Biology 1-6 discrete

Question 1

Lactase

Answer 1

brush-border enzyme that starts in oral cavity

Question 2

Bile created by… and stored in…

Answer 2

created by the liver and stored in the gallbladder

Question 3

pepsin is in the …

Answer 3

stomach

Question 4

trypsin is in the …

Answer 4

pancreas

Question 5

Causes a right shift in the oxyhemoglobin curve (5)

Answer 5

exercise increased PaCO2, H+, temperature Decreased pH

Question 6

Hardy Weinberg equilibrium

Answer 6

relative frequency of dominant allele + relative frequency of recessive allele = 1

Question 7

Aldosterone (4)

Answer 7

increase sodium reabsorption increase potassium excretion increase blood pressure decrease water excretion

Question 8

more than one dominant allele exists for a given gene

Answer 8

Codominance

Question 9

occurs when a heterozygote expresses a phenotype the tis intermediate b/t the two homozygous genotypes

Answer 9

Incomplete dominance

Question 10

a population measure of the proportion of individuals int eh population carrying the allele who actually express the phenotype (the probability that, given a particular genotype) a person will express the phenotype

Answer 10

penetrance

Question 11

explains the variability in phenotype for one genotype

Answer 11

expressivity

Question 12

seminiferous tubules

Answer 12

sperm production

Question 13

cells of leydig

Answer 13

testosterone production

Question 14

sperm holding tank

Answer 14

epididymis

Question 15

these nourish sperm

Answer 15

Sertoli cells

Question 16

Inside cell low (6)

Answer 16

Na+, Ca²⁺, Mg²⁺, Cl-, HCO₃^-, Albumin

Question 17

inside cell high (3)

Answer 17

K+, PO₄^3-, organic anions, proteins

Question 18

Outside cell low (4)

Answer 18

K+, PO₄^3-, organic anions, proteins

Question 19

Outside cell high (6)

Answer 19

Na+, Ca2+, Mg2+, Cl-, HCO3-, Albumin (in plasma only)

Question 20

Inside cell low is the same thing as

Answer 20

outside cell high

Question 21

In a virus, the nucleic acid can be…

Answer 21

either DNA or RNA and either single- or double-stranded

Question 22

Golgi apparatus consists of and it’s functions

Answer 22

It consists of a stack of membrane-enclosed sacs; modifies and distributes proteins

Question 23

In the cell, protein synthesis occurs in

Answer 23

ribosomes and rough ER

Question 24

Lipid and carbohydrate breakdown takes place in

Answer 24

peroxisomes and cytoplasm

Question 25

in a cell, structure for ATP production

Answer 25

mitochondria

Question 26

Mitochondrial DNA is (3 things)

Answer 26

circular, self-replicating, double-stranded

Question 27

Smooth ER functions (3 things)

Answer 27

lipid synthesis, poison detoxificaiton, protein transport

Question 28

main function of the nucleolus

Answer 28

Ribosomal RNA synthesis

Question 29

Organelle surrounded by a single membrane? lysosome mitochondria nuclei ribosome

Answer 29

lysosome

Question 30

Which of the following does not contain tubulin? centriole micorfilaments cilia flagella

Answer 30

microfilaments

Question 31

During an outbreak, HSV is in its... cycle whereas when it's dormant, it's in it's...

Answer 31

outbreak = lytic cycle dormant = lysogenic cycle

Question 32

sexual mating in bacteria

Answer 32

conjugation

Question 33

when fragments of the bacterial chromosome accidentally become packaged into viral progeny produced during a viral infection and htus can be introduced into another bacterium by the viral vector

Answer 33

transduction

Question 34

bacterial cells reproduce by...

Answer 34

binary fission

Question 35

prions

Answer 35

infectious proteins that cause misfolding of other proteins

Question 36

primarily, prions cause...

Answer 36

a shift toward β-pleated sheet confirmations which leads to decreased solubility and degradability of proteins