Human Biology Exam 1 (Ch1-4)
Questions and Answers
"An athlete who uses dietary supplements will perform better than one who doesn't."
This statement would be an example of? - ANSWER-a hypothesis
If an object were collected on Mars by the rover Curiosity, it would be considered a
living organism if it ________.
A. had metabolic activities and maintained homeostasis
B. contained DNA and reproduced
C. responded to environmental stimuli
D. All of these answers are correct - ANSWER-D
Heart muscle works hard and therefore consumes much ATP. What organelles
would you expect to be especially numerous in the heart muscle cells? - ANSWER-
Mitochondria
From what step of cellular respiration does the cell get the most amount of ATP? -
ANSWER-Electron transport chain
The pH scale directly measures... - ANSWER-acid concentration
Humans belong to what domain? - ANSWER-Eukarya
The structures that join together adjacent cells in tissues by connecting their cell
membranes are called... - ANSWER-cell junctions
The structures that join together adjacent cells in tissues by connecting their cell
membranes are not... - ANSWER-the same for all types of cells
The structures that join together adjacent cells in tissues by connecting their cell
membranes are divided into three types: - ANSWER-tight, adhesion, and gap
junctions
When the chemical oligomycin is added to cells, the production of ATP is blocked,
meaning no ATP is made. Which of the movements across the plasma membrane is
affected? - ANSWER-active transport
The compound magnesium chloride turns into one Mg2+ and two Cl- when placed in
water. This means that the Mg and Cl atoms are held together normally by a(n)... -
ANSWER-ionic bond
A form of diffusion in which the molecules move from high concentration to low
concentration using a protein molecule instead of just crossing between the
phospholipids of the plasma membrane is called... - ANSWER-Facilitated diffusion
Questions and Answers
"An athlete who uses dietary supplements will perform better than one who doesn't."
This statement would be an example of? - ANSWER-a hypothesis
If an object were collected on Mars by the rover Curiosity, it would be considered a
living organism if it ________.
A. had metabolic activities and maintained homeostasis
B. contained DNA and reproduced
C. responded to environmental stimuli
D. All of these answers are correct - ANSWER-D
Heart muscle works hard and therefore consumes much ATP. What organelles
would you expect to be especially numerous in the heart muscle cells? - ANSWER-
Mitochondria
From what step of cellular respiration does the cell get the most amount of ATP? -
ANSWER-Electron transport chain
The pH scale directly measures... - ANSWER-acid concentration
Humans belong to what domain? - ANSWER-Eukarya
The structures that join together adjacent cells in tissues by connecting their cell
membranes are called... - ANSWER-cell junctions
The structures that join together adjacent cells in tissues by connecting their cell
membranes are not... - ANSWER-the same for all types of cells
The structures that join together adjacent cells in tissues by connecting their cell
membranes are divided into three types: - ANSWER-tight, adhesion, and gap
junctions
When the chemical oligomycin is added to cells, the production of ATP is blocked,
meaning no ATP is made. Which of the movements across the plasma membrane is
affected? - ANSWER-active transport
The compound magnesium chloride turns into one Mg2+ and two Cl- when placed in
water. This means that the Mg and Cl atoms are held together normally by a(n)... -
ANSWER-ionic bond
A form of diffusion in which the molecules move from high concentration to low
concentration using a protein molecule instead of just crossing between the
phospholipids of the plasma membrane is called... - ANSWER-Facilitated diffusion
