same.

Question 15

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Question 16

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Question 17

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Question 18

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Question 19

19.

Required

1

HS.L1U1.22

Required

1

HS.L1U1.22

Plus HS+B.L1U1.9

Question 22

22.

Required

1

Essential HS.L1U1.22

HS.L1U1.22

Question 24

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Question 25

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Question 26

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Question 27

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Draggable item		Corresponding Item

Question 28

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Question 43

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Question 44

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Draggable item		Corresponding Item

As part of her studies, a scientist is researching the ways that cellular respiration and photosynthesis provide the energy for an ecosystem. The diagram illustrates how matter and energy move through an aquatic ecosystem.
Which of the following statements are true in regards to the above pyramid?

10% of energy is "lost" from one trophic level to the next

90% of energy is "lost" from one trophic level to the next

Tertiary consumers are at the top of the pyramid because the are the largest animals

Alicia is developing a model of photosynthesis and respiration. Part of her model includes the inputs and outputs of each process. Which of these describes inputs and outputs of Alicia’s model?

Oxygen is an output for both respiration and for photosynthesis.

Water is an input for both respiration and for photosynthesis.

Carbon dioxide is an input for photosynthesis and an output for cellular respiration

Brenda ran a 5 km race. During the race, she began to breathe heavily, and some of her muscles began to burn. Which of these explains why Brenda felt a burning in her muscles during the race?

The cells had too much carbon dioxide, so they used aerobic respiration as a source of energy.

The cells did not have enough oxygen, so they used anaerobic cellular respiration producing lactic acid.

The cells had too much glucose, so they used aerobic respiration as a source of energy.

What role does sunlight play in photosynthesis?

It replenishes the oxygen

It provides the energy

It breaks down the glucose formed

What is the equation for photosynthesis?

C6H12O6 + 6O2 --> 6CO2 + 6H2O + light energy

6H2O + C6H12O6 --> 6CO2 + 6O2 + light energy

6CO2 + 6H2O + light energy --> C6H12O6 + 6O2

Which of the following statements is true about the relationship between cellular respiration and photosynthesis?

Photosynthesis occurs only in animals, while cellular respiration occurs only in plants

Photosynthesis produces glucose and oxygen, which are used in cellular respiration 

Cellular respiration releases sunlight energy for photosynthesis 

Which of the following statements is true about the relationship between light intensity and photosynthesis?

Light intensity and photosynthesis have no relationship

As light intensity increases rate of photosynthesis increases initially and then levels out 

As light intensity increases rate of photosynthesis increases initially and then decreases

Match the component of the cell membrane with its function.

Protein

Form the basic structure of the membrane

Phospholipids

Assists in transport and intercellular communication

Why do plants perform photosynthesis?

to make Water and Carbon Dioxide

to make Glucose (food) and release Oxygen

to make Glucose (food) and release Carbon Dioxide

What is the equation for cellular respiration?

6CO2 + 6H2O + light energy --> C6H12O6 + 6O2

6CO2 + 6O2 + light energy --> C6H12O6 + 6H2O

C6H12O6 + 6O2 --> 6CO2 + 6H2O + ATP

Lake Erie is a freshwater lake located in the Great Lakes region that borders Michigan, Ohio, Pennsylvania, and New York. The food chain shows an example of some of the relationships within this ecosystem.

Describe how carbon enters and exits this specific food chain. (Choose TWO)

Carbon enters the food chain as the nymph, a primary consumer, performs photosynthesis

Carbon enters the food chain as the algae, a primary producer, performs photosynthesis

Carbon exits the food chain in the form of carbon dioxide as the consumers perform cellular respiration

Carbon exits the food chain in the form of carbon dioxide as the consumers perform photosynthesis

Which organism depicted in the food web would you expect to have the fewest number of organisms in their population and why – coyote, deer, mouse or plant?

Plant - because it is a producer, more energy is available at higher trophic levels

Coyote - because it is a top level consumer, more energy is available at higher trophic levels

Coyote - because it is a top level consumer, less energy is available at higher trophic levels

Plant - because it is a producer, more energy is available at lower trophic levels

The model shows what happens to chromosomes during a certain part of the 
cell cycle.


Which of these is a reason that the chromosomes in the cell have two chromatids?

Each chromatid contains unique genetic information.

It allows the cell to divide into genetically identical daughter cells.

A student created the following models to show the chromosomes during the phases of mitosis. Drag the pictures next to the correct description.

   

Chromatids separate

Chromosomes begin to uncoil

Spindle fibers attach to centromeres

What are the THREE parts of the cell theory?

