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Overview of Plant Structure and Transport

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Overview of Plant Structure and Transport

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Questions and Answers

What is the main purpose of the vascular system in plants?

To store excess energy for later use

To provide support and anchorage to the plant

To transport water, mineral nutrients, and photosynthetic products throughout the plant body (correct)

To produce seeds for reproduction

What is the function of the middle lamella in plant cells?

Producing energy for cellular processes

Facilitating cell growth and enlargement

Preventing cell migrations by cementing walled cells together (correct)

Absorbing water and mineral nutrients

What distinguishes secondary cell walls from primary cell walls in plants?

Secondary cell walls do not contain a middle lamella

Secondary cell walls are primarily involved in photosynthesis

Secondary cell walls are characteristic of young, growing cells

Secondary cell walls are thicker and stronger than primary walls (correct)

Which organ of a plant is primarily responsible for photosynthesis?

Leaf Signup and view all the answers

What are the functions of plant roots?

Anchorage and absorption of water and mineral nutrients Signup and view all the answers

What distinguishes gymnosperms from angiosperms?

Gymnosperms are less dominant compared to angiosperms Signup and view all the answers

What gives secondary cell walls their strength and toughness?

Lignin Signup and view all the answers

Where are the most active meristems located in a young plant?

At the tips of the stem and the root Signup and view all the answers

What is the phase of plant development that gives rise to new organs and the basic plant form called?

Primary growth Signup and view all the answers

Which of the following is NOT one of the three major tissue systems recognized in plants?

Nuclear Signup and view all the answers

What gives rise to secondary xylem (wood) and secondary phloem?

Vascular cambium Signup and view all the answers

What organelle contains the genetic information primarily responsible for regulating the metabolism, growth, and differentiation of the cell?

Nucleus Signup and view all the answers

What is the double membrane surrounding the nucleus called?

Nuclear envelope Signup and view all the answers

Which organelles contain their own DNA but import most of their proteins from the cytosol?

Chloroplasts and mitochondria Signup and view all the answers

What material allows the cell to take up and retain certain substances while excluding others?

Phospholipids Signup and view all the answers

Which part of a plant gives rise to branch shoots containing apical meristems?

Axillary buds Signup and view all the answers