definitions about fucking everything

Question 1

Actin & myosin

Answer 1

proteins responisible for the muscle contraction

Question 2

Active transport

Answer 2

Energy-requiring translocation of a substance across a membrane against its electrochemical gradient

Question 3

Agonist

Answer 3

A substance that have the same effect on a receptor as the mediator or transmitter

Question 4

Albumin

Answer 4

Largest protein fraction in the blood plasma, mainly responsible for the colloid osmotic pressure of the plasma

Question 5

Aldo-sugar

Answer 5

sugar containing an aldehyde group (glucose,galatose)

Question 6

all-or-none-responce

Answer 6

Amplitude of action potential induced in excitable cells does not depend on the strength of the stimulus only on the membrane prperties and on the ionic gradients

Question 7

Alpha carbon atom

Answer 7

in organic acids the C-atom closest tot the carboxyl group

Question 8

Alpha-helix

Answer 8

helical secondary structure of proteins stabilized by H-bonds between peptide bonds located above each other

Question 9

Aveoli

Answer 9

Functional units of the lung, gases are exchanged through the walls of the aveoli

Question 10

Anisotropic substance

Answer 10

Differentially transparent to polarizing ligth depending on the plane of the ligth

Question 11

Annulus fibrous

Answer 11

Sheet of connective tissue separating the atria from ventricles and providing anchoring points for the valves

Question 12

Antagonist

Answer 12

a substance that inhibits the effect of a mediator or transmitter at the receptor

Question 13

Antibody

Answer 13

large y-shaped protein molecule produced by the lymohocytes that can specifically bind to antigens

Question 14

antigen

Answer 14

usally large molecule or a smaller part of it that induces immunological responce in the target organsim

Question 15

Apnea

Answer 15

A suspension or absence of breathing

Question 16

Arteriole

Answer 16

Muscular vessel connecting arteries and capillaries