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:

Biological Perspective

An approach in psychology that examines psychological issues through the lens of biological processes, including genetics and brain functions.

Social Psychologists

Scientists who study how people's thoughts, feelings, and behaviors are influenced by the actual, imagined, or implied presence of others.

Learning Theorists

Scholars who study and explain how people acquire knowledge, skills, habits, and attitudes, often focusing on the processes of conditioning and cognitive development.

Cognitive Researchers

Scientists who study the mental processes involved in perception, memory, thought, and problem solving.