Bio 102 final
The cellular components of blood that transport oxygen are
red blood cells
Homo sapiens (human) is in which domain?
Eukarya
You are reading a patient's chart and decide that ovulation has happened. What did the chart show surging to make you think this?
LH
The tightly coiled structure/s inside the testes that produce the sperm cells is/are the
seminiferous tubes
The middle layer of the wall of an artery or vein, allowing it to withstand and modify blood pressure, is
smooth muscle
A neuromuscular junction is a ________ between a ________ and a ________.
synapse; muscle; neuron
A heart murmur is caused by
the heart valves not functioning properly.
Energy is one of the resources obtained by heterotrophs when they eat.
True
The DNA sequence ATGCATGC will pair with which of the following RNA strands?
UACGUACG
Applications of DNA technology may result in negative effects, including
all answers are correct
Blood
all answers are correct
Meiosis is a process that produces
all answers are correct
What might an ectotherm do to conserve or obtain body heat?
all answers are correct
Which correctly describes B cells and T cells?
all answers are correct
hysical and chemical barriers that form the first line of innate defense include
all answers are correct
The enzyme that breaks down starch is
amylase
A three-base sequence (loop) in tRNA that is complementary to a three-base sequence in mRNA is
an anticodon
If a genetic counselor examines a pedigree chart and notices an occurrence of a disease in every generation, the counselor would assume that the disease was caused by
an autosomal dominant disorder
All living organisms
are either unicellular or multicellular
The large vessels of the circulatory system that carry blood away from the heart are
arteries
An asexual process used by prokaryotes in which replicated DNA and other cell parts are distributed into two daughter cells is called
binary fission
Like the kidney, a dialysis machine filters all but what out of the blood?
blood cells
To inherit an autosomal recessive disorder requires that the person receive the allele leading to the disease from
both parents
When comparing the genetic characteristics between embryonic and adult stem cells, embryonic stem cells
can differentiate into any specialized cells, while adult stem cells can't
The small vessels from which water and dissolved substances diffuse between the blood and interstitial fluid are
capillaries
Animals that hunt and eat essentially only other animals are
carnivores
If you observe an immune reaction involving a cytotoxic T cell, it is a
cell-mediated response
In a process called ________, an army of plasma cells and memory cells are produced from stimulated B cells.
clonal selection
Bypassing a checkpoint in the cell cycle may result in a cancer cell
continuing to divide and replicate with faulty DNA.
Systolic pressure reflects the force caused by the
contraction of the ventricles
The primary function of a vaccine is to
create immunological memory without causing disease.
Animals that consume decaying organic matter as their main source of food are
detrivores
Thalidomide was given to pregnant women from 1957 to 1961 to help relieve the symptoms of morning sickness. Thalidomide binds to and inactivates the protein cereblon, which is important in limb formation. If a woman took thalidomide during the ________ period of her baby's development, it could result in stunted growth of their limbs.
embryonic
If working on a diagram of the human male reproductive system, you would label the tightly coiled tube that receives and stores sperm from one testis as the
epididymis
The condition that develops when there is excess GABA leading to excess dopamine and norepinephrine in the brain is
epilepsy
An increase in the number of red blood cells is called anemia.
false
If you see cytotoxic T cells, you know that a humoral response is underway.
false
The causes of PMS are clearly related to hormonal fluctuations, but they are not yet fully understood.
false
The type of cell that is primarily responsible for initiating and coordinating the adaptive immune response is the B cell.
false
Crossing over is more likely to separate genes on a chromosome if they are
far apart
The hormone released from the hypothalamus that stimulates release of LH and FSH in both the male and female is
gonadotropin-releasing hormone
The enzyme that unwinds DNA is
helicase
The type of skeleton that consists of fluid constrained within a layer of flexible tissue is a(n)
hydrostatic skeleton
A person has a recessive, faulty allele for a disease, but the person does not have the disease since they also have a normal dominant allele. This person
is termed a carrier
The rungs of the DNA ladder are formed by base pairs
joined by hydrogen bonds
Blood in the pulmonary artery would have ________ oxygen and ________ carbon dioxide than blood in the pulmonary vein.
less; more
Which produces bile?
liver
If a doctor tells you to bring all of the bags with blood components that you can find in the lab refrigerator to the operating room, what would you leave behind?
lymph
Genital warts are caused by HPV.
true
If presented with a person who was malnourished because of a refusal to eat, you would diagnose anorexia nervosa.
true
If you detected large amounts of ammonia in mammalian urine, you would know that the mammal in question had serious problems with liver and urinary functions.
true
In an autoimmune disease, the immune system attacks the body's self antigens.
true
The signal for the heart to contract begins at the sinoatrial node.
true
In humans, the muscular tube into which urine from the kidney first drains is the
ureter
If a woman, late in pregnancy, feels contractions of a muscular sac-like organ, she is feeling contractions of her
uterus
As part of an exam, you are given a powder to analyze. When you perform various tests, you find that it contains a single chemical that changes the pH of neutral water to a pH of 6. You would conclude that the chemical is a
weak acid
The diploid first cell of a new organism is a(n)
zygote
B cells and T cells are
lymphocytes
If the DNA in a cell consists of 20% adenine, it will also have ________ thymine.
20%
If you cross RrYy and RRyy pea plants, what fraction of the offspring will have yellow peas? R=round, r=wrinkled, Y=yellow, y=green
50%
A cervical cap is a silicone cup that fits within the vagina and covers the cervix. This contraceptive
?
A primary "antigen presenting cell," a cell that presents an antigen to a helper T cell, is a
?
Birth control pills contain a combination of estrogen and progesterone. What effect would this have on the hypothalamus?
?
Every year the common flu vaccine is designed to protect against three different strains of the influenza virus. How is your body able to raise antibodies against so many new forms of the flu virus?
?
The role of B cells in adaptive immunity is ________, while the role of T cells in adaptive immunity is ________.
?
What drives the movement of oxygen from the alveoli into the bloodstream?
?
Why do lymph nodes often become swollen during an infection?
?
In a secondary oocyte, meiosis is arrested in metaphase II until
ovulation
The endocrine gland(s) that produces hormones that help regulate blood calcium is/are the
parathyroid gland
Which of the following are the primary components of the cell membrane and contribute to its semi-permeability property?
phospholipids