At the sink, food is actively removed from…….
a) tracheids
b) companion cells
c) mesophyll cells
d) sieve tubes
When the turgor pressure increases in sieve tubes, the water moves from sieve tubes by
a) diffusion
b) osmosis
c) active transport
d) phagocytosis
When the turgor pressure in sieve tubes falls down, the mass flows from source to……
a) sink
b) source
c) root
d) stem
Transport In Human Beings:
Like other
organisms, human beings need a transport system to deliver …….
a) oxygen
b) nutrients
c) waste products
d) all of these
The transport system of human beings includes……..
a) blood
b) heart
c) blood vessels
d) all of these