All cells come from other cells.

Cells are the basic units of life.

All cells contain genetic material.

All living things are made of cells.

The number of cells in an organism remains constant.

The model shows a cellular process.
What will be the end result of the process shown in the model?

Chromosomes will align in the middle of the cell.

One much larger cell will be produced through nuclear fusion.

Two identical daughter cells will be produced.

After fertilization, a single cell divides successfully to form a multicellular structure. What happens next in order for this structure to develop tissues and organs to meet the needs of the organism?

The cells undergo differentiation into particular body parts.

Viruses contained within the cells alter the DNA to form the required body parts.

More cells from other fertilized embryos are added to make the new body parts.

What do cancer cells do differently than normal cells in the cell cycle?

They skip G1 phase

They have fewer chromosomes

They divide uncontrollably

Question 20

20.

Question 21

21.

Problems can take place at any point in the cell cycle.  The longer a cell spends in a given phase, the higher the chance something can go wrong.  Given this, which phase is most likely to have the most problems?

Anaphase

Metaphase

Interphase

Question 23

23.

Match the phases with their characteristics-

Chromosomes align themselves in the middle 

Sister chromatids move apart

DNA condenses and forms chromosomes

Two nuclei are formed and both of them have same number of chromosomes as parent cell.

Prophase

Metaphase

Anaphase

Telophase

Which statement best explains why a group of cells functions better than one large cell?

The cells will become healthier if they are more in number.

The cells are able to have more genetic information in multiple cells.

The DNA of larger cells can't keep up with the cells demands

Which hypothesis about cells was later found to be wrong by scientists?

The cell is the most basic unit of life.

All organisms are made of cells and cell products.

Cells are formed spontaneously by free-cell formation.

Match the following biomolecules to their primary functions.

Proteins

Long-term Energy Storage

Lipids

Provide Quick Energy

Carbohydrates

Enzymes and transport

What is the main difference between diffusion and facilitated diffusion?

Facilitated diffusion happens without a concentration gradient

Diffusion involves living cells only

Facilitated diffusion requires help from transport proteins

In which process do molecules move from an area of high concentration to an area of low concentration?

Both diffusion and facilitated diffusion

Neither of them

Only in diffusion

Why are carrier/channel proteins used during facilitated diffusion?

To transport substances that can't pass through the cell membrane

To use ATP

To stop diffusion from happening

Determine if each of the following solutions is hypertonic, hypotonic or isotonic:

Hypertonic

Hypotonic

Isotonic

What is the key difference between active and passive transport?

Active requires energy, passive doesn't

Passive requires ATP

Active occurs without any energy input

What can be moved across a cell membrane via osmosis?

All liquids

Proteins

Water

How does sweating help maintain homeostasis during exercise?

By cooling the body down

By heating the body up

By maintaining blood pressure

Which of the following characteristics of life explains why birds fly south for the winter?

Living things are based on a universal genetic code

Living things respond to their environment

Living things are made up of cells

Which situation best exemplifies homeostasis in action?

Running when scared

Squinting eyes in bright light

Growing taller during puberty

What is the primary purpose of homeostasis in a biological system?

To boost energy production in response to the stimulus

To regulate external environment in response to the stimulus

To maintain internal stability in response to the stimulus

What does a positive feedback loop do in a biological system?

It reduces changes

It amplifies/increases changes

It stops the feedback mechanism

What are the two types of feedback loops in biological systems?

Positive and negative feedback loops

Large and small feedback loops

Inward and outward feedback loops

What characterizes a negative feedback loop in a living system?

Maintains constant feedback

Halts system's response

It counteracts changes

Put in order from largest to smallest (Largest on top, smallest on bottom)

organ systems

organism

cells

tissues

organs

What is the basic structural and functional unit of living organisms?

Organ

Body System

Cell

Match the cell structure with its primary function.

Nucleus

Energy production (ATP synthesis)

Ribosomes

Control center of cell and genetics

Mitochondria

Protein synthesis

Associate these organelles with their respective cells.

Lysosomes

Plant cells

Chloroplasts

Plant cells

Nucleus

Animal cells

Cell wall

Both plant and animal cells

Name the stage shown in the image alongside-

Prophase

Anaphase

Metaphase

What made you choose your answer in the previous question?

The chromosomes are being pulled toward opposite sides of the cell.

The cell membrane remains intact.

The chromosomes are attaching to the spindle fibers and lining up in the  middle of the cell.

Identify the stage of mitosis shown in the image alongside

Anaphase

Metaphase

Prophase