STANDARD Botany Class 11 Questions

Membrane-bound organelles are absent in

Difference between the prokaryotic and eukaryotic cells in having

Fermentation takes place

The law of limiting factor for photosynthesis was enunciated by

Which stage connecting link between Meiosis I and Meiosis II in

Highest growth is found in

Phloem in gymnosperms lacks

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

Agar-Agar is obtained from

The roots that originate from the base of the stem are

G₀ state of cells in eukaryotic cell cycle denotes

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

Sweet potato is a modified

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

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?

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

Which of the following is the exception of cell theory

The significance of light and chlorophyll in photosynthesis was discovered by

Regeneration of damaged growing grass following grazing is largely due to

The anaerobic process after glycolysis is called

Roots play insignificant role in absorption of water in

Companion cells are closely associated with

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↑

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

Plasticity in plant growth means that

The aerobic respiratory pathway is appropriately termed

Which of the following is not a stem modification?

In mitochondria, cristae act as sites for

Exponential growth in plants can be expressed as

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

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

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

Meiotic division in zygote takes place in

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

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

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

Thallophyta includes

A group of plants with similar traits of any rank is

What is the eye of potato?

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

Phyllode is present in

Which is a taxon

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 :

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:

Yeast cell can progress through the cell cycle in about

Which one is correct sequence in glycolysis

Glycolysis (EMP Pathway) takes place in Or Anaerobic respiration takes place in the