In: Biology
Which of the following produces ATP:
Select one or more:
a. glycolysis
b. transition reaction
c. citric acid cycle
d. electron transport chain
Question 2
The stomach contains 3 layers of skeletal muscle.
Select one:
True
False
Question 3
When blood enters the heart, it always first enters an atrium and then continues to a ventricle.
Select one:
True
False
Question 4
Which of the following are considered to be part of the "innate immune system"?
Select one or more:
a. fever
b. stomach acids
c. interferons
d. T lymphocytes
e. pores developing in the wall of a bactrium, causing it to burst
Question 5
The atrioventricular valve prevents blood from backflowing from the atrium into the ventricle.
Select one:
True
False
Question 6
Which part of the conduction system of the heart is considered to be the heart's pacemaker, i.e. it maintains the steady beat of the heart.
Select one:
a. SA node
b. AV node
c. Purkinje fibers
d. Bundle of His
Question 7
Platelets are pieces of the megakaryocyte cell.
Select one:
True
False
Question 8
Homeostasis is a mechanism that the body uses to balance its internal environment. There are 3 components to the homeostatic mechanism: receptor, control center and effector.
Select one:
True
False
Question 9
The following is the order of blood flow through the chambers of the heart: inferior and superior vena cava --> right atrium --> right ventricle --> pulmonary vein --> lungs --> pulmonary artery --> left atrium --> left ventricle --> aorta
Select one:
True
False
Question 10
The molecules that help the body idetify cells as "self" (i.e. not foreign) are the:
Select one:
a. antigens
b. memory cells
c. major histocompatibility complex markers
d. macrophages
Question 11
Which white blood cell is the first to arrive to the site if an infection?
Select one:
a. monocyte
b. neutrophil
c. lymphocyte
d. eosinophil
Question 12
ATP is required for troponin to move off of the myosin binding sites of the tropomyosin molecule.
Select one:
True
False
Question 13
Rigor mortis refers to the stiffening of the body when a person dies. The reason the body stiffens is because, in the contraction cycle, ATP is required for muscle to relax.
Select one:
True
False
Question 14
The main molecule that makes up the "walls" of the cell is the ________ molecule.
Select one:
a. carbohydrate
b. water
c. phospholipid
d. triglyceride
Question 15
Capillaries can be as wide as one red blood cell thick.
Select one:
True
False
Question 16
Which part of the mitochondria is said to be the site of ATP synthesis:
Select one:
a. cristae
b. outer membrane
c. cytoplasm
Question 17
This type of bone cell is responsible for building new bone tissue. It is the:
Select one:
a. osteoblast
b. osteocyte
c. osteoclast
Question 18
An autoimmune disorder is when the person's immune system has trouble distinguishing between selfand non-self. Their immune system attacks the person's own cells because it thinks that those cells are foreign when they actually aren't.
Select one:
True
False
Question 19
Where in adults does blood cell production occur?
Select one:
a. in the marrow within the medullary cavity
b. in the yellow bone marrow
c. in the marrow within the spongy bone tissue
d. in the red bone marrow
e. both c and d
Question 20
Mitochondrial diseases that are inherited are more likely to be inherited from the mother than the father.
Select one:
True
False
Question 21
Polysaccharides are made when monosaccharides are bound together through:
Select one:
a. condensation synthesis
b. hydrolysis
c. hydrogen bonding
d. an ionic bond
Question 22
Which part of the hemoglobin molecule does the oxygen bind to?
Select one:
a. globulin
b. heme disc
c. iron
d. alpha chain
e. beta chain
Question 23
What is true about asbestos:
Select one or more:
a. it causes the lysosomes to burst and release enzymes into the entire cell
b. teh lysosome cannot break down asbestos with its digestive enzymes
c. asbestos can increase your risk for lung cancer
d. it causes impaired respiratory function
e. all of the above
Question 24
Which of the following is a function of bones?
