In this collection there will be a bunch of biology multiple Choice and Questions, It will be useful for all medical, science, chemistry and pharmacy students or any student who has biology tests
Science Bowl
BIOLOGY
Biology - 21
BIOL-91; Multiple Choice: When a human donor gives a pint of blood, it usually requires how
many weeks for the body RESERVE of red corpuscles to be replaced? Is it:
a) 1 week
b) 3 weeks
c) 7 weeks
d) 21 weeks
ANSWER: C -- 7 weeks
BIOL-91; Short Answer: There are three substances found in human blood which carry oxygen
and which begin with the letter "H". Name two of these substances.
ANSWER: Hemoglobin, Hemocyanin, Hemerythrin
BIOL-91 Multiple Choice: The several types of white blood cells are sometime collectively
referred to as:
a) erythrocytes
(pron: eh-rith-row-cites)
b) leukocytes
(pron: lew-kah-cites)
c) erythroblasts
(pron: eh-rith-rah-blast)
d) thrombocytes
(pron: throm-bow-cites)
ANSWER: B -- leukocytes
BIOL-91; Multiple Choice: The condition in which there is a DECREASE in the number of white
blood cells in humans is known as:
a) leukocytosis
(pron: lew-kO-sigh-toe-sis)
b) leukopenia
(pron: lew-kO-pea-nee-ah)
c) leukemia
(pron: lew-kee-me-ah)
d) leukohyperia
(pron: lew-kO-high-per-e-ah)
ANSWER: B -- leukopenia
BIOL-91; Multiple Choice: The smallest of the FORMED elements of the blood are the:
a) white cells
b) red cells
c) platelets
d) erythrocytes
ANSWER: C -- platelets
Science Bowl
BIOLOGY
Biology - 22
BIOL-91; Multiple Choice: Which of the following statements concerning platelets is
INCORRECT. Platelets:
a) contain DNA
b) are roughly disk-shaped
c) have little ability to synthesize proteins
d) are between 1/2 and 1/3 the diameter of the red cell
ANSWER: A -- contain DNA
BIOL-91; Short Answer: What is the primary function of the platelets in huma blood?
ANSWER: clotting or blocking leaks from blood vessels
BIOL-91; Multiple Choice: When a wound occurs in humans, the platelets in th blood activate a
substance which starts the clotting process. The substance which starts the clotting is:
a) adenosine (pron: ah-den-ah-seen)
b) histamine
c) lecithin
(pron: less-ah-thin)
d) thrombin
ANSWER: D -- Thrombin
BIOL-91; Multiple Choice: When looking at the cross section of the human tibia, one finds the
RED marrow in the:
a) medullary cavity
b) cancellous bone
c) periosteum
d) epiphysis
ANSWER: A -- medullary cavity
BIOL-91; Multiple Choice: Lengthening of long bones in humans occurs in a particular area of
the bone. This area is called the:
a) medullary canal
b) cancellous bone
c) periosteum
(pron: per-E-ahs-tee-em)
d) epiphysis
(pron: eh-pif-eh-sis)
ANSWER: D -- Epiphysis
Science Bowl
BIOLOGY
Biology - 23
BIOL-91; Multiple Choice: The part of the human brain which is an important relay station for
the sensory impulses and also is the origin of many of the involuntary acts of the eye such as the
narrowing of the pupil in bright light is the:
a) hypothalamus
b) midbrain
c) corpus callosum
d) cerebellum
ANSWER: B -- Midbrain
BIOL-91; Multiple Choice: In the human brain, body temperature, metabolism, heart rate, sexual
development, sleep and the body's use of fat and water are influenced by this region of the brain.
This region of the brain is the:
a) hypothalamus
b) midbrain
c) corpus callosum
d) cerebellum
ANSWER: A -- hypothalamus
BIOL-91; Multiple Choice: In which cerebral lobes is the speech center located? Is it the:
a) frontal
b) parietal
c) temporal
d) occipital
ANSWER: A -- frontal
BIOL-91; Multiple Choice: In most axons, the myelin sheath is interrupted at intervals of about 1
millimeter or more. These interruptions are called the:
a) glial
b) nodes of Ranvier (pron: ron-vee-ay)
c) collaterals
d) nodes of Babinet
ANSWER: B -- Nodes of Ranvier
Science Bowl
BIOLOGY
Biology - 24
BIOL-91; Short Answer: Mosses and liverworts comprise this subdivision of plants. Name this
plant subdivision.
