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HOMEOSTASIS:
Test Description: This review game quiz covers bacteria, plant, and human homeostasis from lessons 1-3.
Instructions: Answer all questions to get your test result.
1) Which process is most closely associated with the regulation of water loss from the leaves of trees?
A
absorption of nitrogen through leaf openings controlled by the guard cells
B
synthesis of protein by the chloroplasts in the leaf cells of the trees
C
movement of water through leaf openings controlled by the guard cells
D
digestion of water within the cytoplasm in the leaf cells of the trees
2) In the leaf of a plant, guard cells help to
A
regulate oxygen and carbon dioxide levels
B
block harmful ultraviolet rays that can disrupt chlorophyll production
C
destroy atmospheric pollutants when they enter the plant
D
transport excess glucose to the roots
3) The primary function of stomata is to
A
minimize water loss
B
facilitate gas exchange for photosynthesis
C
signal guard cells to open or close
D
convert sunlight into usable energy
4) Which statement best describes how these substances interact in photosynthesis?
A
glucose and carbon dioxide combine to produce oxygen and water
B
carbon dioxide and water combine to produce glucose and oxygen
C
glucose and oxygen combine to produce carbon dioxide and water
D
oxygen and carbon dioxide combine to produce glucose and water
5) Antibiotics are substances used to help fight an infection of Streptococcus, a bacterium that causes strep throat. Overuse of these antibiotics can
A
select for resistant organisms
B
allow organic molecules to be synthesized
C
cause a decrease in the production of enzymes
D
prevent future infections by these pathogens
6) The respiratory system includes a layer of cells in the air passages that clean the air before it gets to the lungs. This layer of cells is best classified as
A
an organ
B
a tissue
C
an organ system
D
organelle
7) A similarity between humans and many other multicellular animals is that they
A
have the same DNA sequences
B
occupy the same niche in most food webs
C
carry out autotrophic nutrition
D
are composed of organ systems
8) Which sequence best represents increasing complexity?
A
organism → cells → tissues → organelles
B
cells → organelles → organs → organism
C
tissues → cells → organelles → organs
D
organelles → cells → tissues → organs
9) One effect of uncontrolled diabetes is that the blood might develop an acidic pH. As a result, cells may not be able to regulate their internal pH. Within these cells, this could cause a disruption of the function of biological catalysts known as
A
toxins
B
antigens
C
enzymes
D
antibodies
10) A small lizard spends the morning hours lying in the sunlight until its body temperature rises. Later on in the day, the lizard rests in a shady area until its body temperature cools. This type of behavior is important to
A
detect variations
B
obtain nutrients
C
maintain homeostasis
D
attract mates
11) Medical professionals are concerned with the increase in the number of bacterial species that are resistant to antibiotics. Once resistance appears in a bacterial population, it spreads rapidly. This is most likely because
A
resistant bacteria survive in greater numbers and pass the trait to their offspring
B
populations of resistant bacteria are small
C
exposure to antibiotics increases the rate of reproduction in bacteria
D
resistant bacteria are small when compared to non-resistant bacteria
12) If the same antibiotic is used too many times, it can become less effective against a certain type of bacteria. This observation is best explained by the
A
survival and reproduction of unaffected bacteria
B
replication of viruses that attack bacteria
C
presence of pathogens in antibiotics
D
production of antibiotics by white blood cells
*select an answer for all questions
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