نقل و حمل

In plants, water is carried upwards by the:

• 1 Phloem
• 2 Xylem
• 3 Epidermis
• 4 Cambium

The loss of water vapour from leaves is called:

• 1 Transpiration
• 2 Respiration
• 3 Absorption
• 4 Translocation

Which blood vessels carry blood away from the heart?

• 1 Capillaries
• 2 Arteries
• 3 Veins
• 4 Lymph vessels

How many chambers does the human heart have?

• 1 Four
• 2 Three
• 3 Five
• 4 Two

Which blood cells carry oxygen?

• 1 White blood cells
• 2 Plasma cells
• 3 Platelets
• 4 Red blood cells

Blood clotting depends on:

• 1 Red blood cells
• 2 Lymph
• 3 Platelets
• 4 Haemoglobin

The pigment in red blood cells is:

• 1 Chlorophyll
• 2 Haemoglobin
• 3 Melanin
• 4 Keratin

Blood is pumped to the lungs by the:

• 1 Aorta
• 2 Left atrium
• 3 Right ventricle
• 4 Left ventricle

The largest artery in the body is the:

• 1 Carotid artery
• 2 Pulmonary vein
• 3 Vena cava
• 4 Aorta

Root hairs absorb water by:

• 1 Photosynthesis
• 2 Digestion
• 3 Respiration
• 4 Osmosis