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Test 5

The fingers are ______ to the wrist.
Lateral
Ventral
Medial
Proximal
Distal
The bridge of the nose is _____ to the left eye.
Lateral
Proximal
Ventral
Medial
Distal
The stomach is _____ to the spine.
Lateral
Ventral
Distal
Proximal
Medial
The lungs are ______ to the heart.
Distal
Ventral
Proximal
Lateral
Medial
The upper arm is ______ to the forearm.
Lateral
Medial
Proximal
Distal
Ventral
What is the main, general purpose of negative feedback?
To keep the body's blood sugar level high
To maintain homeostasis
To regulate excretion via the kidneys
To control body movement
A good example of a positive feedback mechanism would be _____________.
Enhancement of labor contractions
Blood calcium level regulation
Regulating glucose levels in the body
Body temperature regulation
What is a vertical section through the body, dividing it into anterior and posterior regions?
Transverse
Median
Frontal
Sagittal
The parietal pleura would represent a serous membrane ___________.
Covering individual lungs
Lining the thoracic cavity
Lining the abdominal cavity
Covering the heart
Homeostasis is the condition in which the body maintains ____________.
A dynamic state within an unlimited range, depending on circumstances
A relatively stable environment, within limits
The lowest possible energy usage.
A static state with no deviation from preset poits
Place the following in correct sequence from simplest to most complex: 1. molecules, 2. atoms, 3. tissues, 4. cells, 5. organs
1-2-4-3-5
1-2-3-4-5
2-1-3-4-5
2-1-4-3-5
Which of these is not part of, or found in, the dorsal cavity?
Kidney
Cranial cavity
Brain
Vertebral cavity
What is a section through the body, dividing it into left and right called?
Regional
Frontal
Transverse
Sagittal
Each daughter cell resulting from mitotic cell division has as exactly as many chromosomes as the parent cell.
True
False
Condensed chromosomes are visible throughout interphase.
True
False
The nuclear membrane fragments during metaphase.
True
False
DNA replication occurs during mitosis.
True
False
The correct sequence of the phases of mitosis is prophase, metaphase, anaphase and telophase.
True
False
Sister chromosomes are joined by a centromere.
True
False
The role of kinetic microtubules is to force the poles of the cell apart.
True
False
Metaphase is characterized by __________.
Chromosome replication
Division of the cytoplasm
Chromosomes aligning at the cell equator
Chromosomes getting pulled to opposite poles
Which of the following best describes anaphase?
Chromosomes align on the cell's equator
Chromatids separate
Centrioles separate
Nuclear membrane reforms
If a cell has 12 chromosomes before mitosis, each daughter cell will have how many chromosomes?
12
6
3
24
Cytokinesis is defined as _____.
The sum total of energy in a cell
Division of the cytoplasm
Division of the nucleus
Cellular movement
Which of the following best describe interphase?
Period between cell formation and reproduction
Cell growth and normal metabolic activity
One or more nucleoli are visible
All of the above
Mitosis _______.
Occurs continuously in all mature cells
Creates two genetically different cells
Is the formation of sex cells
Is division of the nucleus
Catabolism would be best described as a process that ________.
Elevates glucagon levels
Breaks down complex structures to simpler ones
Cause a decline in circulating ketone bodies
Builds up triglycerides during the postabsorptive state
Electrons are passed along the electron transport chain until they are ultimately accepted by _______.
ADP
Hydrogen
Oxygen
ATP synthase
Oxidation reduction reactions ________.
Are rarely coupled together
Involve the exchange of hydrogen and electrons
Occur via the gain of ATP or the loss of ADP
Utilize phosphorylases
Which of the following describes the intermediate step leading to the Krebs cycle?
NAD is reduced to NADH
CO2 is produced
Acetyl CoA is formed
A,B and C
What process primes a molecule to change in a way that increases its activity, produces motion, or does work?
Cellular respiration
Glycolysis
Phosphorylation
Beta oxidation
Which of the following does not occur in the mitochondria?
Glycolysis
Krebs cycle
Electron transport
Oxidative phosphorylation
The primary function of cellular respiration is to _______.
Effectively monitor the energy needs of the body
Determine the amount of heat needed by the human body
Break down food molecules and generate ATP
Provide the body with adequate amounts of vitamins and minerals
 
Which of the following describes how glucose enters the cell?
Primary active transport
Transcytosis
Pinocytosis
Facilitated diffusion
The external environment is a source of fuel and a catch basin for waste products..
True
False
Processes that break down complex molecules into simpler molecules are anabolic.
True
False
In the absence of oxygen pyruvic acid is reduced to lactic acid.
True
False
Glycolysis can only occur in the presence of oxygen.
True
False
The electron transport chain is located within the outer mitochondrial membrane.
True
False
Once it is formed, pyruvic acid enters the Krebs Cycle.
True
False
Four ATP molecules are initially invested at the beginning of glycolysis.
True
False
NAD is oxidized o NADH+ H+
True
False
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