Which of These Situations Regarding Phloem Sources and Sinks Is

question 6

Multiple Choice

Which of these situations regarding phloem sources and sinks is not correct?

• A)The root of a carrot plant is a source.
• B)Young leaves are sinks.
• C)A growing pumpkin is a sink.
• D)In a seedling, the cotyledons would be sources.

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Definitions:

Rotor

A component of disc brake systems, a flat, circular plate that the brake pads clamp onto to slow or stop the vehicle.

Reciprocating Pistons

Components in an engine that move up and down within cylinders to convert fuel into mechanical energy.

Valves

Mechanical devices in an engine that open and close to allow the intake of fuel/air mixture and the exhaust of combustion gases.

Camshaft Open

The period when the camshaft lifts the valve off its seat, allowing for air/fuel mixture intake or exhaust gas expulsion.