You a Given a Plant Tissue in Lab and Asked

question 17

Multiple Choice

You a given a plant tissue in lab and asked to determine if the tissue is a source or a sink.Microscopic analysis reveals an abundance of colorless parenchyma cells with plastids.Only one biochemical test reacts positively with your sample.In the presence of iodine,the plastids turn a dark purplish color.Based on this information you determine your sample is

• A)a source because your sample is rich in carbohydrates.
• B)a source because your sample contains plastids.
• C)a sink because your sample is rich in carbohydrates.
• D)both a source and sink because it contains both plastids and carbohydrates.

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Definitions:

Depreciation Expense

The allocated portion of the total cost of a company's physical assets that is expensed out on the income statement over a set period, reflecting the asset's consumption and wear and tear.

Fixed Costs

Costs that do not change with the level of production or sales, including expenses like rent, salaries, and insurance.

Variable Cost

Expenses that change in proportion with production output or sales, such as materials and labor.

Fixed Costs

Costs that remain constant regardless of the amount of goods produced or sold, like lease payments, wages, and coverage fees.