ANSWER: Bryophytes (pron: bry-eh-fites) or Bryophyta
BIOL-91; Short Answer: This disease, caused by infection with the gram-negative Yersinia
pestis, is transmitted by fleas from rats to humans What is the more common name for this
disease?
ANSWER: Bubonic Plague or Black Death
BIOL-91; Short Answer: In the mammalian body, this element plays many important roles. Try
to identify this element with the fewest number of clues. This element is required to insure the
integrity and permeability of cell membranes, to regulate nerve and muscle excitability, to help
maintain normal muscular contraction, and to assure cardiac rhythmicity. It also plays a essential
role in several of the enzymatic steps involved in blood coagulation and is the most important
element of bone salt. Name this element.
ANSWER: Calcium
BIOL-91; Multiple Choice: What eight-letter name starting with the letter "O" is given to that
branch of medical science concerned with the study of tumors?
ANSWER: Oncology
BIOL-91; Short Answer: In the more highly developed animals, such as humans this gas is used
to regulate the activity of the heart, the blood vessels, and the respiratory system. WORKING
MUSCLES PRODUCE A LARGE AMOUNT OF THI SUBSTANCE. Narcosis due to this gas
is characterized by mental disturbances which can include confusion, headache, low blood
pressure and hypothermia. Name this gas.
ANSWER: Carbon Dioxide or CO2
BIOL-91; Multiple Choice: Cariology is the study of the:
a) human heart
b) tooth decay
c) kidneys
d) liver
ANSWER: B -- Tooth Decay
Science Bowl
BIOLOGY
Biology - 25
BIOL-91; Multiple Choice: Various types of cartilage can be found in the huma BIOL-91; Short
Answer: The larval form of butterflies and moths is more commonly known as what?
ANSWER: caterpillar
BIOL-91 Short Answer: Name the sac-like, blind pouch of the large intestine, situated below the
level of the junction of the small intestine into the side of the large intestine. At the lower portion
of this pouch one finds the appendix.
ANSWER: Cecum or Caecum
BIOL-91; Multiple Choice: During the final stage of cell division, the mitotic apparatus
disappears, the chromosomes become attenuated, the centrioles duplicate and split, the nuclear
membrane becomes reconstituted and the nucleolus reappears. This phase of cell division is
known as:
a) prophase
(pron: prO-phase)
b) metaphase
c) anaphase
d) telophase
ANSWER: D -- Telophase
BIOL-91; Multiple Choice: In cell division, the phase following the metaphas is known as:
a) prophase
b) anaphase
c) telophase
d) extophase
ANSWER: B -- Anaphase
BIOL-91; Short Answer: All cells of an organism find their lineage from a single fertilized cell.
This single fertilized cell is called what?
ANSWER: Zygote
BIOL-91; Multiple Choice: Name the clear watery liquid that surrounds the brain and spinal cord
and fills the four cavities or ventricles of the brain.
ANSWER: Cerebrospinal Fluid
Science Bowl
BIOLOGY
Biology - 26
BIOL-91; Multiple Choice: The order of insects which includes beetles is known as:
a) Coleoptera
(pron: kO-lee-op-teh-rah)
b) Orthoptera
(pron: or-tho-op-teh-rah)
c) Hymenoptera
(pron: high-meh-nop-teh-rah)
d) Diptera
(pron: dip-teh-rah)
ANSWER: A -- Coleoptera
BIOL-91; Multiple Choice: This major protein component of connective tissue in mammals
comprises most of the organic matter of skin, tendons, bones, and teeth, and occurs as fibrous
inclusions in most other body structures. Is this material:
a) elastin
b) collagen
c) fatty acids
d) keratin
ANSWER: B -- collagen
BIOL-91; Multiple Choice: Sickle cell anemia and Huntington's chorea are both:
a) virus-related diseases
b) bacteria-related diseases
c) congenital disorders
d) none of the above
ANSWER: C -- Congenital Disorders
BIOL-91; Multiple Choice: In most species of Paramecium there are how many contractile
vacuoles? Is it:
a) one
b) two
c) three
d) four
ANSWER: B -- Two
Science Bowl
BIOLOGY
Biology - 27
BIOL-91; Multiple Choice: The major fibrous proteins are:
a) peptone and edestin
b) glutelin and leucine
c) valine and lysine
d) myosin and actin
ANSWER: D -- Myosin and Actin
BIOL-91; Short Answer: Name the outer portion of a stem or root, bounded externally by the
epidermis, and internally by the cells of the pericycle.
