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Biology & Geology

Chapter 1 - Support and Movement in Living Organisms

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Chapter 2 - Hormonal Coordination in Living Organisms

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Chapter 3 - Reproduction in Living Organisms

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Chapter 4 - Immunity in Living Organisms

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Chapter 5 - Molecular Biology - DNA Structure and Function

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Chapter 6 - Molecular Biology - RNA, Protein Synthesis and Genetic Engineering

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Chapter 7 - Geology, Earth Sciences and Ecology

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Quiz

Lesson 1 Quiz: Support in Plants and the Human Skeletal System

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  • Questions count: 18
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1.
What is the total number of bones constituting the adult human vertebral column?
26 bones
206 bones
24 bones
33 bones
2.
The atomic radii of the elements from Chromium to Copper remain remarkably steady and nearly constant across the first transition series because of:
The mutual compensation between the increasing nuclear charge and the repulsive forces among accumulated 3d electrons
The identical number of neutrons in their nuclei
The sudden increase in atomic mass
Decreasing ionization energies
3.
The sum of the first n terms of an arithmetic sequence (S_n) is formulated as:
S_n = n * (a + d)
S_n = a / (1 - r)
S_n = a * (1 - rn) / (1 - r)
S_n = n / 2 * [ 2a + (n - 1) * d ] = n / 2 * [ a + l ]
4.
The sum of the first 10 terms of the geometric sequence 2, 6, 18, 54, ... equals:
29,524
59,048
19,682
118,096
5.
The middle vertebra of the human spine is vertebra No.
Paragraph No. 18
Paragraph No. 20
Paragraph No. 16
Paragraph No. 17 (10th dorsal)
6.
How many pelvic girdle bones are there in an adult human?
Two bones (halves of the pelvis fused at the pubic symphysis)
One bone
6 bones
4 bones
7.
The number of bones in one upper limb in a human is equal to:
30 greatness
28 greatness
26 greatness
32 greatness
8.
How many limb skeleton cavities are in an adult human body?
4 Cavities
6 Sockets (2 valgus + 2 acetabular + 2 ulna)
8 Cavities
2 cavity
9.
The number of metatarsal bones in an adult human is:
5 Thin, long bones
8 Bones in two rows
7 Irregular bones
14 Short bone
10.
The pelvic girdle connects directly posteriorly to the axial skeleton at the bones of:
Dorsal vertebrae
Conjoined sacral vertebrae
The coccygeal vertebrae
Lumbar vertebrae
11.
The hormone that affects both glandular and non-glandular tissue in the adult female body is:
Calcitonin hormone
Growth hormone
Aldosterone hormone
Oxytocin
12.
The hormone responsible for maintaining the balance of minerals in the blood by stimulating the reabsorption of sodium ions and eliminating excess potassium through the kidneys is:
Cortisol hormone
Aldosterone
Thyroxine hormone
Insulin hormone
13.
Acromegaly occurs in adult humans as a result of:
Thyroxine deficiency in childhood
Calcium deficiency
Excessive secretion of growth hormone (GH) after puberty and regrowth of distant bones such as the limbs and jaws
Hyperinsulinemia
14.
The salivary glands and sweat glands in the human body are examples of:
Common glands
Steroid tissue
Aductal endocrine glands
Exocrine ductal glands discharge their secretions through special channels outside the bloodstream
15.
The covalent chemical bond that connects the heavy and light peptide chains in an antibody molecule is:
Disulfide Bonds - S-S
Additional peptide bonds
Weak hydrogen bonds
Ionic bonds
16.
Which of the following immune structures represents the first line of defense in the human body to prevent the entry of pathogens?
Intact skin with its stratum corneum, mucus, HCl in the stomach, and saliva saturated with lysozyme
Toxic T cells
Antibodies
Macrophages
17.
The standard start codon in an mRNA molecule recognized by the first tRNA molecule carrying methionine is:
AUG
UAG
UAA
UGA
18.
The first human protein produced commercially using recombinant DNA technology to treat diabetics is:
Human hormone insulin (Insulin)
Hemoglobin
Interferon protein
Growth hormone
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