Digestive System
Respiratory System
Nervous System
Biomolecules
All Things Biology
100
The process of digestion begins in the mouth, where BOTH of these types of digestion occur.
Mechanical and Chemical Digestion
100
These two gases are the primary molecules that are exchanged in the respiratory system.
Oxygen and Carbon Dioxide
100
This type of cells connects parts of your brain together, and sends signals from your sensory organs throughout your body.
Neurons
100
Biomolecules are polymers, which means they are made of smaller subunits called ____________.
Monomers
100
Which of the following explains why a human infant is genetically similar to, but not identical to, its mother?
A. The infant’s cells undergo mitosis as it develops from fertilization to birth.
B. The set of chromosomes that an infant inherits is determined by natural selection.
C. The infant’s genetic material is translated by both the mother’s and the father’s cells.
D. Half of the infant’s genetic material comes from the mother and half comes from the father.
D. Half of the infant’s genetic material comes from the mother and half comes from the father.
200
This organ is an accessory organ to the digestive system which produces bile, a chemical that aids in the digestion of lipids.
Liver
200
Your body requires oxygen for this process, performed by all of the cells in your body to create the molecule ATP.
Cellular Respiration
200
This organ is the processing center of your nervous system.
The Brain
200
Identify the monomer that makes up lipids and describe one way cells use lipids.
Fatty Acid
200
Scientists are studying a drug to see how effective it is at reducing the production of usable energy in cells. What should the scientists measure to determine whether the drug is effective?
A. the amount of ATP in cells
B. the amount of RNA in cells
C. the number of new cells produced by old cells
D. the number of nerve signals produced by cells
A. the amount of ATP in cells
300
Located just after the stomach, this organ is the site of nutrient absorption in the body.
Small Intestine
300
Both the digestive system and the respiratory system use this muscular tube that connects the nose, mouth, and throat.
The Pharynx
300
Name the two types of neurons that either receive stimulus inputs or produce a response as an output.
Sensory Neurons and Motor Neurons
300
Identify the monomer that makes up nucleic acids and describe one way cells use nucleic acids.
Nucleotide
300
Kudzu is an invasive plant that can grow as much as one foot in a day. A partial food web for an ecosystem is shown. Suppose kudzu invades this ecosystem.
Select three organisms that would most likely compete with kudzu in this ecosystem.
Oak tree, Grass, and Wildflower
400
The digestive system connects to the circulatory system in the small intestine, at small finger-like projections called _________.
Villi
400
The respiratory system connects to the circulatory system in the lungs, where gases are exchanged at the ____________.
Alveoli
400
The circulatory system work closely with the nervous system, transporting _________, a type of signal that gets released when a stimulus is detected.
Hormones
400
Identify the monomer that makes up carbohydrates, and describe one way cells use carbohydrates.
Monosaccharide
400
Which of the following best explains why bacteria are able to adapt to changing environmental conditions?
A. Bacteria have DNA that rarely mutates in the population.
B. Bacteria reproduce rapidly, allowing mutations to increase in the population.
C. Bacteria reproduce asexually, causing little genetic variation in the population.
D. Bacteria exchange genetic material, which increases the number of chromosomes in the population.
B. Bacteria reproduce rapidly, allowing mutations to increase in the population.
500
Match each description with the appropriate box to show the primary digestive function of each structure.
Mechanical breakdown > Mouth, Mechanical mixing > Stomach, Absorption of water > Large Intestine
500
Which of the following best explains the data in the table?
A. The nose filters out nitrogen gas so only oxygen and carbon dioxide gases enter the lungs.
B. The walls of the trachea allow only carbon dioxide gas and nitrogen gas to move out of the body.
C. As air enters the larynx, it is warmed, causing some oxygen gas to be converted to carbon dioxide gas.
D. As air enters the alveoli, some oxygen moves into the blood and some carbon dioxide moves out of the blood.
D. As air enters the alveoli, some oxygen moves into the blood and some carbon dioxide moves out of the blood.
500
Which structure would complete the pathway?
A. Blood Vessel
B. Endocrine Gland
C. Sensory Neuron
D. Smooth Muscle
C. Sensory Neuron
500
Milk contains a high concentration of the carbohydrate lactose. What is the basic structure of lactose?
A. Two monosaccharides joined together
B. A chain of amino acids in a helix shape
C. Two fatty acids joined to a phosphate group
D. A chain of alternating sugar and phosphate groups
A. Two monosaccharides joined together
500
The diagram represents a chain of amino acids. The different shapes represent different amino acids.
A scientist wants to produce a single strand of DNA that codes for this amino acid chain. How many nucleotides will be in the DNA that the scientist produces?
A. 5 nucleotides
B. 6 nucleotides
C. 12 nucleotides
D. 18 nucleotides
D. 18 nucleotides