bio201 study set 1

In thermoregulation, which of the following are effectors? [mark all correct answers] a. cutaneous blood vessels b. hypothalamus c. skeletal muscles d. sweat glands e. cutaneous smooth muscles

a. cutaneous blood vessels c. skeletal muscles d. sweat glands e. cutaneous smooth muscles

The hormone insulin [mark all correct answers] a. decreases blood glucose b. increases blood glucose c. is released from the liver d. is released from the pancreas

a. decreases blood glucose c. is released from the liver d. is released from the pancreas

Salivary glands are classified as ________ glands because they secrete substances through ducts onto a surface.

exocrine

Atoms are the basic unit of life. True False

f

Homeostasis is the maintenance of a stable external environment. True False

f

The dermis contains a lot of adipose and helps insulate the body. t or f

f

Tissues are groups of organs that work together to perform a function. t or f

f

Glucagon is a polysaccharide found in the liver. True False

false

Hypertonic means that the solution surrounding the cell has lower solutes that the cell itself. True False

false

Which of the following does NOT characterize epithelial tissue?

has a large blood supply to individual cells

Nervous tissue contains electrical conduction cells called neurons and support cells called glia . The support cells far outnumber the electrical conductors.

neurons glia

The glycocalyx (select all that apply) Group of answer choicesprotects the cellis composed of nucleic acidsprovides a source of energy to the cellis composed of carbohydratesaids in cellular adhesion PreviousNext

protects the cell is composed of nucleic acids is composed of carbohydrates

A tissue that is a single layer of flat cells would be best suited for

rapid diffusion of nutrients

The plasma membrane is ____________, as it only allows certain substances to pass through the plasma membrane.

selectively permeable

smooth muscles are attached to bones and provide for movement of the body. They are characterized as [ Select ] ["involuntary", "unconscious", "conscious", "voluntary"] and [ Select ] ["non-striated", "striated"] .

skeletal voluntary striated

Multiple layers of tall, thin epithelial cells are

stratified columnar cells

The two major proteins found in the ground substance of connective tissue are collagen and elastin. True False

t

A group of cells working together to perform a function is a a. cell b. organ c. organism d. organ system e. tissue

tissue

*Oxygen and carbon dioxide move across a cell membrane by the process of facilitated diffusion.

F

Connective tissues are tightly packed cells with little ECM. True False

F

Simple squamous epithelial cells are best suited for absorption and secretion. True False

F

Which of the following makes up the majority of the cell membrane?

Phospholipids

The extracellular matrix can be rubber-like, fluid-like, or stone-like in appearance.

True

Intercellular junctions include a. adhesion junctions b. desmosomes c. electrical synapses d. gap junctions e. tight junctions

a. adhesion junctions b. desmosomes c. electrical synapses d. gap junctions e. tight junctions

Which of the following are types of muscle? [mark all correct answers] a. cardiac b. cutaneous c. skeletal d. smooth e. vascular

a. cardiac c. skeletal d. smooth

Which of the following are tissues of the body? a. connective b. cutaneous c. epithelial d. muscle e. nervous

a. connective c. epithelial d. muscle e. nervous

Which of the following are functions of adipose tissue? [mark all correct answers] a. cushioning b. energy storage c. heat retention d. movement e. thermoregulation

a. cushioning b. energy storage c. heat retention e. thermoregulation

A gland that secretes chemical messengers into the blood is a/an

endocrine gland

This type of protein helps in chemical reactions

Enzymes

Which of the following is required for simple diffusion to occur?

ATP

This is a protein used for moving things in and out of a cell Cell adhesion Channel or pore protein Enzyme

Channel or pore protein

The sodium-potassium pump moves 3 ____ out of the cell and 2 ____ into the cell.

SODIUM AND POTASSIUM

One type of MEMBRANE found in the human body is synovial. What is one function of this membrane and where would you find it in the body?

Synovial membranes secrete synovial fluid that lubricates joints and they are found in the movable joints like elbows, knees etc.

Epithelial cells are named for the shape of the cells. True False

T

Which of the following helps protect the body from pathogen entry? [mark all correct answers] a. dendritic cells in the stratum spinosum b. keratinocyte mitosis in the stratum basale c. melanin d. the glycolipid layer in the stratum granulosum e. the lack of nutrients in the stratum corneum f. secretions of the merocrine glands g. sebum h. vasomotion

a. dendritic cells in the stratum spinosum d. the glycolipid layer in the stratum granulosum e. the lack of nutrients in the stratum corneum f. secretions of the merocrine glands g. sebum

Which of the following can be used to describe the ground substance of connective tissues? [mark all correct answers] a. fluid b. hard c. rubbery d. stony

a. fluid b. hard c. rubbery d. stony

Which of the following is a supportive cell in the nervous system? a. glia b. glue c. nervous d. neuron e. smooth

a. glia

Which of the following helps protect the body?

a. guard hairs b. sebum c. lactic acid

Where would one expect to find smooth muscle? [mark all correct answers] a. in blood vessels b. in the brain c. in the heart d. in the legs e. in the stomach

a. in blood vessels e. in the stomach

Which of the following are membranes of the body? [mark all correct answers] a. abdominal b. cutaneous c. mucous d. serous e. synovial

b. cutaneous c. mucous d. serous e. synovial

Which of the following process is occuring in the stratum granulosum? [mark all correct answers] a. mitosis of keratinocytes b. exocytosis of glycolipids c. dendritic cells monitoring pathogen invasion d. degradation of cellular organelles e. melanin production

b. exocytosis of glycolipids d. degradation of cellular organelles

Which of the following are exocrine glands? [mark all correct answers] a. adrenal glands b. gastric glands c. lacrimal glands d. mammary glands e. sweat glands

b. gastric glands c. lacrimal glands d. mammary glands e. sweat glands

Which of the following are exocrine glands? [mark all correct answers] a. adrenal glands b. gastric glands c. lacrimal glands d. mammary glands e. sweat glands

b.. communicating junctions c. electrical synapse

Which of the following is NOT a characteristic of life? a.breathes b. made from cells c. maintains homeostasis d. uses energy e. uses oxygen

breathes uses oxygen

Which membrane lines body cavities and covers internal organs? a. cutaneous b. mucous c. serous d. synovial

c. serous

cardiac muscles are found in the heart and pump blood through arteries and veins. They are characterized as [ Select ] ["non-striated", "striated"] and

cardiac striated involuntary

Put the items in the correct order. tissue cell organ system organ organism

cell tissue organ organ system organism

Blood is classified as ____________ tissue nervous

connective

Which of the following is NOT a function of an epithelium?

contraction

The glands that secrete via a duct are a. cyotgenic glands b. ductule glands c. endocrine glands d. exocrine glands

d. exocrine glands

Which of the following cell types produce collagen and elastin? a. adipocytes b. chondroblasts c. chondrocytes d. fibroblasts e. macrophages

d. fibroblasts

A type of cell connection whose function is to prevent cells from coming apart is

desmosome

*In general, lipid molecules diffuse

directly through the lipid bilayer