HOGRACER
Scientific Method
Macromolecules
Body Systems
Feedback Loops
100
The thick fur and skin of a polar bear allows it to survive in the tundra. This is an example of which characteristic of life?
A. Adaptation
B. Organization
C. Reproduction
D. Requires energy
Adaptation
100
Identify the independent variable and the dependent variable in the experimental design below:
A 5th grade class wants to see if different types of bubble gum will blow bigger bubbles. They break into 5 groups and each one chews a different brand of bubble gum. They then blow bubbles and measure the diameters to compare.
A. IV- different brands of bubblegum DV- diameter size of the bubble
B. IV- the 5th grade class DV- size of the bubble
C. IV- different brands of bubblegum student's favorite flavor
D. IV- the size of the bubbles DV- brands of bubblegum
IV- different brands of bubblegum DV- diameter size of the bubble
100
The diagram below shows a monomer of a macromolecule. Which type of molecule contains these monomers?
a. carbohydrates
b. proteins
c. nucleic acid
d. lipid
proteins
100
Which two from the following list describes how the skeletal system and muscular system interact?
A baby’s ability to lift his/her head.
Movement of the legs during a jump shot
Delivery of oxygen to muscles from the lungs.
A baby’s ability to recognize their mother’s face.
Movement of the legs during a jump shot
100
During strenuous exercise, body temperature increases. The body responds to the increase in temperature by sweating, which helps to reduce the body temperature. Which best describes this situation?
Interactions between a person and its ecosystem
Metabolism of fatty foods
A feedback mechanism that maintains homeostasis
Synthesis of new nutrients
A feedback mechanism that maintains homeostasis
200
- Sally thinks the hierarchical organization of living things is:
Cells → Organs → Tissues → Organ Systems.
Which option below correctly revises her statement?
A. Sally should switch Cells & Organs
B. Sally should switch Organs & Tissues
C. Sally should switch Tissues & Organ Systems
D. Sally should switch Cells & Tissues
Sally should switch Organs & Tissues
200
you placed Group A in a tray with a depth of 5 mL of water, Group B in a tray with a depth of 15 mL of water, and Group C in a tray with a depth of 10 mL of water (the average rainfall amount in Missouri). They wanted to know whether changing the water levels would affect the length of the root systems of the soybean plants, so they designed an experiment to find out.
What is the control group?
A. Group A
B. Group B
C. Group C
Group C
200
What is the function of the macromolecule this nucleotide makes up?
a. energy
b. catalyst
c. stores genetic information
d. composes the majority of the cell membrane
stores genetic information
200
This body system controls growth and homeostasis by secreting hormones from glands.
Skeletal system
Endocrine system
Nervous system
Respiratory system
Endocrine system
200
Most bacteria that cause sickness in humans grow best at 98.6F. Sometimes a fever is the body’s response to the bacteria. What is the reason for developing a fever?
To lower the temperature of the body to kill the bacteria
To allow the bacteria to take over
To increase the temperature of the body to kill the bacteria
To make you feel miserable
To increase the temperature of the body to kill the bacteria
300
When a plant needs water, they open their stomata to allow water into their cells. This helps keep the internal environment of the cells as consistent as possible. Predict what the plant would do to maintain homeostasis if it were placed in a very dry environment.
A. Open their stomata to allow water out
B. Open their stomata to keep water in
C. Close their stomata to keep water in
D. Close their stomata to allow water out
Close their stomata to keep water in
300
Which is true for having controls/constants in an experiment?
A. They are the variable we change in order to test our hypotheses
B. They are what is being measured/observed for data collection and analysis
C. They are what we keep the same every single time to ensure accurate results
D. They are the the supplies list necessary to write the procedural steps of an experiment
They are what we keep the same every single time to ensure accurate results
300
Like complex carbohydrates, proteins are macromolecules that serve many functions and can be chemically broken down and restructured. Both proteins and complex carbohydrates are which of the following?
polymers of smaller subunits
sequence of sugars
lipids of large molecules
nucleotides of DNA
polymers of smaller subunits
300
Hermione drinks a very sugary potion. Which of these describes the correct pathway the sugar will take in her body to provide her cells with energy.
