Question 1

What is the function of gap junctions in cells? ​

Accepted Answer

A) Anchor the cells to basal lamina. 
B) Hold the cell wall close to the plasma membrane. 
C) Allow ions and small molecules to flow freely between cells of a given tissue type. 
D) Serve as a scaffold for active transport proteins to cluster together. 
E) Anchor the cells to neighboring cells. 
A) Anchor the cells to basal lamina. 
B) Hold the cell wall close to the plasma membrane. 
C) Allow ions and small molecules to flow freely between cells of a given tissue type. 
D) Serve as a scaffold for active transport proteins to cluster together. 
E) Anchor the cells to neighboring cells.

Question 2

Two or more different tissues arranged to carry out a specific function is called a(n)____. ​

Accepted Answer

A) organ system 
B) organ 
C) tissue 
D) organism 
E) tissue system 
A) organ system 
B) organ 
C) tissue 
D) organism 
E) tissue system

Question 3

Maintenance of the body's internal environment at relatively constant levels is called ____.

Accepted Answer

A) feedback 
B) homeostasis 
C) physiology 
D) natural selection 
E) feedforward 
A) feedback 
B) homeostasis 
C) physiology 
D) natural selection 
E) feedforward

Question 4

Which tissue has contractile cells that are joined by intercalated disks, allowing it to contract as a unit? ​

Accepted Answer

A) smooth muscle 
B) cartilage 
C) skeletal muscle 
D) cardiac muscle 
E) adipose tissue 
A) smooth muscle 
B) cartilage 
C) skeletal muscle 
D) cardiac muscle 
E) adipose tissue

Question 5

Which scenario is an example of positive feedback? ​

Accepted Answer

A) When oxygen levels are low, the kidneys secrete erythropoietin, which stimulates the proliferation and differentiation of red blood cells until oxygen demands are met. 
B) As blood pressure increases, specialized neurons relay the change to the brainstem, which in turn, decreases the contractility of the heart and leads to vasodilation, thereby decreasing blood pressure. 
C) After an injury, chemicals released at the site of injury will activate platelets, which will in turn activate additional platelets, and so on, until the clot has formed and the injury is no longer bleeding. 
D) When stress levels are high, the hypothalamus secretes corticotropin-releasing hormone (CRH), which in turn stimulates the secretion of adrenocorticotropic hormone (ACTH), which then triggers the release of cortisol. Increased cortisol levels then inhibit the release of CRH and ACTH. 
E) After eating, when glucose levels are high, insulin levels increase, leading to an increase in glycogen and fat synthesis to remove excess glucose from circulation. 
A) When oxygen levels are low, the kidneys secrete erythropoietin, which stimulates the proliferation and differentiation of red blood cells until oxygen demands are met. 
B) As blood pressure increases, specialized neurons relay the change to the brainstem, which in turn, decreases the contractility of the heart and leads to vasodilation, thereby decreasing blood pressure. 
C) After an injury, chemicals released at the site of injury will activate platelets, which will in turn activate additional platelets, and so on, until the clot has formed and the injury is no longer bleeding. 
D) When stress levels are high, the hypothalamus secretes corticotropin-releasing hormone (CRH), which in turn stimulates the secretion of adrenocorticotropic hormone (ACTH), which then triggers the release of cortisol. Increased cortisol levels then inhibit the release of CRH and ACTH. 
E) After eating, when glucose levels are high, insulin levels increase, leading to an increase in glycogen and fat synthesis to remove excess glucose from circulation.

Question 6

Which organ system includes the spleen, lymph nodes, and thymus? ​

Accepted Answer

A) circulatory system 
B) endocrine system 
C) nervous system 
D) digestive system 
E) lymphatic system 
A) circulatory system 
B) endocrine system 
C) nervous system 
D) digestive system 
E) lymphatic system

Question 7

Which human cell type can be over a meter in length? ​

Accepted Answer

A) neurons 
B) chondrocytes 
C) columnar epithelial cells 
D) skeletal muscle cells 
E) adipocytes 
A) neurons 
B) chondrocytes 
C) columnar epithelial cells 
D) skeletal muscle cells 
E) adipocytes

Question 8

Blood plasma is separated from cells by interstitial fluid . ​

Accepted Answer

A) True 
 B)False

Question 9

The presence of cilia is a common feature of some ____ tissues. ​

Accepted Answer

A) nervous 
B) muscle 
C) connective 
D) epithelial 
E) adipose 
A) nervous 
B) muscle 
C) connective 
D) epithelial 
E) adipose

Question 10

Which tissue is best described as a sparse distribution of cells surrounded by an open network of collagen and elastin fibers?

Accepted Answer

A) fibrous connective tissue 
B) adipose tissue 
C) bone tissue 
D) loose connective tissue 
E) blood 
A) fibrous connective tissue 
B) adipose tissue 
C) bone tissue 
D) loose connective tissue 
E) blood

Question 11

Which molecule is the most abundant in the extracellular matrix of connective tissues? ​

Accepted Answer

A) collagen 
B) cholesterol 
C) fibronectin 
D) albumin 
E) elastin 
A) collagen 
B) cholesterol 
C) fibronectin 
D) albumin 
E) elastin

Question 12

A response to change in the internal/external environment that intensifies the change is called ____ feedback.

Accepted Answer

A) positive 
B) physiological 
C) reflex 
D) negative 
E) anatomical 
A) positive 
B) physiological 
C) reflex 
D) negative 
E) anatomical

Question 13

Match between columns
                        Premises: cell body

Accepted Answer

The Answer of  D and  A and  is...

