BIOD 151 Module 1 Exam Review Answer Key (Portage
learning)UPDATED 2022
Anatomy - ANSWER: Structure of an organism
Physiology - ANSWER: How structures function together
Levels of organization - ANSWER: Atoms, molecule, organelle, cell, tissue, organ,
system of organs, organism
Tissue - ANSWER: Group of cells that perform common function
4 basic types of tissue - ANSWER: Epithelial, muscle, connective, nervous
Epithelial tissue - ANSWER: Covers body surface and lines cavities of body
Structure and characteristics of epithelial tissue - ANSWER: -Closely packed cells with
little layer outside
-Can be found as 1 of many layers
-Always shedding and under constant cell division to replace dead cells
Task of epithelial tissue - ANSWER: Secretion and absorption
Muscle tissue - ANSWER: Enables movement
Task of muscle tissue - ANSWER: Muscle contraction
Nervous tissue - ANSWER: Communicates signals between brain and rest of body;
forms electrical impulses that communicate rapidly
Integumentary system - ANSWER: Consists of the skin, mucous membranes, hair, and
nail
3 layers of skin - ANSWER: epidermis, dermis, hypodermis (subcutaneous layer)
hypodermis is composed of? - ANSWER: Mostly fat that helps anchor dermis to layer
of fat cells (adipose tissue)
Adipocytes - ANSWER: Fat cells that help insulate and regulate body temperature
What does the integumentary system do? - ANSWER: -Protects underlying tissue
from injury, protects against water loss
-Contains pain and pressure receptors
-Helps in temperature regulation
-Produces vitamin D
, Skeletal system - ANSWER: -Framework for muscular system and supports body
organs
-Houses blood cells and stores minerals
Muscular system - ANSWER: Allows for body movement
What does the muscular system do? - ANSWER: -Muscles attach to bones to bring
movement to skeletal system
-Contraction and relaxation of muscles
3 types of muscle fibers - ANSWER: Cardiac, smooth, skeletal
Cardiac muscle fiber - ANSWER: Heart
Skeletal muscle fiber - ANSWER: Throughout body
Smooth muscle fiber - ANSWER: Inside digestive tract
Nervous system - ANSWER: Provides internal communication among cells that use
electrical impulses to communicate and respond to internal and external
environment
Digestive system - ANSWER: Breaks down food into smaller molecules and absorbs
nutrients into body
Endocrine system - ANSWER: Made of up glands that produce hormones which
regulate reproductive system and metabolism
Metabolism - ANSWER: All chemical reactions that take place for body to function
Catabolism - ANSWER: Breakdown of substances into simpler building blocks
Anabolism - ANSWER: Synthesizing of more complex structures from simpler ones
Cardiovascular system - ANSWER: -Made of blood vessels that move blood, oxygen,
and nutrients throughout body
-Moves carbon dioxide waste from cells to lungs
Lymphatic system - ANSWER: Responsible for immunity and fighting diseases
Lymphatic system is a part of what other system? - ANSWER: Circulatory system
Respiratory system - ANSWER: Responsible for supplying blood with oxygen and
excretion of carbon dioxide (CO2)
learning)UPDATED 2022
Anatomy - ANSWER: Structure of an organism
Physiology - ANSWER: How structures function together
Levels of organization - ANSWER: Atoms, molecule, organelle, cell, tissue, organ,
system of organs, organism
Tissue - ANSWER: Group of cells that perform common function
4 basic types of tissue - ANSWER: Epithelial, muscle, connective, nervous
Epithelial tissue - ANSWER: Covers body surface and lines cavities of body
Structure and characteristics of epithelial tissue - ANSWER: -Closely packed cells with
little layer outside
-Can be found as 1 of many layers
-Always shedding and under constant cell division to replace dead cells
Task of epithelial tissue - ANSWER: Secretion and absorption
Muscle tissue - ANSWER: Enables movement
Task of muscle tissue - ANSWER: Muscle contraction
Nervous tissue - ANSWER: Communicates signals between brain and rest of body;
forms electrical impulses that communicate rapidly
Integumentary system - ANSWER: Consists of the skin, mucous membranes, hair, and
nail
3 layers of skin - ANSWER: epidermis, dermis, hypodermis (subcutaneous layer)
hypodermis is composed of? - ANSWER: Mostly fat that helps anchor dermis to layer
of fat cells (adipose tissue)
Adipocytes - ANSWER: Fat cells that help insulate and regulate body temperature
What does the integumentary system do? - ANSWER: -Protects underlying tissue
from injury, protects against water loss
-Contains pain and pressure receptors
-Helps in temperature regulation
-Produces vitamin D
, Skeletal system - ANSWER: -Framework for muscular system and supports body
organs
-Houses blood cells and stores minerals
Muscular system - ANSWER: Allows for body movement
What does the muscular system do? - ANSWER: -Muscles attach to bones to bring
movement to skeletal system
-Contraction and relaxation of muscles
3 types of muscle fibers - ANSWER: Cardiac, smooth, skeletal
Cardiac muscle fiber - ANSWER: Heart
Skeletal muscle fiber - ANSWER: Throughout body
Smooth muscle fiber - ANSWER: Inside digestive tract
Nervous system - ANSWER: Provides internal communication among cells that use
electrical impulses to communicate and respond to internal and external
environment
Digestive system - ANSWER: Breaks down food into smaller molecules and absorbs
nutrients into body
Endocrine system - ANSWER: Made of up glands that produce hormones which
regulate reproductive system and metabolism
Metabolism - ANSWER: All chemical reactions that take place for body to function
Catabolism - ANSWER: Breakdown of substances into simpler building blocks
Anabolism - ANSWER: Synthesizing of more complex structures from simpler ones
Cardiovascular system - ANSWER: -Made of blood vessels that move blood, oxygen,
and nutrients throughout body
-Moves carbon dioxide waste from cells to lungs
Lymphatic system - ANSWER: Responsible for immunity and fighting diseases
Lymphatic system is a part of what other system? - ANSWER: Circulatory system
Respiratory system - ANSWER: Responsible for supplying blood with oxygen and
excretion of carbon dioxide (CO2)
