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bio exam 3
Terms in this set (49)
The leading cause of preventable death in the US is cardiovascular disease. Which of the following are lifestyle modifications that would lower a person's risk of CVD?
all of the choices are means of lowering risk of CVD
Which of the following organisms lack a hydrostatic skeleton?
Disorders of the upper respiratory tract consist of all the following except for
Which of these white blood cells are phagocytic?
both neutrophils and macrophages
If Ca+ is restricted to a muscle cell, what are the potential consequences?
the myosin head would not be able to bind to the actin filament
Which statement is NOT true about red blood cells?
They are mainly produced in the liver.
What type of tissue contracts and accounts for movements of organs of the entire body?
Trace the path of inhaled air molecule in a human being
nasal cavity - pharynx - glottis - larynx - trachea - bronchi - bronchioles - alveoli
What would you find in the heart of an amphibian?
two atria and one ventricle
Oxygen is transported in blood most efficiently by
combining with hemoglobin.
A pressurized airplane cabin and an oxygen tent over a patient in a hospital both address the need of a person for oxygen. How do these compare?
The oxygen tent increases concentration of O2 while the airplane maintains total air pressure without changing concentrations
As food is swallowed it may come into contact with air in which of the following respiratory organs?
Which of the following increases the surface area available for gas exchange among various organisms?
all of these choices increase surface area
When you step on a cockroach or smash a fly, the blood appears colorless because
it does not contain hemoglobin or any other respiratory pigment
Which type of tissues would be damaged if someone was in a car accident and they had their kidney ruptured due to the force of the impact?
squamous epithelium, cuboidal epithelium, smooth muscle, neural tissues
Describe the events that occur in the clotting of blood by choosing the correct sequence of statements that outlines the process.
sequence: 3, 1, 6, 5, 2, 4, 7
The structure that absorbs nutrients from the small intestines and delivers the nutrients in the blood to the liver is the
hepatic portal vein
What is the main difference between blood and hemolymph?
blood is always contained within the blood vessels while hemolymph fills the body cavity
Which statement is not true about stomata?
The blue light component of sunlight is a signal that can cause stomata to close.
What is the correct order of blood flow through the cardiovascular system?
heart - artery - arterioles - capillaries - venules - veins
Which statement is correct about how carbon dioxide is carried in the bloodstream?
Carbon dioxide enters the bloodstream from the tissues. It then combines with hemoglobin to form carbaminohemoglobin but most of it is carried in the form of bicarbonate.
Which of the following has a four-chambered heart like humans?
birds and crocodiles (some reptiles)
Which statement about connective tissue is not true?
Fibrous connective tissue includes bone and cartilage
Which of these molecules acts as an ATPase, breaking down ATP to perform its function in muscle contraction?
Which statement about leaves is not correct?
In eudicots, the photosynthetic mesophyll is made up of an upper spongy layer and a lower palisade layer
The _____ body cavity will contain the heart, lungs, and spleen.
In order to maximize diffusion across the surfaces of a gill, oxygen-rich water flows in the opposite direction of oxygen-poor blood. This concept is called
Which of the following statements about the skeleton of a clam is not true?
the skeleton of a clam is used mainly to allow movement of the organism.
In crowded Asian regions such as Hong Kong, there is not enough room for cemeteries. However, the dead can be temporarily buried and their bones can later be exhumed and stored in an ossarium, a wall made of small concrete boxes (about eight inches by eight inches by two feet long) just large enough to contain all the human bones. These dimensions are defined by the longest bone in the human body and the bone with the largest volume, which are the ______ and the _____.
The degree of erosion in the United States is best described by the following statement.
farmland soil is eroding faster than it is being formed
Which of the following statements best describes a herbaceous eudicot stem?
Vascular bundles are arranged in a ring which stores water and the products of photosynthesis
Name the neuromuscular transmitter that is released into the synaptic cleft.
Which of the following is not a characteristic of plant cells?
centrioles are present during mitosis
has bands of actin and myosin filaments perpendicular to the length of the cell that produces contractions.
Which statement is not true about vascular tissue in plants?
Phloem cells are hollow and nonliving, and they form a continious pipeline that transports sugars
Damage to the parenchyma cells can lead to which of the following issues?
a decrease in the plant's ability to run photosynthesis or store the sugars produced from photosynthesis
Which of the following statements concerning homeostasis in body temperature is not true. The body reacts to
heat by constricting the blood vessels in the skin
speeds up the conversion of carbonic acid to carbon dioxide and water
Which would you find in the heart of a fish?
one atrium and one ventricle
"Artery" and "vein" are defined by whether they leave or enter the heart. If they were defined by whether they carried oxygenated or deoxygenated blood, we would have to change the name(s) of
the pulmonary artery and vein; they would have to be switched
Which of the following structures is an underground horizontal stem?
Which of the following statements is not correct about the arrangement of tissues in the eudicot root?
the star-shaped phloem is located in the center of the vascular cylinder, with xylem arranged between the arms of phloem.
Homeostasis is the
maintenance of normal internal conditions by means of self-regulating mechanisms
Which organisms use negative pressure to move air into the lungs?
all of these use negative pressure to move air into their lungs
Which features are required for efficient external respiration to take place?
the gas exchange region must be moist, thin, and have a large surface area
Which structure does blood pass through immediately before entering the right atrium?
Plant roots function to
All of the choices are plant root functions.
Which association is not correct?
Cystic fibrosis - infectious disease that is caused by the bacterium M. tuberculosis
The system of flexing and extending muscles makes movement of appendages easy to understand. But how are some actions possible (sticking out your tongue, beating of your heart) when these structures have no bone structure with opposing flexors and extensors in them?
muscles cells running diagonally or crosswise amidst the longitudinal muscles must contract and force the long relaxed muscle cells to elongate
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