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Sihir Perempuan Penyihir
Ikut Turutan
Universiti
Sains
chap 10 1.0
NUR 'AFIQAH BI
50
Masalah tambahan (20/ 20)
Allow incorrect answer
Sembunyikan jawapan
public kuiz

# 1

pilihan

short day plant will flower when there is a

  • low level of Pfr
  • high level of Pfr
  • medium level of Pfr
  • no Pfr

# 2

pilihan

high level of Pfr in long day plant will make the plant

  • not flowering
  • die
  • flowering
  • live longer

# 3

pilihan

similarities between steroid and non-steroid hormone [can choose more than one]

  • both act on specific target cell
  • both bind to specific receptor
  • both produce cAMP
  • both form hormone-receptor complex

# 4

pilihan

role of myelin sheath

  • block impulse transmission
  • slow down the rate of impulse transmission
  • speed up the rate of impulse transmission
  • add more impulse

# 5

jawapan pendek

protein involve in photoperiodism

  • phytochrome

# 6

pilihan

factor that made impulse unidirectional

  • photo period
  • refractory period
  • all or none event
  • speed of conduction

# 7

pilihan

what does a high level of Pfr in long day plant do

  • doesn't stimulate dopamine to prevent flowering
  • doesn't stimulate florigen to prevent flowering
  • stimulate dopamine to induce flowering
  • stimulate florigen to induce flowering

# 8

pilihan

type of hormone in animal [can choose more than one]

  • steroid and water soluble
  • water soluble and non-steroid
  • lipid soluble and steroid
  • lipid soluble and non-steroid

# 9

pilihan

mechanism of hormone action for steroid hormone

  • gene activation
  • second messenger
  • first messenger
  • gene inactivation

# 10

pilihan

roles of ATP in muscle contraction [can choose more than one]

  • energizing power stroke
  • use in glycolysis
  • pump calcium ion into sarcoplasmic recticulum
  • detach myosin head from myosin binding site

# 11

jawapan pendek

theory of muscle contraction

  • sliding filament theory

# 12

pilihan

role of sarcoplasmic reticulum

  • produce and release calcium ion
  • store and release calcium ion
  • produce and store calcium ion
  • release calcium ion

# 13

pilihan

when do myosin head bind to myosin binding site

  • when in its high-energy configuration and myosin binding sites are exposed
  • when in its high-energy configuration
  • myosin binding sites are exposed
  • when in its low-energy configuration

# 14

pilihan

myosin head has

  • transferase
  • isomerase
  • ATPase
  • oxidoreductase

# 15

pilihan

what did the myosin head form when it binds to the myosin binding site

  • circle bridges
  • cross bridges
  • plus bridges
  • triangle bridges

# 16

pilihan

thin filament consists of [can choose more than one]

  • troponin
  • troponin complex
  • tropomyosin
  • actin

# 17

pilihan

when muscle contract

  • H zone decrease in length
  • M line and A band decrease in length
  • H zone and I band decrease in length
  • I band decrease in length

# 18

jawapan pendek

what is the name of region in sarcomere that has thin filament only

  • I band

# 19

pilihan

neurotransmitter involve in muscle contraction

  • norepinephrine
  • dopamine
  • cocaine
  • acetycholine

# 20

jawapan pendek

name of the location where neuron and muscle meet

  • neuromuscular junction

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