Debbie Is Interested in Working on Projects That Will Help

question 3

Multiple Choice

Debbie is interested in working on projects that will help fight childhood obesity.She is offered a job in a laboratory where researchers are studying the effects of leptin on weight control.Is the job relevant to Debbie's interest?

• A)No,leptin is only relevant to animal weight control.
• B)No,leptin is a neurotransmitter that is associated with memory.
• C)Yes,leptin is a hormone that is involved in blood-sugar regulation.
• D)Yes,leptin is a hormone that is linked to human weight loss.

---

Definitions:

Root Cap

A covering of cells over the root tip that protects the delicate meristematic tissue directly behind it.

Root Tip

The extreme end of a root in a plant, involved in growth and absorption of water and nutrients from the soil.

Tracheids

Long, thin cells found in the xylem of nearly all vascular plants that function in water transport and support.

Vessel Elements

Components of the xylem tissue in plants, which transport water and nutrients from the roots to other parts of the plant.