YOU DID IT!! FIRST TEST IS DOWN!

Imagine a calcium ion that has just entered a root tip. Before it can enter the vascular cylinder to be transported up to a growing leaf above ground, the ion must pass (i.e. either go through directly or go behind/around) __________.

You drive a nail into the trunk of a young tree that is 3 meters tall. The nail is about 1.5 meters from the ground. Fifteen years later, you return and discover that the tree has grown to a height of 30 meters. About how many meters above the ground is the nail?

Examine the eudicot root tip below, with 4 parts/tissue layers labeled. Use this figure to answer the following 2 questions.

A fibrous root system ___________________.

Which of the following statements about the Casparian strip is/are true?

1B – Name one structural or functional similarity, and one structural or functional difference between the cell types in the pairing you chose above. (1 sentence limit for similarity, 1 sentence limit for difference)

1B – Select which pairing you’ll be discussing:

Question 3C Explain – why is a carrot not very capable of the function you named first in question 3B, compared to other roots? (limit 1-2 sentences)

Use the labeled cross section of a leaf shown below to answer the following two questions.