Test
BIO 348 Exam 1
Preguntas del test (32)
1Which of the following correctly describe(s) the differences between muscle tissue types
- Asmooth muscle cells may have gap junctions, but skeletal muscle cells never have gap junctions
- B
skeletal muscle cells contain myofilaments, but smooth muscle does not - Ccardiac muscle cells are multinucleate, but smooth muscle cells are uninucleate
- D
skeletal muscle is voluntarily controlled, but cardiac muscle is involuntary
2Muscle compartments
- Aare comprised of groups of muscles that work together (synergistically) to produce a movement
- B
are surrounded by connective tissue called perimysium - Care potential spaces created by interconnected connective tissues that extend from the superficial fascia to the endomysium of the muscle
- Dsupport the passage of large blood vessels and nerves supplying skeletal muscles
3Motor neurons that control skeletal muscle
- Ahave cell bodies located in the gray matter of the spinal cord
- Bhave one or more axons, depending on how many muscle cells it innervates
- Cmay be controlled voluntarily or involuntarily
- Dwith all the muscle cells it innervates comprises a motor unit
- Ahave cell bodies located in the gray matter of the spinal cord
4All of the required components of a polysynaptic reflex arc in correct sequence are
- Asensory neuron-motor neuron-effector
- Bsensory neuron-interneuron-motor neuron
- Creceptor-sensory neuron-interneuron-motor neuron-effector
- Dreceptor-interneuron-effector
- Asensory neuron-motor neuron-effector
5The skeletal muscle stretch reflex does not result in conscious perception.
- AVerdadero
- BFalso
6Proteins (choose all that apply)
- Amay be used by cells to produce ATP
- Bare built from 20 possible amino acids
- Care monomers
- Dare made by binding amino acids together by the process of dehydration synthesis (aka condensation)
- Amay be used by cells to produce ATP
7The functions of proteins in human cells include (choose all that apply)
- Ainheritance
- BSupport and intracellular movement
- Ctransmembrane transport
- Denzymes
- Ainheritance
8The basic unit of life (choose all that apply)
- Amust be able to respond to short-term changes in its environment and maintain function
- Bis classified as either carbohydrate, protein, lipid, or nucleic acid
- Cis able to reproduce itself
- Dis composed of the same set of chemical elements as non-living things
- Amust be able to respond to short-term changes in its environment and maintain function
9One important difference between living and non-living things is
- Aonly living things respond to short-term changes in the environment to maintain function
- Bnon-living things do not absorb the energy of sunlight
- Cnon-living things do not release energy
- Dcarbon is found only in living things
- Aonly living things respond to short-term changes in the environment to maintain function
10Which one of the following best describes the metabolism of an organism
- Auses up a significant amount of ATP
- Bthe efficient conversion of kinetic energy into potential energy
- Cincludes all the chemical reactions that take place within that organism
- Dmust occur at a constant rate at all times
11Cell membranes are made mostly of
- Acholesterol
- Bphospholipids
- Cproteins
- Dwater
12Enzymes (choose all that apply)
- Acontain covalent bonds between monomers
- Bcatalyze chemical reactions that otherwise would never happen
- Care present at all times during the life of a cell
- Dare manufactured at ribosomes.
- Acontain covalent bonds between monomers
13All cells must manufacture proteins, so all cells must have
- AATP
- BDNA
- Cribosomes
- Damino acids
14What do atoms form when they share a pair of electrons? (choose all that apply)
- Amolecules
- Bions
- Ccovalent bonds
- Disotopes
15The attraction of water molecules to each other (choose all that apply)
- Amakes it easier for water molecules to evaporate
- Ballows them to dissolve all carbon containing molecules
- Cis best explained by their tendency to form hydrogen bonds
- Dhelps the body resist changes in temperature
- Amakes it easier for water molecules to evaporate
16Nitrogen (N) is much more electronegative than hydrogen (H). Which of the following statements is correct about ammonia (NH3)?
