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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: 20
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1.
Which of the following represent limited motion synovial joints that allow movement in only one direction?
Shoulder joint and hip joint
Joints of the bones of the base of the skull
Elbow joint and knee joint
Pubic symphysis cartilage joints
2.
The n-th term of an arithmetic sequence with first term a and common difference d is given by:
T_n = a * rn − 1
T_n = 1/2 n (2a + d)
T_n = a + n * d
T_n = a + (n - 1) * d
3.
In a U-tube manometer containing two immiscible liquids in equilibrium, the heights of the liquid columns measured above the separating surface are:
Equal regardless of the liquids used
Directly proportional to their densities
Inversely proportional to their respective densities (h1 / h2 = rho2 / rho1)
Proportional to the square of the cross-sectional area of the tube
4.
The two main functional sites on the tRNA molecule are:
Start location and stop location
Phosphate site and sugar site
DNA polymerase site and binding site
The amino acid binding site is at the 3′ end' (sequence CCA), and anticodon site
5.
If the stores of glycogen and ATP in the chest muscles and diaphragm run out, a person may die as a result of:
Heart valve collapse
Thoracic bone damage
Continuous muscle tension in the respiratory muscles hinders inhalation and exhalation and causes suffocation
Severe high blood pressure
6.
Which of the following compounds exhibits polar covalent bonding due to a significant difference in electronegativity between 0.4 and 1.7?
Water (H2O)
Chlorine gas (Cl2)
Sodium chloride (NaCl)
Methane (CH4)
7.
What is the direct physiological effect of injecting a healthy person with an excessive dose of the hormone insulin?
A sharp increase in blood sugar
Increased urine secretion
A severe drop in blood glucose levels (hypoglycemia) and hypoglycemic coma
Uric acid accumulation
8.
The number of terms in the finite arithmetic sequence (5, 9, 13, ..., 81) is:
20 terms
21 terms
19 terms
25 terms
9.
The ion directly responsible for the explosion of synaptic vesicles and the release of acetylcholine in the neuromuscular synapse cleft is:
Calcium ion Ca2+
Chloride ion Cl−
Potassium ion K+
Sodium ion Na+
10.
If you know that the number of vertebrae in the spine is 33, the number of bones is calculated by:
24 greatness
29 greatness
26 Just greatness
33 greatness
11.
Party 3' For a DNA strand that ends with a group:
Free phosphate (-PO4)
Free carboxylate (-COOH)
Free amine (-NH2)
Free hydroxyl (-OH)
12.
The direct cause of myxedema in an adult is:
Insulin deficiency
Hyperactivity of the parathyroid gland
Excessive increase in growth hormone
Severe deficiency in thyroxine secretion in adulthood
13.
The motor unit in skeletal muscle functionally consists of:
One motor neuron and all the muscle fibers that feed it with their nerve endings (from 5 to 100 fibers)
One myosin filament and ten Z lines
A muscle bundle surrounded by a fatty membrane
One muscle fiber and one nerve fiber
14.
The polyadenyne tail (Poly-A Tail) added to the end of the mRNA molecule in eukaryotes consists of about 200 adenine nucleotides and functionally functions to:
Encoding polar amino acids
Binding to the polymerase enzyme
Formation of the nuclear envelope
Protecting the mRNA molecule from degradation by enzymes in the cytoplasm
15.
The direct cause of muscle fatigue is:
Abundance of oxygen gas
Lack of sodium ions
Accumulation of lactic acid in muscle fibers as a result of anaerobic respiration
Increased amounts of ATP molecules
16.
Asexual reproduction differs from sexual reproduction in that:
It is based on a single parental individual and maintains genetic stability over generations because it is based on mitosis
It always requires the formation of gametes
Expensive in energy and time
Provides great genetic diversity
17.
Which of the following pairs of ribs are classified as floating ribs?
7th and 8th pairs
8th, 9th, and 10th pairs
1st and 2nd pairs
11th and 12th pairs
18.
The number of sarcomeres in a muscle fiber containing 6 dark Z lines is:
7 to cut
12 piece
6 to cut
5 Muscle parts
19.
The area of ​​the spine that faces the abdominal cavity and is characterized by wide, articulated vertebrae that is more tolerant of pressure is:
Dorsal vertebrae
Cervical vertebrae
Lumbar vertebrae (5 vertebrae)
Sacral vertebrae
20.
According to Chargaff's rules's Rules) In the DNA double helix, the equal ratio is always:
A = G And T = C
The ratio of adenine A equals thymine T, and the ratio of guanine G equals cytosine C (A+G). = T+C)
A / T = 2
A + T = G + C always
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