Select one:
a. it supports soft tissues
b. it allows us to move
c. it protects us, such as the skull protecting the brain
d. it can store essential minerals that the body needs to survive
e. all of the above
Question 25
The hair root can be found in which layer of the skin?
Select one:
a. epidermis
b. dermis
c. subcutaneous layer
Question 26
The use of anabolic steroids can cause the user to have a heart attack.
Select one:
True
False
Question 27
Not yet answered
Which part of the neuron would you likely find the mitochondria?
Select one:
a. axon
b. dendrite
c. nucleus
d. cell body
Question 28
Leukocytes is the technical term for a white blood cell.
Select one:
True
False
Question 29
When evaluating askin growth to see if it is melanoma, we look at 4 things: asymmetry, undefined borders, multiple mottled colors and grwoths larger than half a centimeter.
Select one:
True
False
Question 30
Where does blood get deoxygenated
Select one:
a. the heart
b. the lungs
c. tissues all over the body
Question 31
The cytotoxic T cell plays an integral role in the antibody-mediated response.
Select one:
True
False
Question 32
When new bone tissue is built, the type of cell that ultimately becomes embedded within the bone matrix is the:
Select one:
a. osteoblast
b. osteocyte
c. osteoclast
Answer:
1) Which of the following produces ATP:
Select one or more:
a. glycolysis - Correct
b. transition reaction
c. citric acid cycle - Correct
d. electron transport chain - Correct
2) The stomach contains 3 layers of skeletal muscle - False (the stomach contains 3 layers of smooth muscle: outer longitudinal, middle circular, and innermost oblique layers)
3) When blood enters the heart, it always first enters an atrium and then continues to a ventricle.
Select one:
True
False
4) Which of the following are considered to be part of the "innate immune system"?
Select one or more:
a. fever - Correct
b. stomach acids - Correct
c. interferons - Correct
d. T lymphocytes
e. pores developing in the wall of a bactrium, causing it to burst
5) The atrioventricular valve prevents blood from backflowing from the atrium into the ventricle - False (The atrioventricular valves function to prevent the backflow of blood from the ventricles to the atria)
6) Which part of the conduction system of the heart is considered to be the heart's pacemaker, i.e. it maintains the steady beat of the heart.
Select one:
a. SA node - Correct (Sinoatrial node is the primary pacemaker and responsible for the rest of the heart's electrical activity)
b. AV node
c. Purkinje fibers
d. Bundle of His
7) Platelets are pieces of the megakaryocyte cell - True (Platelets are produced from very large bone marrow cellscalled megakaryocytes by fragmentation)
8) Homeostasis is a mechanism that the body uses to balance its internal environment. There are 3 components to the homeostatic mechanism: receptor, control center and effector - True
9) The following is the order of blood flow through the chambers of the heart: inferior and superior vena cava --> right atrium --> right ventricle --> pulmonary vein --> lungs --> pulmonary artery --> left atrium --> left ventricle --> aorta
Select one:
True
False
10) The molecules that help the body identify cells as "self" (i.e. not foreign) are the:
Select one:
a. antigens - Correct (antigen could be self-antigen or from external environment foreign antigen)
b. memory cells
c. major histocompatibility complex markers
d. macrophages
11) Which white blood cell is the first to arrive to the site if an infection?
Select one:
a. monocyte
b. neutrophil - Correct (neutrophils are often one of the first cell types to arrive at a site of infection)
c. lymphocyte
d. eosinophil
12) ATP is required for troponin to move off of the myosin binding sites of the tropomyosin molecule - TRUE (The binding of ATP to the myosin head results in the myosin head disconnecting from Actin)
13) Rigor mortis refers to the stiffening of the body when a person dies. The reason the body stiffens is because, in the contraction cycle, ATP is required for muscle to relax - TRUE (muscles need ATP in order to release from a contracted state)
14) The main molecule that makes up the "walls" of the cell is the ________ molecule.
Select one:
a. carbohydrate - Correct ( Cellulose in plants and chitin in fungi are carbohydrate molecules)
b. water
c. phospholipid
d. triglyceride