Curriculum
Login

Curriculum

Biology & Geology

Chapter 1 - Support and Movement in Living Organisms

0/26

Chapter 2 - Hormonal Coordination in Living Organisms

0/32

Chapter 3 - Reproduction in Living Organisms

0/33

Chapter 4 - Immunity in Living Organisms

0/34

Chapter 5 - Molecular Biology - DNA Structure and Function

0/43

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

0/38

Chapter 7 - Geology, Earth Sciences and Ecology

0/28
Quiz

Lesson 2 Quiz: Adrenal Glands, The Pancreas and Reproductive Gonads

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit
  • Questions count: 12
Start Quiz
1.
The n-th term of an arithmetic sequence with first term a and common difference d is given by:
T_n = 1/2 n (2a + d)
T_n = a + (n - 1) * d
T_n = a * rn − 1
T_n = a + n * d
2.
In the arithmetic sequence (3, 7, 11, 15, ...), the common difference d and the 20th term (T_20) are respectively:
d = 3 and T_20 = 60
d = 4 and T_20 = 83
d = 4 and T_20 = 79
d = 5 and T_20 = 98
3.
If a, b, c form a geometric sequence of positive real numbers, the geometric mean b equals:
b = + sqrt(a * c)
b = a * c
b = a2 + c2
b = (a + c) / 2
4.
If (x - 1, x + 2, 3x) form a geometric sequence, the positive value of x is:
2
3
4
6
5.
The second derivative d2y/dx2 of the function y = x4 - 2 x3 + 5 is:
24 x - 12
12 x2 - 6 x
12 x2 - 12 x
4 x3 - 6 x2
6.
In a U-tube manometer containing two immiscible liquids in equilibrium, the heights of the liquid columns measured above the separating surface are:
Directly proportional to their densities
Proportional to the square of the cross-sectional area of the tube
Inversely proportional to their respective densities (h1 / h2 = rho2 / rho1)
Equal regardless of the liquids used
7.
Which of the following compounds exhibits polar covalent bonding due to a significant difference in electronegativity between 0.4 and 1.7?
Chlorine gas (Cl2)
Sodium chloride (NaCl)
Water (H2O)
Methane (CH4)
8.
Monocytes are functionally capable of leaving the bloodstream when needed:
Antibody formation
Transform into active macrophages to engulf microbes and cellular debris
Transformation into B cells
Histamine secretion
9.
Asexual reproduction differs from sexual reproduction in that:
It always requires the formation of gametes
Provides great genetic diversity
It is based on a single parental individual and maintains genetic stability over generations because it is based on mitosis
Expensive in energy and time
10.
Telomeres are found at the ends of eukaryotic chromosomes and perform an important function in:
Protecting chromosomes from corrosion and merging with each other and maintaining their structure
Synthesis of enzymes
Construction of ribosomes
Centromere doubling
11.
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:
Protecting the mRNA molecule from degradation by enzymes in the cytoplasm
Binding to the polymerase enzyme
Formation of the nuclear envelope
Encoding polar amino acids
12.
The two main functional sites on the tRNA molecule are:
Start location and stop location
Phosphate site and sugar site
The amino acid binding site is at the 3′ end' (sequence CCA), and anticodon site
DNA polymerase site and binding site
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12