Class 11 Biology - Chapter Cell cycle and Cell Division NCERT Solutions | What is the average cell cycle span for
Welcome to the NCERT Solutions for Class 11th Biology - Chapter Cell cycle and Cell Division. This page offers a step-by-step solution to the specific question from Excercise 1 , Question 1: what is the average cell cycle span for a mammalia....
Question 1
What is the average cell cycle span for a mammalian cell?
Answer
The average cell cycle span for a mammalian cell is approximately 24 hours.
More Questions From Class 11 Biology - Chapter Cell cycle and Cell Division
- Q:- Describe the following:
(a) synapsis
(b) bivalent
(c) chiasmata
Draw a diagram to illustrate your answer. - Q:- How does cytokinesis in plant cells differ from that in animal cells?
- Q:- Describe the events taking place during interphase.
- Q:- Why is mitosis called equational division?
- Q:- What is G0 (quiescent phase) of cell cycle?
- Q:- Can there be DNA replication without cell division?
- Q:- Distinguish anaphase of mitosis from anaphase I of meiosis.
- Q:- Name the stage of cell cycle at which one of the following events occur:
(i) Chromosomes are moved to spindle equator
(ii) Centromere splits and chromatids separate
(iii) Pairing between homologous chromosomes takes place
(iv) Crossing over between homologous chromosomes takes place - Q:- Analyse the events during every stage of cell cycle and notice how the following two parameters change
(i) Number of chromosomes (N) per cell
(ii) Amount of DNA content (C) per cell - Q:- Find examples where the four daughter cells from meiosis are equal in size and where they are found unequal in size.
Popular Questions of Class 11 Biology
- Q:- Why are living organisms classified?
- Q:- Discuss how classification systems have undergone several changes over a period of time?
- Q:- What is the basis of classification of algae?
- Q:- What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?
- Q:- What is meant by modification of root? What type of modification of root is found in the (a) Banyan tree (b) Turnip (c) Mangrove trees
- Q:- State the location and function of different types of meristem.
- Q:- Answer in one word or one line. (i) Give the common name of Periplaneta americana. (ii) How many spermathecae are found in earthworm? (iii) What is the position of ovaries in the cockroach? (iv) How many segments are present in the abdomen of cockroach? (v) Where do you find malphigian tubules?
- Q:-
Which of the following is not correct?
(a) Robert Brown discovered the cell.
(b) Schleiden and Schwann formulated the cell theory.
(c) Virchow explained that cells are formed from pre-existing cells.
(d) A unicellular organism carries out its life activities within a single cell. - Q:- What are macromolecules? Give examples.
- Q:- What are the factors affecting the rate of diffusion?
Recently Viewed Questions of Class 11 Biology
- Q:- Give a brief account of viruses with respect to their structure and nature of genetic material. Also name four common viral diseases.
- Q:-
Distinguish between
(a) IRV and ERV
(b) Inspiratory capacity and Expiratory capacity
(c) Vital capacity and Total lung capacity - Q:- Can you identify the correct sequence of taxonomical categories?
(a) Species → Order → Phylum → Kingdom
(b) Genus → Species → Order → Kingdom
(c) Species → Genus → Order → Phylum - Q:- “All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.
- Q:-
What are the steps involved in formation of a root nodule?
- Q:- Find and write down structures of 10 interesting small molecular weight biomolecules. Find if there is any industry which manufactures the compounds by isolation. Find out who are the buyers.
- Q:-
Discuss the main steps in the digestion of proteins as the food passes through different parts of the alimentary canal.
- Q:- What is the significance of atrio-ventricular node and atrio-ventricular bundle in the functioning of heart?
- Q:- Discuss the factors responsible for ascent of xylem sap in plants.
- Q:- Discuss The respiratory pathway is an amphibolic pathway.
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