ANSWER: Cortex
BIOL-91; Multiple Choice: Costal cartilage:
a) attach the ribs to the sternum
b) cover the ends of the femur
c) is found in the pinna of the ear
d) forms the intervertebral disks of the backbone
ANSWER: A -- Attach the ribs to the sternum
BIOL-91; Multiple Choice: From which grandparent or grandparents did you inherit your
mitochondria (pron: my-toe-chon-dria)? Is it your:
a) mother's parents
b) paternal grandfather
c) grand mothers
d) maternal grandmother
ANSWER: D -- maternal grandmother
BIOL-91; Multiple Choice: Which of the following are NOT part of a neuron?
a) synapse
b) axon
c) Nissl bodies
d) dendrite
ANSWER: A -- SYNAPSE
Science Bowl
BIOLOGY
Biology - 28
BIOL-91; Multiple Choice: The resting potential of a neuron is dependent on what two ions?
a) lead and calcium ions
b) calcium and phosphate ions
c) sodium and potassium ions
d) potassium and phosphate ions
ANSWER: C -- sodium and potassium ions
BIOL-91; Multiple Choice: Which of the following is NOT a type of neuron?
a) sensory
b) motor
c) association
d) stimulatory
ANSWER: D -- STIMULATORY
BIOL-91; Multiple Choice: Melatonin (pron: mel-eh-toe-nin) is produced by the:
a) skin
b) pineal gland
c) liver
d) pituitary gland
ANSWER: B -- PINEAL GLAND
BIOL-91; Multiple Choice: Which of the following statements is TRUE of insulin? Is it:
a) secreted by the pancreas
b) a protein
c) involved in the metabolism of glucose
d) all of the above
ANSWER: D -- ALL OF THE ABOVE
BIOL-91; Multiple Choice: Select the hormone INCORRECTLY paired with its target.
a) TSH - thyroid gland
b) ACTH - anterior pituitary
c) LH - ovary or testis
d) MSH - melanocytes
(pron: meh-lan-o-cite)
ANSWER: D -- MSH - MELANOCYTES
Science Bowl
BIOLOGY
Biology - 29
BIOL-91; Multiple Choice: Which of the following tissues secrete hormones?
a) pancreas
b) ovaries
c) gastro-intestinal tract
d) all of the above
ANSWER: D -- ALL OF THE ABOVE
BIOL-91; Multiple Choice: Which of the following structures is directly attached to the ovary?
a) oviduct
b) uterus
c) suspensory ligaments
d) vagina
ANSWER: C -- SUSPENSORY LIGAMENTS
BIOL-91; Multiple Choice: Fertilization of the ovum by the sperm usually occurs in the:
a) oviduct
b) vagina
c) uterus
d) ovary
ANSWER: A -- OVIDUCT
BIOL-91; Multiple Choice: The corpeus luteum secretes:
a) HCG
b) LH
c) FSH
d) progesterone
ANSWER: D -- PROGESTERONE
BIOL-91; Multiple Choice: Which of the following does sperm NOT travel through?
a) ureter
b) urethra
c) vas deferens
d) epididymus
ANSWER: A -- URETER
Science Bowl
BIOLOGY
Biology - 30
BIOL-91; Multiple Choice: The placenta in humans is derived from the:
a) embryo only
b) uterus only
c) endometrium and embryo
d) none of the above
ANSWER: C -- ENDOMETRIUM AND EMBRYO
BIOL-91; Multiple Choice: The number of mature gametes resulting from meiosi in the female is:
a) 1
b) 2
c) 3
d) 4
ANSWER: A -- 1
BIOL-91; Multiple Choice: Synapsis and crossing over of chromosomes occurs i which phases of
meiosis?
