Question 1

LDL cholesterol is taken into the cell by receptor-mediated endocytosis.

Accepted Answer

A) True 
 B)False

Question 2

Figure 5-3 ​
 
In the accompanying figure, what is the form of cellular junction?

Accepted Answer

A)  Desmosomes 
B)  Gap junctions 
C)  Tight junctions 
D)  Plasmodesmata 
E)  Adhering junctions 
A)  Desmosomes 
B)  Gap junctions 
C)  Tight junctions 
D)  Plasmodesmata 
E)  Adhering junctions

Question 3

Match between columns
                        Premises: signal transduction receptors

Accepted Answer

The Answer of Allow selective transport of ions or molecules is...

Question 4

Groups of eight connexin molecules cluster to form a cylinder that spans the plasma membrane.

Accepted Answer

A) True 
 B)False

Question 5

Plasmodesmata of plant cells are functionally equivalent to the ____ of animal cells.

Accepted Answer

A)  vesicles 
B)  gap junctions 
C)  tight junctions 
D)  anchoring junctions 
E)  cell surface receptors 
A)  vesicles 
B)  gap junctions 
C)  tight junctions 
D)  anchoring junctions 
E)  cell surface receptors

Question 6

The process by which the plasma membrane separates from the cell wall is called ______.

Accepted Answer

A)  hypotonic 
B)  hypertonic 
C)  turgor pressure 
D)  isotonic 
E)  plasmolysis 
A)  hypotonic 
B)  hypertonic 
C)  turgor pressure 
D)  isotonic 
E)  plasmolysis

Question 7

You light a scented candle in the guest bathroom. Within a few minutes, you can smell the candle's scent throughout the hallway. What process is occurring?

Accepted Answer

A)  Dialysis 
B)  Osmosis 
C)  Simple diffusion 
D)  Active transport 
E)  Facilitated diffusion 
A)  Dialysis 
B)  Osmosis 
C)  Simple diffusion 
D)  Active transport 
E)  Facilitated diffusion

Question 8

Plasmolysis occurs in plant cells when the soil or water contains low concentrations of salts or fertilizers.

Accepted Answer

A) True 
 B)False

Question 9

What does an ABC transporter use to move larger ions and molecules across the cell membrane?

Accepted Answer

A)  ATP 
B)  Water 
C)  Porins 
D)  Signals 
E)  Tunnels 
A)  ATP 
B)  Water 
C)  Porins 
D)  Signals 
E)  Tunnels

Question 10

What method does a human white blood cell employ to engulf a bacterial cell?

Accepted Answer

A)  Osmosis 
B)  Exocytosis 
C)  Pinocytosis 
D)  Phagocytosis 
E)  Facilitated diffusion 
A)  Osmosis 
B)  Exocytosis 
C)  Pinocytosis 
D)  Phagocytosis 
E)  Facilitated diffusion

Question 11

What type of molecule can rapidly cross a plasma membrane?

Accepted Answer

A)  Large, polar molecules 
B)  Small, polar molecules 
C)  Large, hydrophilic molecules 
D)  Small, hydrophilic molecules 
E)  Small, hydrophobic molecules 
A)  Large, polar molecules 
B)  Small, polar molecules 
C)  Large, hydrophilic molecules 
D)  Small, hydrophilic molecules 
E)  Small, hydrophobic molecules

Question 12

Match between columns
                        Premises: channels

Accepted Answer

The Answer of Use ATP to transport solutes and Transmit is...

Question 13

What facilitates the rapid transport of water through the plasma membrane?

Accepted Answer

A)  Osmosis 
B)  Uniporters 
C)  Aquaporins 
D)  Channel proteins 
E)  ABC transporters 
A)  Osmosis 
B)  Uniporters 
C)  Aquaporins 
D)  Channel proteins 
E)  ABC transporters

Exam 5: Biological Membranes

LDL cholesterol is taken into the cell by receptor-mediated endocytosis.

Figure 5-3 ​ In the accompanying figure, what is the form of cellular junction?

Groups of eight connexin molecules cluster to form a cylinder that spans the plasma membrane.

Plasmodesmata of plant cells are functionally equivalent to the ____ of animal cells.

The process by which the plasma membrane separates from the cell wall is called ______.

You light a scented candle in the guest bathroom. Within a few minutes, you can smell the candle's scent throughout the hallway. What process is occurring?

Plasmolysis occurs in plant cells when the soil or water contains low concentrations of salts or fertilizers.

What does an ABC transporter use to move larger ions and molecules across the cell membrane?

What method does a human white blood cell employ to engulf a bacterial cell?

What type of molecule can rapidly cross a plasma membrane?

What facilitates the rapid transport of water through the plasma membrane?

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

DNA: The Carrier of Genetic Information

Gene Expression

Gene Regulation

DNA Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

Figure 5-3 In the accompanying figure, what is the form of cellular junction?