Whether Person O finds the carved initials higher relative to ground level after ten years. Concept introduction: The young plant grows primarily by lengthening, and older plant grows by lengthening and thickening. The primary growth originates at the terminal bud, which consists of the apical meristem. The cell division that occurs in the apical meristem pushes the dividing cells toward the base of the shoot, and they will differentiate. The lateral meristem runs length wise through the stems and roots, and they give rise to woody secondary growth.

Question

Plant roots develop differently from plant shoots during primary growth. Explain: How is the formation of lateral roots different from making new branches on shoots? Why don't roots and shoots generate new primary growth the same way?

Answer 1

Question

Chapter 27, Problem 1CT

Summary Introduction

To explain: Whether Person O finds the carved initials higher relative to ground level after ten years.

Concept introduction: The young plant grows primarily by lengthening, and older plant grows by lengthening and thickening. The primary growth originates at the terminal bud, which consists of the apical meristem. The cell division that occurs in the apical meristem pushes the dividing cells toward the base of the shoot, and they will differentiate. The lateral meristem runs length wise through the stems and roots, and they give rise to woody secondary growth.

Summary Introduction

To explain: The kinds of growth rings Person O sees when he chops down the tree.

Concept introduction: The young plant grows primarily by lengthening, and older plant grows by lengthening and thickening. The primary growth originates at the terminal bud, which consists of the apical meristem. The cell division that occurs in the apical meristem pushes the dividing cells toward the base of the shoot, and they will differentiate. The lateral meristem runs length wise through the stems and roots, and they give rise to woody secondary growth.

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Plant roots develop differently from plant shoots during primary growth. Explain: How is the formation of lateral roots different from making new branches on shoots? Why don't roots and shoots generate new primary growth the same way?

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two leaves A and B, each having the petiole in a closed test tube full of water. Each is hung on a spring balance. Leaf A has a waxy cuticle on the upper epidermis and stomata on the lower epidermis. Leaf B a waxy cuticle on the upper epidermis and a lower epidermis covered with petroleum jelly. Both leaves were cut from the same plant. i)Explain why it is important for the leaves to be cut from the same plant. (ii) List TWO variabes that must be kept constant in this investigation. iii) Table 6 shows the results obtained in the experiment: leaf and test tube weight final weight change in weight A 40.7 39.9 0.8 B 38.7 38.7 0.0 Explain why the weight of set up A, decreased. iv) Using your biological knowledge, indicate how results will change, if a fan is switched on near the experimental set up. Explain your answer.