Digestive to Nervous
Nervous to Excretory
Digestive to Circulatory
Muscular to Skeletal
Digestive to Circulatory
300
Type 1 diabetes is a condition where the pancreas does not produce insulin and blood glucose levels are not regulated appropriately. Blood glucose levels can be monitored by taking a small sample of the patient’s blood and performing a blood glucose test. Normal blood glucose levels tend to be between 70 mg/dL and 120 mg/dL.
Your patient suspects he may have diabetes. He consumed a large candy bar and you tested his blood glucose one hour later.
What would you predict your data to be in a person who does not produce insulin?
The blood glucose level is 50 mg/dL
The blood glucose level is 80 mg/dL
The blood glucose level is 110 mg/dL
The blood glucose level is 140 mg/dL
The blood glucose level is 140 mg/dL
400
During a baseball game, the first baseman sees the batter hit a line drive directly at him. In a matter of seconds, his eyes, brain, nerves and muscles all worked together allowing him to catch the ball before being hit. Explain this phenomenon in terms of the characteristics of living things.
A. His cells reproduced quickly enough to allow the reaction to occur.
B. His body maintained homeostasis, keeping him safe.
C. His body systems worked together to respond to the stimuli in his environment.
D. His body took in more nutrients to allow him to catch the ball.
His body systems worked together to respond to the stimuli in his environment.
400
When writing the hypothesis, what format should be used?
A. "If CV, then IV because..."
B. "If DV, then IV because..."
C. "If IV, then DV because..."
D. "If IV, then CV because..."
If IV, then DV because...
400
Ovalbumin is a protein found in eggs. Which of the following best describes the molecular structure of ovalbumin?
a group of six carbon atoms joined in a ring.
a chain of amino acids folded and twisted into a molecule
a set of three fatty acids attached to a molecule of glycerol
a sequence of nitrogenous bases attached to a sugar phosphate backbone
a chain of amino acids folded and twisted into a molecule
400
Low blood pressure can be life-threatening. To help maintain a stable blood pressure, receptors in the heart detect changes in blood pressure. Information about blood pressure changes is then sent to the brain. If blood pressure is too low, the brain sends a message to the heart to beat faster.
Based on this information, which of the following systems are directly involved in keeping blood pressure stable?
a. circulatory, muscular, nervous
b. circulatory, immune, skeletal
c. excretory, immune, muscular
d. excretory, nervous, skeletal
circulatory, muscular, nervous
400
The diagram below shows the positive feedback loop that occurs when a woman goes into labor. Use this diagram to answer the following questions.
What organ systems work together to allow the baby to be delivered?
Nervous, Endocrine, Circulatory, Muscular
Digestive, Muscular, Skeletal, Nervous
Integumentary, Respiratory, Skeletal, Nervous
Endocrine, Digestive, Nervous, Skeletal
Nervous, endocrine, circulatory, muscular
500
The picture below shows how the Arctic Fox’s coat color changes throughout the changing seasons. Make observations to identify the stimulus the fox is exposed to and the response it has.
A. Stimulus – Fur Color Response – Temperature
B. Stimulus – Rain Response – Happiness
C. Stimulus – Temperature Response – Fur Color
D. Stimulus – Fur Color Response – Camouflage
Stimulus - Temperature Response - Fur Color
500
What THREE things must you include when writing a conclusion for your experiment?
A. Support/disprove hypothesis, evidence, and data
B. IV, DV, CV
C. Procedure, Variables, and Data
Support/disprove hypothesis, evidence, and data
500
Two of the four principal classes of organic compounds are proteins and nucleic acids. What is the relationship between proteins and nucleic acids?
Nucleic acids use proteins for energy
Nucleic acids are a subset of proteins
Proteins are long polymers of nucleic acids
Nucleic acids contain the information to make proteins
Nucleic acids contain the information to make proteins
500
Predict what would happen if the digestive systems were no longer able to interact with the circulatory system.
Signals would not be transmitted to allow digestion
Blood flow would not reach the muscles
Nutrients from the digested food would not be transported around the body
Undigested food would not be able to be removed from the body
Nutrients from the digested food would not be transported around the body
500
Predict how the childbirth feedback loop would be affected if the mother’s body did not produce oxytocin.
The pituitary gland would be stimulated
The uterus would not contract and would not push the baby toward the cervix.
The uterus would contract and would push the baby toward the cervix.
The pituitary gland would receive a nerve impulse from the brain.
The uterus would not contract and would not push the baby toward the cervix.