Tag: cell division

Quizzes (13) Questions (17)

Questions Related to cell division

Multiple choice mitosis structure of chromosome, cell cycle and cell division cell division biology cell division in embryo development division for growth and reproduction

Angiotensinogen is a protein secreted by

  1. Juxtaglomerular cells

  2. Macula densa cells

  3. Endothelial cells

  4. Liver cells
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Angiotensinogen is a plasma protein produced and secreted by liver cells. It is a sole precursor of all angiotensin peptide. Juxtaglomerular cells secrete renin which acts on angiotensinogen to release angiotensin I and then it is converted to angiotensin II by the action of enzyme angiotensin-converting enzymes.
So, the correct answer is 'Liver cells'.
Multiple choice mitosis structure of chromosome, cell cycle and cell division cell division biology cell division in embryo development division for growth and reproduction

Division of the nucleus is called ..........

  1. Cytokinesis

  2. Karyokinesis

  3. Replication

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Division of the nucleus is called karyokinesis. The process of partition of a cell's nucleus into the daughter cells during cell division is called karyokinesis. All the changes in a nucleus that occur during cell division are collectively termed as karyokinesis. It has four stages prophase, metaphase, anaphase, and telophase.

So the correct answer is "Karyokinesis".

Multiple choice mitosis structure of chromosome, cell cycle and cell division cell division biology cell division in embryo development division for growth and reproduction

All nuclear changes that occur during mitotic cell division are collectively called as

  1. Karyokinesis

  2. Cytokinesis

  3. Recombination

  4. Both A and B
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

All nuclear changes (Prophase, metaphase, anaphase, and telophase) that occurs during mitotic cell division are collectively called as karyokinesis. Mitotic cell division consists of two steps. The first step is karyokinesis where nuclear division takes place which is followed by cytokinesis i.e the division of cytoplasm takes place and individual daughter cells are formed. So, the correct answer is 'Karyokinesis'.

Multiple choice mitosis structure of chromosome, cell cycle and cell division cell division biology cell division in embryo development division for growth and reproduction

The epithelial cells lining the stomach of vertebrates are protected from damage by HCl because.

  1. HCl is too dilute

  2. The epithelial cells are resistant to the action of HCl

  3. HCl is neutralized in the stomach

  4. The epithelial cells are covered by mucus
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The epithelial cells lining the stomach of vertebrates are protected from damage by HCl because 'the epithelial cells are covered by a mucous secretion'.
So the correct option is D.
Multiple choice mitosis structure of chromosome, cell cycle and cell division cell division biology cell division in embryo development division for growth and reproduction

Epithelial cells serves the function of protection, secretion and absorption and is separated from the other tissues below by a _____.

  1. Basal lamina

  2. Lamina propria

  3. Connective tissue

  4. Stratum granulosum
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Epithelial tissues rest on a specialized extracellular matrix called the basal lamina, which separates them from the underlying connective tissues. Other options like lamina propria are connective tissue layers rather than the immediate separating boundary.

Multiple choice biology cell division cell division in embryo development division for growth and reproduction structure of chromosome, cell cycle and cell division mitosis

Which stage of cell cycle occurs immediately prior to mitosis 

  1. $M$
  2. $G _1$
  3. $S$
  4. $G _2$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

$G _2$ phase is the phase of cell cycle occurs immediately prior to mitosis.
sequence of cell cycle is -- $G _1$ to $S$ to $G _2$ to $M$ to cytokinesis.

So, the correct answer is '$G _2$