Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.

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Chapter 3, Problem 7A

Summary Introduction

Introduction:

Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.

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In order to establish the expiration date of perishable food, growth curve data must be collected. Once the microbial load is so high that it poses a hazard to human health, the food item is no longer considered safe (expired). Generally a load of x50,000 bacteria/gram is considered unsafe. Your task is to determine the microbial growth curves for MicroYo, a new brand of yogurt. The growth is determined by sampling the yogurt and growing the bacterial isolates in broth culture which is then serially diluted by a total of x10,000 and inoculated onto standard petri plates of nutrient agar. The following colony counts are measured: Time (days) MicroYo colony count# 1 1 4 1 12 2 16 20 4 7 What day should you recommend expiring the yogurt (the last possible date before the microbial load is unsafe). 12 4 20 16

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Question

Chapter 3, Problem 7A

Summary Introduction

Introduction:

Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.

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Answer 3

Question

Chapter 3, Problem 7A

Summary Introduction

Introduction:

Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.

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Answer 4

Question

Chapter 3, Problem 7A

Summary Introduction

Introduction:

Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.

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Answer 5

Chapter 3, Problem 7A

Summary Introduction

Introduction:

Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.

Answer 6

Chapter 3, Problem 7A

Summary Introduction

Introduction:

Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.

Answer 7

Chapter 3, Problem 7A

Summary Introduction

Introduction:

Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.

Answer 8

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Answer 11

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Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.

Concept explainers

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Introduction:

Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.

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Chapter 3 Solutions

Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.

Concept explainers

Videos

Introduction: Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.

Want to see the full answer?

Chapter 3 Solutions

Introduction:

Osmosis is the movement that is determined by the concentration of solutes separated by a semi-permeable membrane. The direction, by which water diffuses, is determined by a solution’s tonicity outside the cell and into it.