High Yield DAT Biology Test 10
Questions And Answers
What are the functions of the skin? - Answer - Homeostasis, protection, temperature regulation, stimuli
reception, and vitamin D production
Epidermis - Answer - Made of stratified squamous keratinized epithelium and has no blood vessels
What are the layers of epidermis, from superficial to deep? - Answer - Stratum corneum (corneocytes),
stratum lucidum (dying keratinocytes), stratum granulosum (lamerllar bodies), stratum spinosum
(desmosomes for strenth and langerhans for immunity), and stratum basale (merkel cells, stem cells, and
melanocytes)
Where are melanocytes and merkel cells found? - Answer - Stratum basale
Where are elastin and collagen found? What happens when they break down? - Answer - In the dermis;
wrinkling of skin
Hypodermis - Answer - Contains layers of fat and blood vessels. Also known as the "subcutaneous fat
layer", but is not considered a part of the skin
glomular filtrate - Answer - Contains the same substance as blood plasma, which the exception of larger
proteins like blood
Nephron - Answer - basic functional unit of the kidney. It has four functions: Filtration, excretion,
secretion, and resorption
What is the filtrate path in order? - Answer - Glomerus > Bowman's capsule > proximal tubule > loop of
henle > distal tubule > collecting duct > renal pelvis > ureter
Fenestrations/podocytes - Answer - Help to filter out small substances to the Bowman's capsules, while
the larger things remain in the blood
, Aldosterone - Answer - increases water and salt reabsorption by kidney tubules
antidiuretic hormone (ADH) - Answer - Hormone produced by the neurosecretory cells in the
hypothalamus that stimulates water reabsorption from kidney tubule cells into the blood and
vasoconstriction of arterioles.
Uric acid - Answer - Secretion that is water soluble and less toxic than ammonia and urea. It forms
crystals.
freshwater fish - Answer - Take water in, excrete ions (salts) out, and have large amounts of dilute urine
bony fish - Answer - Expel water out, take ions in, and excrete small amounts of urine, but is very
concentrated
Why do women have more urinary tract infections than men? - Answer - Women have a shorter
urethra, which means bacteria doesn't have to travel as far to reach it.
Juxtaglumerular Cells - Answer - modified smooth muscle cells of the afferent arteriole that detect
changes in blood pressure and sodium levels.
Where does the blastophore develope first in deutrosomes? - Answer - Where you go "doo doo" (anus)
Where does the blastophore develop first for proteosomes? - Answer - The mouth
Ectoderm - Answer - Think "attracto-derm", which is what makes people sexually attracted to you
ex: brain, sensory party, epidermis, mammary/sweat glands, enamel, pigment cells, and adrenal medulla
Mesoderm - Answer - Think "means-o derm" or the things you need in order to physically have sex
Questions And Answers
What are the functions of the skin? - Answer - Homeostasis, protection, temperature regulation, stimuli
reception, and vitamin D production
Epidermis - Answer - Made of stratified squamous keratinized epithelium and has no blood vessels
What are the layers of epidermis, from superficial to deep? - Answer - Stratum corneum (corneocytes),
stratum lucidum (dying keratinocytes), stratum granulosum (lamerllar bodies), stratum spinosum
(desmosomes for strenth and langerhans for immunity), and stratum basale (merkel cells, stem cells, and
melanocytes)
Where are melanocytes and merkel cells found? - Answer - Stratum basale
Where are elastin and collagen found? What happens when they break down? - Answer - In the dermis;
wrinkling of skin
Hypodermis - Answer - Contains layers of fat and blood vessels. Also known as the "subcutaneous fat
layer", but is not considered a part of the skin
glomular filtrate - Answer - Contains the same substance as blood plasma, which the exception of larger
proteins like blood
Nephron - Answer - basic functional unit of the kidney. It has four functions: Filtration, excretion,
secretion, and resorption
What is the filtrate path in order? - Answer - Glomerus > Bowman's capsule > proximal tubule > loop of
henle > distal tubule > collecting duct > renal pelvis > ureter
Fenestrations/podocytes - Answer - Help to filter out small substances to the Bowman's capsules, while
the larger things remain in the blood
, Aldosterone - Answer - increases water and salt reabsorption by kidney tubules
antidiuretic hormone (ADH) - Answer - Hormone produced by the neurosecretory cells in the
hypothalamus that stimulates water reabsorption from kidney tubule cells into the blood and
vasoconstriction of arterioles.
Uric acid - Answer - Secretion that is water soluble and less toxic than ammonia and urea. It forms
crystals.
freshwater fish - Answer - Take water in, excrete ions (salts) out, and have large amounts of dilute urine
bony fish - Answer - Expel water out, take ions in, and excrete small amounts of urine, but is very
concentrated
Why do women have more urinary tract infections than men? - Answer - Women have a shorter
urethra, which means bacteria doesn't have to travel as far to reach it.
Juxtaglumerular Cells - Answer - modified smooth muscle cells of the afferent arteriole that detect
changes in blood pressure and sodium levels.
Where does the blastophore develope first in deutrosomes? - Answer - Where you go "doo doo" (anus)
Where does the blastophore develop first for proteosomes? - Answer - The mouth
Ectoderm - Answer - Think "attracto-derm", which is what makes people sexually attracted to you
ex: brain, sensory party, epidermis, mammary/sweat glands, enamel, pigment cells, and adrenal medulla
Mesoderm - Answer - Think "means-o derm" or the things you need in order to physically have sex
