NAS2 Challenge Exam Questions and Answers (With
Correct Solutions) Latest 2023
Purpose of Scientific Method – correct answer \u2705solve a problem or answer a
question
Question, Hypothesis, Experiment, Observe & Record, Analyze, Conclude – correct
answer \u2705steps of scientific method
Independent variable – correct answer \u2705a variable that stands alone and isn’t
changed by the other variables you are trying to measure, change or controlled
example: age
dependent variable – correct answer \u2705a variable dependent on other factors,
tested or measured
example: test score – factors that go into a score you receive on a test
control group – correct answer \u2705does not receive treatment and used to
compare or measure the other subjects<\/p>\n\n\n\n
NAS2 Challenge Exam Questions and Answers (With
Correct Solutions) Latest 2023
experimental group – correct answer \u2705exposed to changes in independent
variable
anatomy – correct answer \u2705branch of science concerned with bodily structure of
living organisms; structure
physiology – correct answer \u2705science dealing with the functions of living things
or their organs
level of organization – correct answer \u2705living things arranged from the simplest
to most complex are:
organelle
cells
tissues
organs
organ systems, organism
populations communities
ecosystem
biosphere<\/p>\n\n\n\n
NAS2 Challenge Exam Questions and Answers (With
Correct Solutions) Latest 2023
requirements for life – correct answer \u2705Cellular organization
Reproduction
Metabolism
Homeostasis
Heredity
Response to stimuli
Growth and development
Adaptation through evolution
survival needs – correct answer \u2705Food, oxygen, water, body temperature,
atmospheric pressure (oxygen\/carbon dioxide exchange)
homeostasis – correct answer \u2705relatively constant internal physical and chemical
conditions that organisms maintain
receptor – correct answer \u2705senses environmental stimulus and sends info to
control center
control center – correct answer \u2705hypothalamus
signals effector<\/p>\n\n\n\n
NAS 2 Challenge Exam TCC (Questions and Answers)
(Solved)
Nucleus – Ans \u2611\ufe0f\u2611\ufe0fbrain of the cell, directs cell activity and contains
chromosomes made of DNA
Endoplasmic Reticulum – Ans \u2611\ufe0f\u2611\ufe0f”intracellular highway”, transports items
around the cell, creates lipids of fat
Lysosome – Ans \u2611\ufe0f\u2611\ufe0fAn organelle containing digestive enzymes
Cytoplasm – Ans \u2611\ufe0f\u2611\ufe0fA jellylike fluid inside the cell in which the organelles
are suspended
golgi apparatus – Ans \u2611\ufe0f\u2611\ufe0fA system of membranes that modifies and
packages proteins for export by the cell
ribosomes – Ans \u2611\ufe0f\u2611\ufe0fsite of protein synthesis
mitochondria – Ans \u2611\ufe0f\u2611\ufe0fPowerhouse of the cell, organelle that is the site of
ATP (energy) production
cell membrane function – Ans \u2611\ufe0f\u2611\ufe0f1) keep toxic substances out of cell
2) has receptors that allow molecules to pass between organelles
3) separate vital\/incompatible metabolic processes in organelles<\/p>\n\n\n\n
NAS 2 Challenge Exam TCC (Questions and Answers)
(Solved)
concentration gradient – Ans \u2611\ufe0f\u2611\ufe0fdifference in the concentration of a
substance from one location to another
simple diffusion – Ans \u2611\ufe0f\u2611\ufe0fhydrogen bonds form between water molecules
and solutes
facilitated diffusion – Ans \u2611\ufe0f\u2611\ufe0fMovement of specific molecules across cell
membranes through protein channels
osmosis – Ans \u2611\ufe0f\u2611\ufe0fDiffusion of water through a selectively permeable
membrane
active transport – Ans \u2611\ufe0f\u2611\ufe0fthe movement of ions or molecules across a cell
membrane into a region of higher concentration, assisted by enzymes and
requiring energy.
endocytosis – Ans \u2611\ufe0f\u2611\ufe0fthe taking in of matter by a living cell by invagination
of its membrane to form a vacuole.
exocytosis – Ans \u2611\ufe0f\u2611\ufe0fa process by which the contents of a cell vacuole are
released to the exterior through fusion of the vacuole membrane with the
cell membrane.
active vs passive transport – Ans \u2611\ufe0f\u2611\ufe0factive transport requires energy and
work, passive transport does not.<\/p>\n\n\n\n
NAS 2 EXAM 2 TCC Questions (Solved) Latest 2023
Anything that has mass and takes up space – correct answer \u2705Matter
Definite shape and volume – correct answer \u2705Solid
A state of matter that has no definite shape but has a definite volume. –
correct answer \u2705liquid
changeable shape and volume – correct answer \u2705Gas
capacity to do work or put matter into motion – correct answer \u2705Energy
energy in action – correct answer \u2705kinetic energy
stored energy – correct answer \u2705potential energy
stored in bonds of chemical substances – correct answer \u2705chemical energy
directly involved in moving matter – correct answer \u2705mechanical energy<\/p>\n\n\n\n
NAS 2 EXAM 2 TCC Questions (Solved) Latest 2023
exhibits wavelike properties (X-rays, visible light) – correct answer \u2705radiant
energy
Cannot be broken down by ordinary chemical means – correct answer
\u2705Elements
detectable with our senses or measurable – correct answer \u2705physical
properties
how atoms interact (bond) with one another – correct answer \u2705chemical
properties
unique building blocks for each element – correct answer \u2705Atoms
consists of neutrons and proton – correct answer \u2705Nucleus
no charge, 1 AMU – correct answer \u2705Nuetrons<\/p>\n","protected":false},"excerpt":{"rendered":"
NAS2 Challenge Exam Questions and Answers (WithCorrect Solutions) Latest 2023Purpose of Scientific Method – correct answer \u2705solve a problem or answer aquestionQuestion, Hypothesis, Experiment, Observe & Record, Analyze, Conclude – correctanswer \u2705steps of scientific methodIndependent variable – correct answer \u2705a variable that stands alone and isn’tchanged by the other variables you are trying to measure, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-117293","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/117293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=117293"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/117293\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=117293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=117293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=117293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}