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Preguntas del test (29)
1Monosaccharides are derivatives of [blank_start]aldehyde[blank_end] or [blank_start]ketone[blank_end]. They contain at least [blank_start]3[blank_end] carbon atoms. They're classified according to their [blank_start]carbonyl group[blank_end] and number of [blank_start]carbon[blank_end] atoms.
- Aaldehyde
- Bketone
- C3
- Dcarbonyl group
- Ecarbon
2Use of a Ficher Projection is encouraged outside of CHO use.
- AVerdadero
- BFalso
3A molecule is chiral if it can't be [blank_start]superimposed[blank_end] on top of its mirror image by [blank_start]rotation[blank_end] or [blank_start]translation[blank_end].
- Asuperimposed
- Brotation
- Ctranslation
4How many stereoisomers does D-glucose have?
- A8
- B12
- C16
- D18
5An epimer is a sugar which differs by 1 carbon atom
- AVerdadero
- BFalso
6What sugars are part of the aldehyde group?
- AGlucose
- BFructose
- CGalactose
- DMannose
- EDihydroxyacetone
- FGlyceraldehyde
- GRibulose
- HRibose
7What is a hemiacetal?
- AWhen a ketone reacts with an alcohol
- BA five membered sugar ring
- CA seven membered sugar ring
- DWhen an aldehyde reacts with an alcohol
8An implicit atom is when an atom is given a number instead of a letter on a model.
- AVerdadero
- BFalso
9A five membered sugar ring is a [blank_start]furanose[blank_end] and a six membered sugar ring is a [blank_start]pyranose[blank_end].
- Apyranose
- Bfuranose
10When a monosaccharide cyclizes, the anomeric carbon becomes a [blank_start]chiral centre[blank_end]. This gives two isomers of the same molecule known as [blank_start]anomers[blank_end].
- Achiral centre
- BOH group
- Cepimer
- Depimers
- Eanomers
- Fhemiketals
- Gisotopes
11What are the correct values of beta and alpha anomers at equilibrium of D-glucose?
- A24% beta
- B36% alpha
- C76% alpha
- D55% beta
- E45% alpha
- F64% beta
12Deoxy sugars are monosaccharides where an [blank_start]OH[blank_end] group is replaced by a [blank_start]H[blank_end] atom. Amino sugars are monosaccharides where an [blank_start]OH[blank_end] group is replaced by an [blank_start]amino acid[blank_end] group.
- AOH
- BH
- COH
- Damino acid
13Check all that are true about glycosidic bonds.
- AJoin monosaccharides together to form disaccharides and polysaccharides
- BHydrolyse very slowly
- CHydrolyse rapidly
- DSystems with glycosidic bonds can freely convert between alpha and beta forms.
- EForm when an anomeric group of a sugar condenses with an amine group to form alpha and beta glycosides
14Reducing sugars are sugars that have anomeric carbons that haven't formed glycosides.
- AVerdadero
- BFalso
15What two sugars make up lactose?
- AFructose
- BGlucose
- CMaltose
- DSucrose
- EGalactose
16Hydrolysis involves water being removed from a structure.
- AVerdadero
- BFalso
17In glycoproteins, sugar content varies between [blank_start]1-90%[blank_end] by weight.
- A1-90%
18What are the characteristics of the glycoprotein mucin?
- AAct as a sensory receptor in the airways
- BHigh water-holding capacity
- CResistant to proteolysis
- DProvide an attachment site for cell signalling
- EContain enzymes to help with the breakdown of substances
19What is the role of glycolipids
- ATo breakdown and secrete sugars into the bloodstream to maintain blood sugar levels
- BTo help with the transport of substances across one membrane to another
- CTo provide energy and serve as markers for cell recognition
- DTo cushion and protect the walls of larger cells and organs
20Where are glycolipids found?
- AIn the muscle
- BIn the liver
- COn the exoplasmic surface of the cell membrane
- DIn adipose tissue
21What are the levels of glycolysis, Pcr and ATP distributed at during the start of intermittent exercise (eg Sprint 1)?
- A6.3% Pcr, 44.1% glycolysis, 49.6% ATP
- B49.6% glycolysis, 44.1% Pcr, 6.3% ATP
- C44.1% glycolysis, 49.6% Pcr, 6.3% ATP
22What is the biggest limiting factor during the recovery after intermittent exercise?
- ABlood supply/ plasma volume
- BEPOC (Oxygen debt)
- CEnzymes
- DStroke volume
- EGlycogen and Pcr stores
23During [blank_start]maximal[blank_end] effort exercise, Pcr is broken down. It is rebuilt [blank_start]post-exercise[blank_end]. The drop in Pcr relates to the peak [blank_start]lactate[blank_end].
- Apost-exercise
- Bmaximal
- Clactate
24A sprint trained athlete has a higher power output but a steeper drop off rate than an untrained athlete.
- AVerdadero
- BFalso
25What does a buffering system consist of?
- ANitrates
- BBicarbonates
- CPhosphate
- DEnzymes
- ESugars
- FProteins
26Adaptations to training include an increased [blank_start]mean[blank_end] and [blank_start]peak[blank_end] power, increased contribution from the system [blank_start]glycolysis[blank_end], increased [blank_start]PFK[blank_end] activity in type 2 fibres, reduced plasma [blank_start]NH3[blank_end] (ammonia content) and increased [blank_start]EPOC[blank_end] (oxygen debt).
- Amean
- Bpeak
- Cglycolysis
- DPFK
- ENH3
- FEPOC
27Hypoglycemia is the increase in blood glucose levels.
- AVerdadero
- BFalso
28Impaired glucose tolerance shows '[blank_start]borderline[blank_end]' abnormal plasma glucose levels following the [blank_start]oral glucose tolerance[blank_end] test. Impaired fasting glucose shows [blank_start]above[blank_end] normal plasma glucose levels following the [blank_start]fasting plasma glucose[blank_end] test. Both are not high enough for [blank_start]diabetic[blank_end] diagnosis.
- Aborderline
- Boral glucose tolerance
- Cabove
- Dfasting plasma glucose
- Ediabetic
29Which category of hyperglycemia is insulin dependent?
- AGestational diabetes mellitus
- BType 1 diabetes mellitus
- CType 2 diabetes mellitus
- DExocrine pancreatic disorders
- EEndocrinopathies
Información
- Descripción
- Test sobre Sin título, creado por Megan J el 02/11/2021.
- Autor
- Megan J
- Idioma
- English
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