bio lab

Question 1

Distilled Water = Positive or Negative Control

Answer 1

negative

Question 2

Lipids Controls

Answer 2

opague = negative
translucent = positive

Question 3

protein controls

Answer 3

light blue = negative
dark purple = positive

Question 4

starch control

Answer 4

yellow = negative
dark blue = positive

Question 5

glucose control

Answer 5

light blue = negative
orange = positive

Question 6

When testing for sugars, glucose will be put in 80* water bath for 5 minutes.
If glucose is absent, the solution will remain _____
If glucose is present, the colour should change to _______, _______, ________ or ________-

Answer 6

clear blue
opaque green (maltose), yellow, orange
or red (glucose).

Question 7

One structural difference between glucose and starch

Answer 7

Glucose is a monosaccharide, starch is a polysaccharide

Question 8

One structural difference between peptides and proteins-

Answer 8

peptides are short, simple chains of amino acids whereas proteins are large complex 3D Structures

Question 9

one structural difference between saturated fatty acids and unsaturated fatty acids

Answer 9

saturated fatty acids are solid at room temp
unsaturated fatty acids are liquid at room temperate due to the double covalent bonds creating a bend in their hydrocarbon chain

Question 10

what are polypeptides

Answer 10

they’re made up of amino acids

Question 11

what are carbohydrates made up of

Answer 11

sugars and starch

Question 12

what are lipids made up of

Answer 12

triglycerides, phospholipids, or steroids

Question 13

what’re the purpose of controls?

Answer 13

controls are used as a comparison to the test results and they allow
you to determine if a substance (starch, protein, lipids, glucose) is present or absent.

Question 14

what are functions of cuboidal cells in the kidney?

Answer 14

secretion of molecules and absorption of molecules

Question 15

what functions do epithelial tissue carry out in humans?

Answer 15

protection, diffusion, osmosis, absorption and filtration

Question 16

two generic components that make up the extracellular matrix (ECM) of connective tissue (exclude fluids).

Answer 16

ground substance and fibers

Question 17

Name the three fiber types that can be found in the extracellular matrix (ECM) of connective tissue

Answer 17

reticular fibres, collagen fibres and elastic fibres

Question 18

what are the two types of connective tissue that lack fibres

Answer 18

blood and lymph

Question 19

what types and orientations of muscle tissue are found within the frog intestine

Answer 19

circular smooth and longitudinal smooth muscle

Question 20

what is I Olfactory?

Answer 20

Responsible for the sense of smell

Question 21

what is II Optic

Answer 21

Responsible for vision

Question 22

V Trigeminal:

Answer 22

Provides sensation to the face, including touch, pain and temp and also has a motor component for mastication

Question 23

VII Facial:

Answer 23

carries sensory info for taste rom the anterior two-thirds of the tongue
and also has motor functions.

Question 24

VII vestibulochlear

Answer 24

responsible for hearing and balance

Question 25

IX Glossopharyngeal

Answer 25

Provides sensory information from the posterior third of the tongue (including taste), the pharynx, and the carotid body.

Question 26

X Vagus:

Answer 26

Carries sensory information from the throat, thoracic and abdominal viscera, and taste sensations from the epiglottis.

Question 27

What is the function of the choroid?

Answer 27

The blood supply in this layer nourishes the retina and the pigmentation absorbs the light rays and prevents them bouncing around in the eye.

Question 28

Why is the optic disc called the blind spot?

Answer 28

It is called the blind spot because it is the site where the optic nerve exits the eyeball. There are no photoreceptors in this area. If there are no photoreceptors you cant see.

Question 29

When your eye is focused on something in front of your nose:

Answer 29

Suspensory ligaments loosen, the Lens is more convex (bulged in the center), Ciliary muscle contracts

Question 30

3 structures of the outter ear

Answer 30

Pinna, Tympanic Membrane, Auditory Canal

Question 31

3 structures of the inner ear

Answer 31

Oval Window, Round Window, Semicircular Canal

Question 32

Which structure is primarily responsible for dynamic equilibrium?

Answer 32

semicircular canals

Question 33

Which structure is primarily responsible for static equilibrium?

Answer 33

vestibules

Question 34

What nerve is responsible for relaying sound information?

Answer 34

Vestibulocochlear Nerve

Question 35

Which layer of the skin must ink be injected into so that a tattoo is permanent?

Answer 35

the dermis

Question 36

For the Condyloid/Ellipsoidal Joint, what are the Type(s) of Movement Allowed?

Answer 36

● Flexion/Extension ● Abduction/Adduction ● Circumduction