a) Interphase
b) Prophase
c) Meterphase
d) Teleophase
ANSWER: B -- PROPHASE
BIOL-91; Multiple Choice: A layer of dead skin cells is found in the:
a) subcutaneous tissue
b) dermis
c) epidermis
d) no dead cells are in the skin
ANSWER: C -- EPIDERMIS
BIOL-91; Multiple Choice: Glial (pron: glee-el) cells are found in the:
a) muscular system
b) digestive system
c) endocrine system (pron: en-de-kren)
d) nervous system
ANSWER: D -- NERVOUS SYSTEM
Science Bowl
BIOLOGY
Biology - 31
BIOL-91; Multiple Choice: Myelin sheaths are found:
a) surrounding tendons
b) covering the brain
c) covering muscles
d) around axons of neurons
ANSWER: D -- AROUND AXONS OF NEURONS
BIOL-91; Multiple Choice: Which of the following is an INCORRECT statement about the
parasympathetic system?
a) It increases digestive action.
b) It is the fight or flight system.
c) slows breathing rate
d) establishes resting state
ANSWER: B -- IT IS THE FIGHT OR FLIGHT SYSTEM.
BIOL-91; Multiple Choice: Which of the following is NOT a component of the human axial
skeleton?
a) sternum
b) vertebral column
c) tarsals
d) skull
ANSWER: C -- TARSALS
BIOL-91; Multiple Choice: Phalanges are found in the:
a) feet
b) skull
c) hip
d) chest
ANSWER: A -- FEET
Science Bowl
BIOLOGY
Biology - 32
BIOL-91; Multiple Choice: The phase of contraction of a muscle occurs when:
a) tropomyosin binds and releases actin
b) myosin binds and releases actin
c) actin binds and releases myosin
d) none of the above
ANSWER: B -- MYOSIN BINDS AND RELEASES ACTIN
BIOL-91; Multiple Choice: Select the INCORRECT statement concerning the muscular system.
a) Bones contact other bones at joints.
b) Flexors decrease the angle of a joint.
c) Adductors move a limb away from the midline.
d) Tendons attach muscle to bone.
ANSWER: C -- ADDUCTORS MOVE A LIMB AWAY FROM THE MIDLINE.
BIOL-91; Multiple Choice: Which type of muscle is a syncytium (pron: sin-sish-E-um)?
a) skeletal
b) cardiac
c) smooth
d) all of the above
ANSWER: A -- SKELETAL
BIOL-91; Multiple Choice: When the potential difference across a membrane of a neuron equals
the threshold, what results?
a) movement of the membrane
b) action potential
c) relaxation
d) contraction
ANSWER: B -- ACTION POTENTIAL
BIOL-91; Multiple Choice: What ions determine the resting potential of a nerve?
a) sodium and calcium
b) calcium and copper
c) potassium and calcium
d) sodium and potassium
ANSWER: D -- SODIUM AND POTASSIUM
Science Bowl
BIOLOGY
Biology - 33
BIOL-91; Multiple Choice: Which structure does NOT play a part in the motion of cells?
a) microvilli
b) cilia
c) flagella
d) pseudopodia
ANSWER: A -- MICROVILLI
BIOL-91; Multiple Choice: Bacteriophage (pron: back-teer-e-o-faj) are:
a) bacteria
b) bacteria precursors
c) viruses
d) agents which cause the production of bacteria
ANSWER: C -- VIRUSES
BIOL-91; Multiple Choice: Which of the following is NOT a mode of genetic exchange within a
bacterial population?
a) conjugation
b) transduction
c) transformation
d) translation
ANSWER: D -- TRANSLATION
BIOL-91; Multiple Choice: The blastula develops into the:
a) gastrula
b) morula
c) endoderm
d) zygote
ANSWER: A -- GASTRULA
BIOL-91; Multiple Choice: Tissue differentiation begins at which stage?
a) zygote
b) morula
c) blastula
d) gastrula
ANSWER: D -- GASTRULA
Science Bowl
BIOLOGY
Biology - 34
BIOL-91; Multiple Choice: The nervous system develops from which germ layer?
