Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 2.4, Problem 1CS
Core Skill: Connections Look ahead to Figure 54.14. The plant life shown growing in part (b) of that figure is sparse because the soil is very acidic. If the pH of the soil were 5.0, what would the H+ concentration be?
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Chemistry of Water
103
nclusion
Under normal conditions root hair cells are relatively low in water
molecules and high in other kinds of molecules (cell salts and nutrients).
Draw arrows to show water movement between the soil water, the root
hair cell, and the water transporting tube.
Water
Transporting
Tube
Salts
and
Nutrients
Root
Hair
Cell
Water
Molecules
ROOT
ROOT HAIR CELL
ESTION
1. What would happen to the water movement if you put salt or a lot of
fertilizer in the soil?
2. Explain how the properties of water investigated in Exercises #1 and
# 4 assist a plant in the movement of water from the soil, into the root
hair, and throughout the structure of the plant.
v Question Completion Status:
QUESTION 17
What is the ultimate source of energy that allows water to get to the top of very tall trees?
OA. The sun
OB. Glucose
OC The Greenhouse Effect
OD.A bacon double cheeseburger
QUESTION 18
What characteristic does water have that allows it to be pulled to the top of trees with a very large negative pressure (i.e, tension)?
OA A high tensile strength
OB. Pure water is tasteless
OC Gravity will make water flow downhill
OD. It is clear
QUESTION 19
The light reactions of photosynthesis occur in which part of the chloroplast?
O A. Stomates
O B. Stroma
OC. Mitochondria
O D. Thylakoid membranes
EXPERIMENT : GRAVIMETRIC ANALYSIS OF PHOSPHORUS IN PLANT FOOD
I want at lest 10 Precautions for this experiment
Chapter 2 Solutions
Biology
Ch. 2.1 - Before the experiment conducted by Ernest...Ch. 2.1 - What was the hypothesis tested by Rutherford?Ch. 2.1 - Prob. 3EQCh. 2.1 - Explain the difference between an electron shell...Ch. 2.2 - Core Skill: Modeling The goal of this modeling...Ch. 2.2 - Prob. 1CCCh. 2.3 - When oil dissolves in a soapy solution, where is...Ch. 2.4 - Core Skill: Connections Look ahead to Figure...Ch. 2 - _______________ make(s) up the nucleus of an atom....Ch. 2 - Prob. 2TY
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- MAKE CONNECTIONS Note three ways the propertiesof water contribute to soil formation. See Concept 3.2.arrow_forwardEXPERIMENT : GRAVIMETRIC ANALYSIS OF PHOSPHORUS IN PLANT FOOD Aim: To determine the amount of phosphorus in a commercial plant food Objectives:.......... I want Objectives for this experimentarrow_forwardQUESTION 7 Which of the following applies to soil horizons? O They are organized in layers called A, B, C, and R They differ in chemical, physical, and biological properties and depth O They differ only in physical and biological, but not in chemical properties O The soil texture ôf the different horizons gets finer with depth O The soil texture of the different horizons gets coarser with depth QUESTION 8 Blue light receptors trigger the following: Chloroplast orientation to optimize light absorption Direct roots to grow away from blue light O Plants responding to phototropins O Plants grow towards a light source O All of the abovearrow_forward
- Instruction: Interpret the data given in the table below. Explain your answer. (Flooding of transplanted wetland rice for weed control) Water Regime Number of weed seedlings per 50 cm x 50 cm Drained 10 Flooded 3arrow_forwardAccording to the water potential values shown in the image, which ones are wrong and why? W air (22 °C, 50% HR) -100 MPa Cas V sheet -0.2 MPa W stem -0.01 MPa to -0.1 MPa W soil -1 MPa to -0.51 MPa -4 MPa W root -0.1 MPa toarrow_forwardSome seeds (tomato, for example) had been germinated and the seedling grew for 2 weeks in soil, where the soil water potential was maintained at -0.2 bars. The plants were then divided into 5 groups and each group subjected to a different soil water potential as follows: Group 1: 0 bars Group 2: -0.03 bars Group 3: -0.2 bars Group 4: -3.0 bars Group 5: -5.0 bars At the end of three weeks at these various soil water potentials, the plants that would have made the least growth would be expected in which group? Question 11 options: Group 3 Group 1 Group 2 Group 4 Group 5arrow_forward
- 43. Two soil samples, A & B, at same soil moisture levels are placed in contact with each other. Water will more likely move from soil B to soil A if their osmotic potentials, expressed in kPa, are: O A=-30; B=-70 O A=-10; B=+10 O A=-60; B=-10 O A=-50; B=-100 OA=-20%; B=-20arrow_forwardLearning Task 1: Study the pictures below. abiotic components shown. Describe the functions of each identified abiotic components.Write your answers in a separate sheet of paper. Mention at least 2 biotic and 2 PICTURES COMPONENTS BIOTIC FUNCTIONS ΑΒΙΟΤIC FUNCTIONS PLANTS MAKE THEIR FOOD.arrow_forwardYou place a flaccid plant cell (Ψ = -0.7 MPa) into an environment (beaker) of sucrose solution (Ψ = -0.9 MPa). Compare the initial conditions of the flaccid cell and the environment (beaker of sucrose solution) in terms of: A) Water potential (high or low) of the environment B) Solute concentration (high or low) of the environment C) Tonicity (hypertonic, hypotonic, or isotonic) of the environment D) Water potential (high or low) of the cell E) Solute concentration (high or low) of the cell F) Tonicity (hypertonic, hypotonic, or isotonic) of the cell G) Predict the direction of water movement (into the cell, out of the cell, or no net movement) H) Predict the change in turgor pressor of the cell (increase turgor pressure or decrease turgor pressure) I) Predict the fate of the cell (plasmolyzed, turgid, or lysed)arrow_forward
- Q-12. Complete the table:- Things directly related to Soil Things indirectly related to Soilarrow_forwardRESULTS Please give the time-absorbance values tab? Draw graph-growth curve in Excel? Find the equation of slope line? Calculate the generation time? Choose the values in log phase Abs 0.005 25 0.003 50 0.023 75 0.026 100 0.029 125 0.035 150 0.1 175 0.26 200 0.32 225 0.375 250 0.42 275 0.46 300 0.475 325 0.489 350 0.506 375 0.515 400 0.521 425 0.526 450 0.532 475 0.522 500 0.515 525 0.514 550 0.506 575 0.489 600 0.465 625 0.42 650 0.38 675 0.36 700 0,345 725 0.333 BACTERIAL GRO WTH CURVEarrow_forwardPurpose: To determine the effect of varying fertilizer brands upon the growth rate of a vinca plant. What are the independent and dependent variables in this experiment?arrow_forward
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