BIOL BI441 – The source of the nitrogen waste

11 Jun BIOL BI441 – The source of the nitrogen waste

Question
1)

The source of the nitrogen waste produced in vertebrate systems is primarily

metaboism

protein metaboism

cellular respiration

lipid metabolism

2)

Urea is produced

only in humans

in the liver

in the kidney

as a byproduct of metabolism

3)

The filtrate in the proximal convoluting tubule consists of

Water, salts, and larger proteins

Water, salts, urea, and some red blood cells

Water, salts, urine

Water, salts, glucose, urea, and amino acids

4)

Which organism is most likely to display uricotelism?

pigmy chimpanzee

lamprey

salamander

boa constrictor

5)

Which animal is likely to have the longest Loop of Henle in their nephron?

catfish

desert fox

eagle

salamander

6)

In humans, what factor ultimately determines the gender of an embryo?

Hormones produced by developing gonads

the absence of the tail of the Y-chromosome compared to the X-chromosome

d. The presence or absence of a second X chromosome that suppresses the SRY gene

b. The presence or absence of the SRY gene on the Y-chromosome that produces a transcription factor

7)

What is the role of the Wolffian duct in female mammals?

not a darn thing

it is analagous to the clitoris

it develops into the fallopian tubes

it develops into the ovaries

8)

What is the role of the bulbourethral gland in male mammals?

stores sperm

provides sugar for energy to semen

adds mucous to semen for moisture

adds alkaline mucus to semen to coutneract any acidic urine still in ureter