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Sihir Perempuan Penyihir
Ikut Turutan
Universiti
sains

Revision

OCTIVIA INYA
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Masalah tambahan (20/ 20)
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masalah 1

pilihan

In which condition can oxyhaemoglobin easily dissociate?

  • Low pH
  • Low carbon dioxide concentration
  • Low hydrogen ion concentration
  • High concentration content

masalah 2

pilihan

Which factor most significantly increases the breathing rate in mammals?

  • Reduction of oxygen concentration in the blood
  • Increase of carbon dioxide concentration in the blood
  • Reduction of oxygen in the alveolus
  • Increase of carbon dioxide in the alveolus

masalah 3

pilihan

Which process in the erythrocytes is catalyzed by carbonic anhydrase?

  • Formation of haemoglobinic acids
  • Formation of carbonic acid from water and CO2
  • Formation of carbaminohaemoglobin
  • Formation of oxyhaemoglobin

masalah 4

pilihan

What is the definition of the cardiac cycle?

  • The contraction of the atria
  • The sequence of events during one heartbeat
  • The contraction and relaxation of the ventricles
  • The circulation of blood in the heart during one heartbeat

masalah 5

pilihan

Which statement about atrial systole is incorrect?

  • Atrial pressure is higher than ventricular pressure
  • The atria contract
  • Atrioventricular valves open
  • Atrioventricular valves close

masalah 6

pilihan

Where can water not pass via the apoplast pathway in plant roots?

  • Pericycle
  • Vascular tissue
  • Endodermis
  • Cortex

masalah 7

pilihan

What does the P wave in an ECG represent?

  • Ventricular depolarization
  • Atrial depolarization
  • Atrial repolarization
  • Ventricular repolarization

masalah 8

pilihan

Which part of a plant functions as a source during translocation?

  • Meristematic tissue in the shoot
  • Leaves
  • Roots
  • Fruits and flowers

masalah 9

pilihan

What causes the second 'dub' sound in the heart?

  • Closed atrioventricular valves
  • Open atrioventricular valves
  • Closed semilunar valves
  • Open semilunar valves

masalah 10

pilihan

What is an organ called that corrects a deviation from homeostasis?

  • Receptor
  • Control center
  • Effector
  • Sensor

masalah 11

pilihan

Flattened sacs of internal membranes associated with photosynthesis are called:

  • Chloroplasts
  • Stroma
  • Cristae
  • Thylakoids

masalah 12

pilihan

In green plant photosynthesis, the electron donor for the light-dependent reaction is:

  • Carbon dioxide
  • Oxygen
  • RuBP
  • Water

masalah 13

pilihan

Which of these molecules is NOT the product of photosynthesis?

  • Oxygen
  • Carbon dioxide
  • Glucose
  • NADP+

masalah 14

OX

Light-dependent reaction involves both cyclic and non-cyclic photophosphorylation. Is the statement correct?

masalah 15

pilihan

The photosystem channels the excitation energy gathered by the absorption of light to a specific 'reaction center chlorophyll', which in turn passes the energy to:

  • Photosystem I
  • Photosystem II
  • Primary electron acceptor
  • Cytochrome

masalah 16

pilihan

What is the final product of the Calvin cycle?

  • RuBP
  • PGA
  • ATP
  • G3P

masalah 17

pilihan

Which of the following is mismatched?

  • PGA: A three-carbon compound
  • CAM plants: Stomata open during the day and closed at night to avoid photorespiration
  • Chemiosmosis: ATP synthesis is coupled to electron transport
  • C4 plants: Expend ATP to concentrate CO2 in bundle sheath cells to avoid photorespiration

masalah 18

pilihan

Which of the following are the first products in the C3 and C4 pathway respectively?

  • Ribulose-1,5-bisphosphate; malic acid
  • Malate; carbon dioxide
  • 3-phosphoglycerate; oxaloacetate
  • Glyeraldehyde-3-phosphate; phosphoenolpyruvate

masalah 19

jawapan pendek

How many molecules of NADPH and ATP are required to produce one molecule of glucose from six molecules of carbon dioxide via photosynthesis?

  • 12 NADPH and 18 ATP

masalah 20

pilihan

What molecule is produced as a byproduct of the light-dependent reactions of photosynthesis?

  • Water
  • Oxygen
  • Glucose
  • ATP
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