a) ectoderm
b) mesoderm
c) endoderm
d) none of the above
ANSWER: A -- ECTODERM
BIOL-91; Multiple Choice: During inspiration, the diaphragm moves:
a) down by contraction
b) down by relaxation
c) up by contraction
d) up by relaxation
ANSWER: A -- DOWN BY CONTRACTION
BIOL-91; Multiple Choice: The valve between the right ventricle and the pulmonary artery is the:
a) mitral valve
b) semilunar valve
c) bicuspid valve
d) tricuspid valve
ANSWER: A -- SEMILUNAR VALVE
BIOL-91; Multiple Choice: Which of the following is NOT a function of the kidney?
a) excretion of urea
b) regulation of fluids and electrolytes
c) elimination of toxic substances
d) defecation
ANSWER: D -- DEFECATION
BIOL-91; Multiple Choice: When CO2 (carbon dioxide) is dissolved in water, i yields a solution
that:
a) has acidic properties
b) has basic properties
c) is neutral
ANSWER: A -- HAS ACIDIC PROPERTIES
BIOL-91; Multiple Choice: Digestion of carbohydrates begins where?
Science Bowl
BIOLOGY
Biology - 35
a) small intestines
b) colon
c) mouth
d) stomach
ANSWER: C -- MOUTH
BIOL-91; Multiple Choice: Digestion of PROTEINS begins in which of the following human
organs?
a) small intestines
b) colon
c) mouth
d) stomach
ANSWER: D -- STOMACH
BIOL-91; Multiple Choice: Bile has what function in digestion?
a) emulsify lipids
b) digest proteins
c) gluconeogenesis
(pron: glue-ko-nee-o-gen-e-sis)
d) digest carbohydrates
ANSWER: A -- EMULSIFY LIPIDS
BIOL-91; Multiple Choice: Of the following, which is a basic need of all living things?
a) oxygen gas
b) light
c) hydrogen gas
d) water
ANSWER: D -- WATER
BIOL-91; Multiple Choice: A botanist is most likely to study:
a) Monerans
b) Protistans (pron: pro-tis-tans)
c) Fungi
d) Virions
ANSWER: C -- FUNGI
BIOL-91; Multiple Choice: A virus must do what to reproduce?
Science Bowl
BIOLOGY
Biology - 36
a) form a latent virus
b) undergo transformation
c) infect a cell
d) conjugate
ANSWER: C -- INFECT A CELL
BIOL-91; Multiple Choice: The chromosomes of a eukaryotic cell are located i the:
a) mitochondria
(pron: my-toe-kon-dria)
b) nucleus
c) ribosome
d) endoplasma
ANSWER: B -- NUCLEUS
BIOL-91; Multiple Choice: Which of the following is an example of symbiosis?
a) lichen
b) slime mold
c) amoeba
d) moss
ANSWER: A -- LICHEN
BIOL-91; Multiple Choice: Oxygen enters the body of a grasshopper through:
a) gills
b) spinnerets
c) spiracles
d) book lungs
ANSWER: C -- SPIRACLES
BIOL-91; Multiple Choice: A heart with a single atrium and single ventricle is a characteristic of
adult:
a) amphibians
b) arthropods
c) birds
d) fish
ANSWER: D -- FISH
BIOL-91; Short Answer: This organ is a thick multi-layered structure which i richly endowed
Science Bowl
BIOLOGY
Biology - 37
with blood vessels. It is also the largest organ of the BIOL-91; Short Answer: Name the four
main excretory organs identified in man
ANSWER: SKIN, KIDNEYS, LUNGS, INTESTINAL TRACT
BIOL-91; Multiple Choice: The physical appearance and properties of an organism which is the
expression of the genetic makeup is called the:
a) phenotype
b) pangenesis
c) parental trait
d) genotype
ANSWER: A -- PHENOTYPE
BIOL-91; Short Answer: How many nucleotides make up a codon (pron: kO-don)?
ANSWER: 3
BIOL-91; Multiple Choice: The complex of sugar polymers and proteins which are patchily
distributed on the plasma membranes of animal cells is called
a) cellulose
b) chitin
c) glyocalyx
d) cytoskeleton
ANSWER: C -- GLYOCALYX
BIOL-91; Short Answer: During cellular respiration, glucose is oxidized completely to what two
compounds?
