STANDARD Botany Class 11 Questions

Which stage connecting link between Meiosis I and Meiosis II in

Membrane-bound organelles are absent in

Agar-Agar is obtained from

Difference between the prokaryotic and eukaryotic cells in having

The roots that originate from the base of the stem are

Phloem in gymnosperms lacks

Which one of the following aspects is an exclusive characteristic of living things

Highest growth is found in

The law of limiting factor for photosynthesis was enunciated by

Fermentation takes place

The significance of light and chlorophyll in photosynthesis was discovered by

In the diagram given above, some of the algae have been labelled as 'A', 'B', 'C', 'D' and 'E'. These algae are respectively identified as

Sweet potato is a modified

Bacteria which play a great role in recycling nutrients like nitrogen, phosphorus, iron and sulphur are:

Which of the following is the exception of cell theory

The anaerobic process after glycolysis is called

Assertion (A) : Measurement and comparison of the total plant growth per unit time is not absolute growth rate. Reason (R) : The growth of given system per unit time as percentage of initial size is called the relative growth rate What of the following is true?

G₀ state of cells in eukaryotic cell cycle denotes

The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for

Regeneration of damaged growing grass following grazing is largely due to

Who proposed the cycle of events leading to the fixation of CO₂ in mesophyll and its reduction in bundle sheath

Growth can be measured in various ways. Which of these can be used as parameters to measure growth

C₆H₁₂O₆ + 2ADP + 2Pi → 2C₂H₅OH + 2ATP + 2CO₂↑

Companion cells are closely associated with

Roots play insignificant role in absorption of water in

The regions of the stem where leaves are borne are called ___________ while ___________ are the portions between two ___________.

The aerobic respiratory pathway is appropriately termed

Plasticity in plant growth means that

In mitochondria, cristae act as sites for

Exponential growth in plants can be expressed as

Which of the following is not a stem modification?

Which of the following taxonomical ranks contain organisms least similar to one another

Stems modified into flat green organs performing the functions of leaves are known as

At what phase of meiosis are there two cells, each with its chromatids aligned at the spindle equator

Euglenoids have protein rich layer instead of cell wall this layer is called:

Meiotic division in zygote takes place in

What is the eye of potato?

'Peptidoglycan' is a characteristic constituent of the cell wall of

Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres

Thallophyta includes

A group of plants with similar traits of any rank is

Which is a taxon

In which phase of mitosis are the chromosomes arranged around the equator of the spindle

Given below are two statements : Statement I : In chlorophyceae stored food is starch. Statement II : Prothallus is a gametophyte, free living photosynthetic structure form in pteridophyte. Choose the correct answer from the options given below :

Phyllode is present in

Yeast cell can progress through the cell cycle in about

Whorled, simple leaves with reticulate venation are present in

Earlier classification systems included bacteria, blue green algae, fungi, mosses, ferns, gymnosperm and the angiosperms under plants. Which character are taken for this classification:

Which one is correct sequence in glycolysis

Chromosome number is halved in meiosis during