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WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 21, Problem 4MC
Summary Introduction
Introduction:
The cells of a multicellular organism are not in direct contact with the external environment, hence cellular processes are not straightforward and simple.
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Students have asked these similar questions
which of the following statements are true about homeostasis? Select all that apply.
a. The selective permeability of the cell membrane allows for thermoregulation.
b. Homeostasis is an organism‘s way of maintaining constant and balanced internal processes.
c. Ectotherms rely on environmental heat to maintain homeostasis.
d. Homeostasis works by a system of positive feedback.
Match the following cellular features and activities with the properties of cells.
Cell structure is highly complex and organized structurally.
Cell posseses genetic information.
Cells engage in metabolism.
Cells sense and respond to changes in the environment.
A.
Mistakes in the genetic material are called mutation.
B.
Protein receptors on cell membranes receive specific ligands that "communicate" the presence of a simulus or stimuli.
C.
Cells contain "blueprints" for constructing cellular structures, for rrunning cellular activities and for making more of themselves.
D.
All living systems are capable of doing "work" in whatever form.
E.
Cell…
Functions of human body cells include
a. movement.
b. covering.
c. storage.
d. communication.
e. All of the choices are correct.
Chapter 21 Solutions
WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following statements about cellular membranes is/are FALSE? A. Only lipids move Within the membrane, while the proteins are anchored and immobile. B. Membranes are composed of lipids and proteins. C. Substances may be transported across membranes by active transport, facilitated transport or diffusion. D. Membrane proteins are classified as integral or peripheral, upon their functionarrow_forwardTo which of the following does the “tissue level” of structural organisation refer? A. atoms, ions, molecules and electrolytes B. mitochondria, ribosomes, nucleus,endoplasmic reticulum C. nephron, alveolus, villus, lobule D. muscle, nervous, connective, epithelialarrow_forwardTo which of the following does the "tissue level" of structural organisation refer? A. atoms, ions, molecules and electrolytes B. mitochondria, ribosomes, nucleus, endoplasmic reticulum C. nephron, alveolus, villus, lobule D. muscle, nervous, connective, epithelialarrow_forward
- Below are three statements - two of which are truths and one is a lie. Which of the following statements is a lie? a. Rough ER and smooth ER mainly function for protein synthesis. b. There are two types of secretory activities of a cell. c. A cell that makes steroid hormones has a high concentration of smooth endoplasmic reticulum.arrow_forwardIn which of the following is cell modification mostly involved? a. absorption b. locomotion c. nutrition d. secretionarrow_forwardExtracellular fluid in the human body is composed of (select all that apply) a. Lymph B. Interstitial fluid C. Blood plasma D. Cytoplasm E. Cerebrospinal fluidarrow_forward
- What type of cell is long fibers with striations and many nuclei which can be controlled voluntarily or involuntarily? a.skeletal muscle cells b.red blood cells c.stratified squamous epithelial cells d.nerve cells e.all of the cell typesarrow_forwardWhich of the following is the smallest living structural unit of the body? A. atom B. molecule C. organelle D cellarrow_forwardWhich type of membrane lines systems that are open to the outsideenvironment, such as the respiratory system? a. serous c. mucousb. synoval d. meningealarrow_forward
- Hypertrophy, hyperplasia and increases in extracellular material are forms of A. growth B. reproduction C. development D. metabolism E. movement F. cellular composition G. responsiveness H. organizationarrow_forwardWhich of the following statements describes the function of plasma membranes? I. define the boundaries of the cell and its organelles and act as permeability barriers II. sites for specific biological and chemical functions III. possess transport proteins that regulate the movement of substances into and out of the cell and its organelles IV. contain protein molecules that act as receptors to detect external signals V. provide mechanisms for cell-to-cell contact, adhesion, and communication A. I and III B. I, III, IV C. I, III, IV, V D. I, II, III, IV, Varrow_forwardRegulating transport of substances in and out of the cell is the a. cell membrane. b. nuclear membrane. c. cytoplasm. d. nucleus.arrow_forward
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What is Homeostasis? | Physiology | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=quQr6X1Q58I;License: CC-BY