نقل و حمل

Written by Dr. Hira Salman (Biology)

نویں جماعت · حیاتیات · 10 سوالات

نام: ____________________ تاریخ: ____________

In plants, water is carried upwards by the:
- A Phloem
- B Xylem
- C Epidermis
- D Cambium
The loss of water vapour from leaves is called:
- A Transpiration
- B Respiration
- C Absorption
- D Translocation
Which blood vessels carry blood away from the heart?
- A Capillaries
- B Arteries
- C Veins
- D Lymph vessels
How many chambers does the human heart have?
- A Four
- B Three
- C Five
- D Two
Which blood cells carry oxygen?
- A White blood cells
- B Plasma cells
- C Platelets
- D Red blood cells
Blood clotting depends on:
- A Red blood cells
- B Lymph
- C Platelets
- D Haemoglobin
The pigment in red blood cells is:
- A Chlorophyll
- B Haemoglobin
- C Melanin
- D Keratin
Blood is pumped to the lungs by the:
- A Aorta
- B Left atrium
- C Right ventricle
- D Left ventricle
The largest artery in the body is the:
- A Carotid artery
- B Pulmonary vein
- C Vena cava
- D Aorta
Root hairs absorb water by:
- A Photosynthesis
- B Digestion
- C Respiration
- D Osmosis

جوابی کلید

1. B, 2. A, 3. B, 4. A, 5. D, 6. C, 7. B, 8. C, 9. D, 10. D

Xylem carries water and minerals from roots to leaves.
Transpiration is evaporation of water from leaf surfaces, mostly through stomata.
Arteries carry blood away from the heart.
Two atria and two ventricles make four chambers.
Red blood cells contain haemoglobin that binds oxygen.
Platelets help form a clot at a wound.
It carries oxygen.
The right ventricle sends blood to the lungs.
The aorta carries blood from the left ventricle.
Water moves into root cells down a water potential gradient.