- Aeach hydrogen atom in the molecule has a partial positive charge
- Bthe nitrogen atom has a strong positive charge
- Ceach hydrogen atom has a slight negative charge
- Dthere are hydrogen bonds between the hydrogen atoms of the NH3 molecule
- Aeach hydrogen atom in the molecule has a partial positive charge
17Which substance is the most basic?
- AVinegar pH 6.5)
- BWindex Window Cleaner (pH 7.8)
- CSimple Green All-Purpose Cleaner (pH 9.5)
- DClorox (pH 8.2)
- AVinegar pH 6.5)
18Chemical buffers help resist an acidic shift in pH by
- Acombining with H+ released from acids
- Bcombining with OH-
- Creleasing H+
- Dforming hydrogen bonds
- Acombining with H+ released from acids
19ATP (choose all that apply)
- A
is manufactured by re-arranging the carbon skeleton and other elements in food molecules - B
cannot be stored in a cell for future use - C
is both used and made in cellular respiration - D
is a carbohydrate
- A
20Which of the following cell organelles provide a place for metabolic reactions that either make or use cellular energy?
- Amitochondria
- Bnucleus
- Crough endoplasmic reticulum
- Dgolgi apparatus
- Amitochondria
21Some white blood cells (WBCs) phagocytize invading pathogens, such as bacteria. Which of the following is/are true about this function?
- AWBCs manufacture digestive enzymes for intracellular destruction
- BDestruction of phagocytized material takes place in the cytosol of the WBC
- CPhagocytosis is one form of active transport across the plasma membrane of the cell.
- DLysosomes are unique to some WBCs; not all cells have lysosomes since not all cells phagocytize bacteria.
22Mitosis refers only to nuclear division. Separation of the entire cell into two daughter cells following mitosis is called
- A
cytokinesis - Bmitosis
- Cmeiosis
- Dkaryokinesis
- A
23Phospholipids of the plasma membrane
- A
are arranged as a bilayer with their polar heads sandwiched between the nonpolar tails - B
are arranged in a bilayer with their non-polar tails sandwiched between polar heads - C
around a central layer of cholesterol - D
prevent the passive transport of most water soluble solutes across the membrane
- A
24An example of a tissue in the body is
- Aserous membrane
- Bepithelium
- Cstomach
- Dskeletal muscle cell
25The zygote
- Ais diploid
- Bis the origin of the tissues creating the embryo, but not the tissues that produce the placenta
- C
implants in the uterus - D
is another name for an egg in the ovary
26The process that involves the movement of cells into new relative positions in an embryo
- A
produces the three embryonic germ layers - B
is called cleavage - C
results in fertilization - D
results in morphogenesis
- A
27True or False. Without the formation of ectoderm, the embryo would not develop a nervous system.
- AVerdadero
- BFalso
28Which of the following is/are true about a lumen in the human body?
- A
would be lined by an epithelial tissue - B
is a space through which light is meant to pass - C
is the hollow interior of an organ - D
the surface of the body is considered a lumen, since it is covered with epithelial tissue
- A
29The skeletal system functions
- A
as a boundary organ system, exchanging minerals with the outside environment - Bto release calcium and other minerals from the matrix of bone tissue to help maintain homeostasis
- C
as the only protection for the visceral organs of the abdominal cavity - D
produce movement, by providing a framework against skeletal muscle tissues work.
- A
30Compact bone tissue organization
- Acovers the surface of all bones
- Baround the medullary cavity of a long bone is surrounded by periosteum and lined by endosteum
- C
contains osteons - D
lacks a direct blood supply
- Acovers the surface of all bones
31Which of the following is/are true about bone marrow
- A
red bone marrow is found in flat bones only - Bbone marrow and all bone tissues are derived from endoderm
- Cred bone marrow produces red blood cells and yellow bone marrow produces white blood cells
- Dyellow bone marrow contains connective tissues that support the passage of blood vessels and nerves in the medullary cavity of long bones
- A
32True or False. Canaliculi contain blood vessels that supply osteocytes with a means of nutrient and waste exchange.
- AVerdadero
- BFalso
Información
- Descripción
- collective pre-lecture quizzes
- Autor
- erinkline
- Idioma
- English
- Visitas
- 132
- Valoración
- Aún sin valoraciones Valora este test