Chapters 1-7 (Stuart Ira Fox)
/Glands are derived from - Ans-epithelial tissue
/.Cells joined tightly together are characteristic of - Ans-Epithelial tissue
/.Cells are separated by large extracellular space is in - Ans-Connective tissue
/.Blood vessels and nerves are usually located within - Ans-Muscle tissue
/.Most organs are composed of - Ans-Epithelial, muscle, and connective tissues
/.Sweat is secreted by exocrine glands. This means that - Ans-it is secreted into a duct
/.Which of these statements about homeostasis is true? - Ans-Negative feedback
mechanisms act to correct deviations from a normal range within the internal
environment
/.In a negative feedback loop, the effector produces changes that are – Ans
Opposite indirection to the change produced by the initial stimulus
/.A hormone called parathyroid hormone tasked to help raise the blood calcium
concentration. According to the principles of negative feedback, and effective stimulus
for parathyroid hormone secretion would be - Answ-A fall in blood calcium
/.Which of these consists of dense parallel arrangements of collagen fibers?
A) skeletal muscle tissue
B) nerve tissue
C) tendons
D) dermis of the skin - Ans-Tendons
/.The act of breathing raises the blood oxygen level, lowers the blood carbon dioxide
concentration, and raises blood pH. According to the principles of negative feedback,
sensors that regulate breathing should respond to - Ans-A rise in blood carbon dioxide
concentration
/.Adult stem cells, such as those in the bone marrow, brain, or hair follicles can best be
described as ____________, whereas embryonic stem cells are described as
____________. - Ans-multipotent; pluripotent
/.Which of these statements about atoms is true? - Ans-They are electrically neutral
, /.The bond between oxygen and hydrogen and a water molecule is - Ans-A polar
covalent bond
/.Which of these is a non-polar covalent bond?
A) A bond between two carbons
B) A bond between sodium and chloride
C) A bond between two water molecules
D) A bond between nitrogen and hydrogen - Ans-A bond between two carbons
/.Solution A has a pH of 2, and solution B has a pH of 10. Which of these statements
about these solutions is true?
A) solution A has a higher hydrogen concentration than solution B.
B) Solution B is Basic.
C) Solution A is Acidic.
D) All of these are true - Ans-All of these are true
/.Glucose is - Ans-A monosaccharide
/.Digestion occurs by means of - Ans-Hydrolysis
/.Carbohydrates are stored in the liver and muscles in the form of - Ans-Glycogen
/.Lecithin is - Ans-A phospholipid
/.Which of these lipids have regulatory roles in the body?
A) Steroids
B) Prostaglandins
C) Triglycerides
D) both A & B
E) both B & C - Ans-D, Both steroids and prostaglandins
/.The tertiary structure of a protein is directly determined by - Ans-The primary structure
of the protein
/.The type of bond formed between two molecules of water is - Ans-A hydrogen bond
/.The carbon to nitrogen bond that joins amino acids together is called - Ans-A peptide
bond
/.The RNA nucleotide base that pairs with adenine in DNA is - Ans-Uracil
/.If four bases in one DNA strand are A (adenine), G (guanine), C (cytosine), and T
(thymine), the complementary bases in RNA strand made from this region are - Ans-U,
C, G, A