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Exam 1 Review Flashcards | StudBud
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Exam 1 Review
Exam 1 Review
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1
Breaks down food into absorbable units that enter the blood for distribution to body cells.
Respiratory System
Digestive System
Cardiovascular System
Muscular System
2
What are the 3 components of the homeostatic control system?
Receptor, control Center, effector
negative/positive feedback and receptor
None of these
receptor, effector and nucleus
3
Which best describes an IONIC BOND?
chemical bond between atoms formed by the transfer of one or more electrons
Attraction between a hydrogen atom with a (+) charge and an (-) charge
Sharing of pairs of electrons.May be polar or nonpolar.
None of these
4
Which of the following solutions represents this image?
None
Hypertonic solution
Isotonic solution
Hypotonic solution
5
Most homeostatic control mechanisms are negative feedback mechanisms.
False
True
6
Tight Junctions bind adjacent cells together.
False
True
7
which of the following are examples of Endocytosis?
Pinocytosis
All of these
Receptor-mediated
Phagocytosis
8
Which best describes HYDROGEN BONDS?
Sharing of pairs of electrons.May be polar or nonpolar
None of these
chemical bond between atoms formed by the transfer of one or more electrons
Attraction between a hydrogen atom with a (+) charge and an (-) charge
9
In active transport substances can move from low to high concentration
True
False
10
At a pH of 1 a solution is considered NEUTRAL?
False
True
11
..... are protein carrier specific for one chemical; binding of solute causes transport protein to change shape
Channnel mediated facilitated diffusion
Carrier-mediated facilitated diffusion
Simple diffusion
Osmosis
12
Glands secrete hormones that regulate processes such as growth, reproduction, and nutrient use (metabolism)by body cells
Nervous system
Endocrine system
Muscular system
Respiratory system
13
Blood vessels transport blood, which carries oxygen, carbon dioxide, nutrients, wastes, etc.
Endocrine system
Skeletal System
Nervous system
Cardiovascular system
14
Keeps blood constantly supplied withoxygen and removes carbon dioxide.
Skeletal System
Endocrine system
Urinary system
Respiratory system
15
Which of the following solutions represents this image?
None of these
Hypotonic solution
Hypertonic solution
Isotonic solution
16
Which best describes a COVALENT BOND?
Sharing of pairs of electrons.May be polar or nonpolar
None of these
chemical bond between atoms formed by the transfer of one or more electrons
Attraction between a hydrogen atom with a (+) charge and an (-) charge
17
Which of the following is the communicating junction?
None
gap junctions
Tight junctions
Desmosomes
18
Which describes a mixture?
no chemical bonding occurs
All of these
its components can be separated by physical mean
are homogeneous or heterogeneous
19
Houses white blood cells (lymphocytes) involved in immunity.
Lymphatic system
Skeletal System
Urinary system
Endocrine system
20
Examples of Positive Feedback are......
Regulate Blood sugar
Regulate Body temperature
Contractions and Blood clotting
Regulate heart rate
21
a channel protein; mostly ions selected on basis of size and charge
Channnel mediated facilitated diffusion
Osmosis
Simple diffusion
Carrier-mediated facilitated diffusion
22
Forms the external body covering, and protects deeper tissues from injury. Synthesizes vitamin D.
Nervous System
Integumentary System
Digestive system
Endocrine system
23
All of these are examples of Negative Feedback EXCEPT?
Contractions
Regulate heart rate
Regulate Body temperature
Regulate Blood sugar
24
The following are forms of a mixture except.....
Suspension
Solution
Colloid
Compound
25
Anatomy studies the STRUCTURE and Physiology concerns the FUNCTION.
False
True
26
Bases take up hydrogen ions (H+)
False
True
27
Vesicular transport processes that eject substances from the cell interior into the extracellular fluid is exocytosis
True
False
28
Substances move from high to low concentration
Kinetic Energy
Active transport
Passive transport
Potential energy
29
Which of the following solutions represents this image?
Isotonic solution
Hypotonic solution
None
Hypertonic solution
30
Which of the following are functions of the Plasma Membrane?
Both red and yellow
Communication and cell recognition
Only as a physical barrier
Physical barrier and selective permeability
31
These 4 elements form 96% of body weight...carbon, oxygen, hydrogen, and nitrogen
False
True
32
Which of the following are examples of Passive transport?
osmosis
Facilitated diffusion
All of these
Simple diffusion
33
Choose the correct SURVIVAL NEEDS?
Only oxygen
Nutrients, Oxygen, Water, Normal Body Temp., appropriate atmospheric press.
Oxygen, nutrients and body temp. ONLY
None of these
34
What is another name for acids?
Neutron donors
Proton acceptors
It is only named acids.
Proton donors
35
Isotopes of an element have the same number of protons and electrons but they differ in the number of neutrons.
True
False
36
Which of the following best describes Pinocytosis.
The cell gulps a drop of extracellular fluid containing solutes
None
Extracellular substances bind to specific receptor proteins
the cell engulfs some relatively large or solid material.
37
All of the following are cell junctions EXCEPT?
Desmosomes
Gap Junctions
Transfer junctions
Tight Junctions
38
Bases are also called Proton Donors?
True
False
39
Which of the following are factors that influence the rate of chemical reactions?
only catalysts
Only temperature and particle size
Temperature, concentration, particle size, catalysts
None of these
40
Which one is the correct level of STRUCTURAL ORGANIZATION?
Atoms-Molecules-Organelle-Cell-Tissue-Organ system-Organ
molecule -atoms-Organelle-tissue-cell-Organ-Organ system
organ system-Molecules-Organelle-Cell-Tissue-Organ-Atoms
Atoms-Molecules-Organelle-Cell-Tissue-Organ-Organ system
41
Which of the following are main parts of the human cell?
The plasma membrane
All of these
The nucleus
The cytoplasm
42
All of the following are part of the Cell Theory EXCEPT??
All organisms are made of one or more cells.
The cell is the smallest unit of life.
Cells only arise from other cells
Cells do not die
43
Eliminates nitrogenous wastes from the Body. Regulates water, electrolyte, and acid-base balance of the blood.
Respiratory system
Urinary system
Muscular system
Skeletal System
44
Atoms are identical particles or building blocks.
False
True
45
An acid is a substance that releases hydrogen ions (H +)
True
False
46
passive transport does not require added energy.
False
True
47
Active transport requires added energy
True
False
48
Is the fast-acting control system of the body, it responds to internal and external changes.
Muscular system
Nervous system
Respiratory system
Endocrine system
49
Protects and supports body organs, and provides a framework the muscles use to cause movement.
Skeletal System
Endocrine system
Nervous system
Digestive system
50
HOMEOSTASIS is the ability to maintain relatively stable internal conditions.
False
True
51
Allows manipulation of the environment, locomotion, and facial expression. Maintains posture, and produces heat
Endocrine system
Respiratory system
Nervous system
Muscular system
52
Which best describes Phagocytosis.
Extracellular substances bind to specific receptor proteins
none of these
the cell engulfs some relatively large or solid material.
The cell gulps a drop of extracellular fluid containing solutes
53
The following are considered heterogeneous mixtures EXCEPT....
Colloids
suspension
All of these
Solutions
54
Simple diffusion is when lipid-soluble molecules directly travel through the phospholipid bilayer
True
False