Question 14

Which cell type is specialized for fat storage? ​

Accepted Answer

A) osteoclast 
B) leukocyte 
C) adipocyte 
D) osteon 
E) chondrocyte 
A) osteoclast 
B) leukocyte 
C) adipocyte 
D) osteon 
E) chondrocyte

Question 15

Which connective tissue is best at withstanding compression due the elasticity of its matrix? ​

Accepted Answer

A) loose connective tissue 
B) bone tissue 
C) cartilage 
D) fibrous connective tissue 
E) dense connective tissue 
A) loose connective tissue 
B) bone tissue 
C) cartilage 
D) fibrous connective tissue 
E) dense connective tissue

Question 16

A tissue sample containing fibroblasts surrounded by parallel bundles of collagen and elastin fibers is an example of ____. ​

Accepted Answer

A) bone tissue 
B) dense connective tissue 
C) cartilage 
D) blood 
E) adipose tissue 
A) bone tissue 
B) dense connective tissue 
C) cartilage 
D) blood 
E) adipose tissue

Question 17

The birth process in mammals is an example of positive feedback .

Accepted Answer

A) True 
 B)False

Question 18

Tight junctions between muscle cells help muscle tissue function as a unit.

Accepted Answer

A) True 
 B)False

Question 19

Which part(s)of a neuron that conduct(s)an electrical signal towards an adjacent neuron? ​

Accepted Answer

A) dendrites 
B) cell body 
C) axon 
D) both dendrites and the axon 
E) dendrites, cell body, and the axon 
A) dendrites 
B) cell body 
C) axon 
D) both dendrites and the axon 
E) dendrites, cell body, and the axon

Question 20

Match between columns
                        Premises: axon terminals

Accepted Answer

The Answer of  E and  A and  is...

Exam 38: Introduction to Animal Organization and Physiology

What is the function of gap junctions in cells? ​

Two or more different tissues arranged to carry out a specific function is called a(n)____. ​

Maintenance of the body's internal environment at relatively constant levels is called ____.

Which tissue has contractile cells that are joined by intercalated disks, allowing it to contract as a unit? ​

Which scenario is an example of positive feedback? ​

Which organ system includes the spleen, lymph nodes, and thymus? ​

Which human cell type can be over a meter in length? ​

Blood plasma is separated from cells by interstitial fluid . ​

The presence of cilia is a common feature of some ____ tissues. ​

Which tissue is best described as a sparse distribution of cells surrounded by an open network of collagen and elastin fibers?

Which molecule is the most abundant in the extracellular matrix of connective tissues? ​

A response to change in the internal/external environment that intensifies the change is called ____ feedback.

Which cell type is specialized for fat storage? ​

Which connective tissue is best at withstanding compression due the elasticity of its matrix? ​

A tissue sample containing fibroblasts surrounded by parallel bundles of collagen and elastin fibers is an example of ____. ​

The birth process in mammals is an example of positive feedback .

Tight junctions between muscle cells help muscle tissue function as a unit.

Which part(s)of a neuron that conduct(s)an electrical signal towards an adjacent neuron? ​

Introduction to Biological Concepts and Research

Life, Chemistry, and Water

Biological Molecules: the Carbon Compounds of Life

Cells

Membranes and Transport

Energy, Enzymes, and Biological Reactions

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

Cell Division and Mitosis

Meiosis: the Cellular Basis of Sexual Reproduction

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

DNA Structure, Replication, and Organization

From DNA to Protein

Regulation of Gene Expression

Bacterial and Viral Genetics

Dna Technologies: Making and Using Genetically Altered Organisms, and Other Applications

Genomes and Proteomes

The Development of Evolutionary Thought

Microevolution: Genetic Changes Within Populations

Speciation

Paleobiology and Macroevolution

Systematic Biology: Phylogeny and Classification

The Origin of Life

Prokaryotes and Viruses

Protists

Seedless Plants

Seed Plants

Fungi

Animal Phylogeny, Acoelomates, and Protostomes

Deuterostomes: Vertebrates and Their Closest Relatives

The Plant Body

Transport in Plants

Plant Nutrition

Reproduction and Development in Flowering Plants

Plant Signals and Responses to the Environment

Information Flow and the Neuron

Nervous Systems

Sensory Systems

The Endocrine System

Muscles, Bones, and Body Movements

The Circulatory System

Defenses Against Disease

Gas Exchange: the Respiratory System

Animal Nutrition

Regulating the Internal Environment

Animal Reproduction

Animal Development

Ecology and the Biosphere

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Biodiversity and Conservation Biology

Animal Behavior

Filters

What is the function of gap junctions in cells?

Two or more different tissues arranged to carry out a specific function is called a(n)____.

Which tissue has contractile cells that are joined by intercalated disks, allowing it to contract as a unit?

Which scenario is an example of positive feedback?

Which organ system includes the spleen, lymph nodes, and thymus?

Which human cell type can be over a meter in length?

Blood plasma is separated from cells by interstitial fluid .

The presence of cilia is a common feature of some ____ tissues.

Which molecule is the most abundant in the extracellular matrix of connective tissues?

Which cell type is specialized for fat storage?

Which connective tissue is best at withstanding compression due the elasticity of its matrix?

A tissue sample containing fibroblasts surrounded by parallel bundles of collagen and elastin fibers is an example of ____.

Which part(s)of a neuron that conduct(s)an electrical signal towards an adjacent neuron?