ANSWER: CO2 (CARBON DIOXIDE) AND H2O (WATER)
BIOL-91; Multiple Choice: Organisms with cells containing two sets of parental chromosomes
are called:
a) diploid
b) bisomal
c) haploid
d) autosomal
ANSWER: A -- DIPLOID
Science Bowl
BIOLOGY
Biology - 38
BIOL-91; Multiple Choice: The type of gene interaction in which the effects of one gene override
or mask the effects of other entirely different genes is called:
a) linkage
b) mutation
c) pleitropy
(pron: ply-ah-tropy)
d) epistasis
(pron: eh-pis-te-sis)
ANSWER: D -- EPISTASIS
BIOL-91; Multiple Choice: For which of the following creatures is fat the greatest percentage of
body weight?
a) termite
b) blue whale
c) zebra
d) female lion
ANSWER: B -- BLUE WHALE
BIOL-91; Multiple Choice: Which is false regarding freshwater fish?
a) their blood is hypertonic to their environment
b) they often actively take up salt
c) they excrete urine hypotonic to the blood
d) their gills actively excrete salts
ANSWER: D -- THEIR GILLS ACTIVELY EXCRETE SALTS
BIOL-91; Multiple Choice: Neutral fats, oils and waxes may be classified as:
a) lipids
b) carbohydrates
c) proteins
d) none of the above
ANSWER: A -- LIPIDS
BIOL-91; Short Answer: Name three basic morphologies of bacteria.
ANSWER: (1) COCCI (COCCUS), (2) BACILLI (BACILLUS) or ROD,
(3) SPIROCHETES or SPIRILLA or SPIRAL
Science Bowl
BIOLOGY
Biology - 39
BIOL-91; Short Answer: What is the name of the 6 carbon monosaccharide that is the universal
cellular fuel of plants and animals?
ANSWER: GLUCOSE (DEXTROSE)
BIOL-91; Multiple Choice: During which phase of the cell cycle are normal components of the
cell synthesized and assembled?
a) the M phase
b) the G1 phase
c) the S phase
d) the G2 phase
ANSWER: B -- THE G1 PHASE
BIOL-91; Multiple Choice: Which of the following is NOT a characteristic shared by most of the
members of the kingdom plantae?
a) they are multicellular
b) they are nonmotile
c) they possess bilateral symmetry
d) there is an alternation of haploid and diploid generations
ANSWER: C -- THEY POSSESS BILATERAL SYMMETRY
BIOL-91; Short Answer: Name THREE types of muscle tissue found in the human BIOL-91;
Short Answer: If an individual has two dissimilar alleles for a trait, with regard to that trait he is
said to be:
ANSWER: HETEROZYGOUS
BIOL-91; Short Answer: How many chromosomes per cell does a Down's Syndrome (trisomy
21) victim have?
ANSWER: 47
BIOL-91; Short Answer: If a male who is heterozygous for an autosomal trait mates with a
female who is also heterozygous for that trait, what percent of their offspring are likely to be
heterozygous for this trait as well?
ANSWER: 50%
Science Bowl
BIOLOGY
Biology - 40
BIOL-91; Short Answer: The monomers from which proteins are built are called
ANSWER: AMINO ACIDS
BIOL-91; Short Answer: The polysaccharide which is the primary energy storag material in
plants is:
ANSWER: STARCH
BIOL-91; Multiple Choice: The major divisions of behavior are:
a) reflex and conditioning
b) innate and learned
c) habituation and trial and error
d) taxis and biorhythm
ANSWER: B -- INNATE AND LEARNED
BIOL-91; Multiple Choice: Motivation:
a) is not dependent upon the internal physiological state.
b) is not required for innate behavior.
c) is required for learned behavior.
d) all of these
ANSWER: C -- IS REQUIRED FOR LEARNED BEHAVIOR.
BIOL-91; Multiple Choice: Innate behavior differs from learned behavior by the former being:
a) highly modifiable by external factors.
b) slightly modifiable by external factors.
c) totally modifiable by external factors.
d) completely immodifiable
ANSWER: B -- SLIGHTLY MODIFIABLE BY EXTERNAL FACTORS.
BIOL-91; Multiple Choice: Which of the following is NOT a type of learned behavior?
a) habituation
b) fixed action patterns
c) conditioning
d) imprinting
ANSWER: B -- FIXED ACTION PATTERNS