QUESTIONS & CORRECT ANSWERS
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Which of the following uses skeletal muscles and voluntary nerve signals? - CORRECT
ANSWER A) Sweating
B) Texting
C) Breathing
D) Digesting
B- It involves the tarsals and the voluntary nerves sending signals to the tarsals from the
brain
Which of the following ejects waste created during digestion? - CORRECT ANSWER
A) Small intestine
B) Large intestine
C) Esophagus
D) Rectum
D
Which structure alters the volume of the chest cavity? - CORRECT ANSWER A)
Trachea
B) Lungs
C) Diaphragm
D) Alveoli
C
Which of the following structures is the smallest? - CORRECT ANSWER A) Gene
B) Nucleotide
C) DNA
D) Chromosome
B
Which of the following statements correctly explains the sagittal anatomical plane? -
CORRECT ANSWER A) It divides the body into left and right sides
B) It divides the body into unequal left and right sides
C) It divides the body's into anterior and posterior sections
D) It divides the body into upper and lower sections'
,A
A 6kg box is placed on a surface. Two students investigate how different types of forces
can affect its motion. The text box shows the steps for the investigation.
1. Two students push the box for 5 min in the same direction.
2. A student pushes the box for 5 min in one direction.
3. Note the distance the mod moves when two students push the box.
4. Compare the distance the box moved each time.
5. Identify in which case the box moved faster.
6. Note the distance the box moves when one student pushes the box.
Which of the following should be the correct sequence of the steps? - CORRECT
ANSWER A) 1,6,5,4,3,2
B) 6,3,2,1,5,4
C) 2,6,1,3,4,5
D) 4,6,2,5,3,1
C
Which of the following structures is directly stimulated by messages from the
hypothalamus? - CORRECT ANSWER A) spinal cord
B) Pancreas
C) Gonads
D) Pituitary gland
D
Which of the following explains the relationship between chromosomes and genes? -
CORRECT ANSWER A) Several chromosomes makeup one strand of a gene.
B) Many genes can be found on a single chromosome.
C) Chromosomes and genes are similar in length, but one expresses a protein and one
does not.
D) Chromosomes are the outer membrane in charge of protecting all the genes.
B
The disassociation of hydrogen molecules into hydrogen atoms is a reversible reaction.
The equilibrium constant of the reaction is 10^(-36) at 25 and 6x10^(-5) at 5,000?
Which of the following statements is true about equilibrium at two temperatures? -
CORRECT ANSWER A) Most of the hydrogen gas is undissociated at 5,000° C, and
the equilibrium lies towards the reactants.
B) Most of the hydrogen gas is disassociated at 25° C, and the equilibrium lies towards
the products.
C) Most of the hydrogen gas is disassociated at 5,000° C, and the equilibrium lies
towards the products.
,D) Most of the hydrogen gas is undissociated at 25° C, and the equilibrium lies towards
the products.
C- The value of the equilibrium constant is high at temperature 5,000° C. Therefore,
most of the reactants convert into products at that temperature, and the equilibrium lies
toward the products.
Which of the following options distinguishes the active and passive transport
mechanisms? - CORRECT ANSWER A) Active transport: Lower to Higher
concentration; Passive transport: Higher to lower concentration
B) Active transport: Lower to Higher concentration; Passive transport: Higher to lower
concentration
C) Active transport: Higher to Lower concentration; Passive transport: Higher to lower
concentration
D) Active transport: Higher to lower concentration; Passive transport: Lower to Higher
concentration
A- Active and passive transports are tow different types of transport mechanisms. Active
transport allows the movement of molecules from a.region of lower to a region of higher
concentration. However, passive transport involves the movement of molecules from
higher to lower concentrations region.
Which of the following organs a absorbs water and salt from digested food? -
CORRECT ANSWER A) Mouth
B) Stomach
C) Liver
D) Large intestine
D
Lung cancer is found more often in people who have a history of smoking. Scientists
believe this is because lung cells are damaged over time. Which of the following pieces
of evidence supports the explanation? - CORRECT ANSWER A) A group of non
smokers are studied and have the same rates of lung cancer as do those with smoking
backgrounds
B) Studies have found that smoking can cause other life-threatening conditions, such as
chronic bronchitis and emphysema
C) Chemicals found in cigarettes have shown to damage part of cells that can lead to
cancer
D) 87% of lung cancer deaths are due to smoking
C
Which of the following is the enzyme in tears that destroys microorganisms? -
CORRECT ANSWER A) Granzyme
B) Lysozyme
, C) Pyrogen
D) Cytokine
B
Which of the following structures sends out electrical impulses signaling the muscle
fibers of the atria to contract? - CORRECT ANSWER A) Sinoatrial node
B) Arteries
C) Atrioventricular node
D) Veins
A
Which of the following statements can be concluded about the standard anatomical
position? - CORRECT ANSWER A) It gives a standard point of reference for describing
different functions of the human body
B) It gives a standard point of reference for describing the number of muscles in the
human body
C) It gives a standard point of reference for describing different measurements of the
human body
D) It gives a standard point of reference for describing anatomical positions and terms
of the human body
D
Which of the following describes the function of glucagon? - CORRECT ANSWER A)
Stimulates fullness
B) Stimulates the uptake of glucose by cells
C) Stimulates the breakdown of glycogen
D) Digests protein
C
Which of the following describes a neutron? - CORRECT ANSWER A) Positively
charged subatomic particle
B) Negatively charged subatomic particle
C) Neutral subatomic particle
D) Negatively charged atom
C
Which of the following structure is a valve present between the stomach and the small
intestine? - CORRECT ANSWER A) Antrum
B) Cardiac sphincter
C) GE junction
D) Pyloric sphincter