問題一覧
1
Tumour-infiltrating cells are returned to the patient’s circulatory system using a needle that is inserted into the patients vein. A vein is used rather than an artery because a vein has:
Thin walls and contains blood that is at a relatively low pressure
2
In systole: The heart is ____ The AV valves are ____ The semi lunar valves are ____
Contracted, closed, open
3
Which is the correct function of white blood cells
fight infections
4
The septum ensures that blood flows in the one direction
False
5
Once an egg cell is fertilized, it undergoes
Mitosis
6
Who would have a higher blood pressure?
60 year old
7
The process that occurs to produce sex cells such as sperm and egg cells is
Fertilization
8
The function of genes is to encode for the production of
Proteins
9
Antibodies are important in the defense of the body. They
Are produced in response of antigens present in the blood
10
Which is the correctly labeled of the heart ___ aorta ___ right ventricle ___ pulmonary vein ___ septum ___ semilunar valve ___ vena cava
ll, lll, lV, Vl, V, l
11
Which is not a way diseases spread
Germs
12
Which is the correct function of Veins and Venules
Carry blood back to the heart from body cells
13
Which is the correct function of red blood cells
Carry oxygen in exchange for carbon dioxide
14
Which is the correct function of helper t cells
Activate b cells and killer t cells
15
Which statement is correct about the following blood pressure 145/34
Systolic pressure is too high and diastolic pressure is too low
16
Which is the correct parking of nitrogen bases
Adenine-thymine Guanine-cytosine
17
In diastole: The heart is ____ The AV valves are ____ The semi lunar valves are ____
Relaxed, open, closed
18
What is the correct name for the strand ACTGATCAGCCG
Threonine, aspartate, glutamine, proline
19
Arteries carry _____ blood _____ the heart
oxygenated, away from
20
During an immune response, some cells of the immune system expose antibodies and, thereby, cause pathogens to be immobilized and form clumps. Which cells of the immune system have this function?
B cells
21
Genetic engineering is the modification of the DNA molecule using special technology.
False
22
Blood enters the right atrium through the ______.
supperior vena cava
23
Diploid cells have:
Both pairs of homologous chromosomes, total of 46 chromosomes
24
Which is correctly matched
1234
25
A pesticide that comes in contact with a persons skin can be first absorbed into the person’s bloodstream by
A capillary
26
Veins carry ____ blood _____ the heart
deoxygenated, towards
27
Which is the correct function of antigens
Identifying cells
28
The phenotype of individual ll-6 is that of a
Normal female
29
Humans have __ chromosomes
46
30
If bacteria in an infection replicate out of control, this could be a result of
A small number of white blood cells
31
What is the correct function of arteries ams arterioles
Carey blood away from the heart to other body cells
32
Which is the correct function of macrophages
antigen presentation
33
Which is the correct function of platelets
Initiate blood clotting
34
A likely symptom of pulmonary stenosis is
Farigue and shortness of breathe during exercise
35
Which is the correct order of phases of mitosis
Interphase, prophase, metaphase, anaphase, telephase
36
Pressure is higher in the veins versus the arteries
False
37
Mitosis is the process where 4 haploid daughter cells are formed
False
38
Chromosomal mutations are the changes in structure or number of chromosomes
True
39
Which is the correct function of Capillaries
Exchange of nutrients and wastes
40
Two environmental risks are associated with plants genetically modified to be pesticide resistant
ll and lV
41
Cells divide in mitosis for growth, maintenance and repair
True
42
Which of these is not a way capillaries’ thin walls allow for diffusion
Blood
43
What is the correct definition of a mutation
a mistake in replication that happens naturally
44
Which are connected to DNA
A, B, D, E, F
45
Which is the correct order when measuring blood pressure Step 1 __ Step 2 __ Step 3 __ Step 4 __
1467
46
Which cells signal the end of an immune response after target pathogens have been destroyed?
Suppressor t cells
47
Arterial infections are treated by
Antibiotics
48
The sequence of base pairs on one side of the molecule is ACTCATTAG. What is the sequence of the base pairs on the other side?
TGAGTAATC
49
Which is not a function of the circulatory system
Control blood flow
50
Who would have a higher blood pressure?
Couch potato
51
Which is not an example of a point/gene mutation
Replication of nitrogen bases