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Recent questions tagged plant-physiology

In photosynthesis

asked Apr 8, 2014 by sreemathi.v

1 answer

The oxygen in photosynthesis is released from

asked Apr 8, 2014 by sreemathi.v

1 answer

Emerson effect indicates the existence of

asked Apr 7, 2014 by sreemathi.v

1 answer

Red drop occurs in wave length of

asked Apr 7, 2014 by sreemathi.v

1 answer

Red drop is

asked Apr 7, 2014 by sreemathi.v

1 answer

The number of light quanta required for evolution of one molecule of oxygen is called

asked Apr 7, 2014 by sreemathi.v

1 answer

How much energy is utilised in the synthesis of one molecule of glucose

asked Apr 7, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Photosynthesis is regarded as an oxidation reduction process.}\\\text{Reason:The transport involves step by step transport of electrons in non-cyclic and cyclic electron transport wherein oxidation of one substance coupled with reduction of another substance takes place.}\end{array}$

asked Apr 7, 2014 by sreemathi.v

1 answer

Dark reaction in photosynthesies is called because

asked Apr 7, 2014 by sreemathi.v

1 answer

The maximum evolution of oxygen is by

asked Apr 7, 2014 by sreemathi.v

1 answer

The process of photophorylation was discover by

asked Apr 7, 2014 by sreemathi.v

1 answer

Which enzyme is most abundantly found on earth

asked Apr 4, 2014 by sreemathi.v

1 answer

Kranz anatomy is one of the characteristics of leaves of

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Lysosomes help in the process of photorespiration .}\\\text{Reason:Lysosomes have basic enzymes.}\end{array}$

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:All submerged plants get }CO_2\text{ in the form of carbonates and biocarbonates}\\\text{Reason:Stomata are not present in submerged plants.}\end{array}$

asked Apr 4, 2014 by sreemathi.v

1 answer

Water releases protons.Twelve water molecules will release

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Photorespiration interferes with the successful functioning of Calvin cycle.}\\\text{Reason:photorespiration oxidises the pentose phosphate which is an acceptor of co2 in Calvin cycle.}\end{array}$

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:}C_4\text{ plants photosynthesize more efficiently than }C_3\text{ plants.}\\\text{Reason:}C_4\text{ plants have a shorter }CO_2\text{ cycle.}\end{array}$

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The energy capturing part of photosynthesis occurs in thylakoid membranes and cannot proceed without solar energy.}\\\text{Reason:The synthesis part of photosynthesis occurs in the stroma and does not require light energy.}\end{array}$

asked Apr 4, 2014 by sreemathi.v

1 answer

Match the items in column I with items in column II:

asked Apr 4, 2014 by sreemathi.v

1 answer

Match the items in column I with items in column II:

asked Apr 4, 2014 by sreemathi.v

1 answer

Match the items in column I with items in column II:

asked Apr 4, 2014 by sreemathi.v

1 answer

Which one is a component of ferredoxin?

asked Apr 4, 2014 by sreemathi.v

1 answer

NPK denotes

asked Apr 4, 2014 by sreemathi.v

1 answer

Passage of minerals from top soil to subsoil through seepage of water is known as

asked Apr 4, 2014 by sreemathi.v

1 answer

Phosphorus and nitrogen ions generally get depleted in soil because they usually occur as

asked Apr 4, 2014 by sreemathi.v

1 answer

Theory suggesting that carbon dioxide produced in respiration helps in mineral absorption is called

asked Apr 4, 2014 by sreemathi.v

1 answer

A trace element,also required for plant growth,and in the form of radioactive isotope useful in cancer therapy is

asked Apr 4, 2014 by sreemathi.v

1 answer

Iron deficiency results in

asked Apr 4, 2014 by sreemathi.v

1 answer

Active ion uptake means

asked Apr 4, 2014 by sreemathi.v

1 answer

Plant ash indicates

asked Apr 4, 2014 by sreemathi.v

1 answer

The element that causes toxic effect upon protoplasm are

asked Apr 4, 2014 by sreemathi.v

1 answer

Plastocyanin contains

asked Apr 4, 2014 by sreemathi.v

1 answer

Hydroponics is

asked Apr 4, 2014 by sreemathi.v

1 answer

Plants require two metallic compounds (minerals) for chlorophyll synthesis.They are

asked Apr 4, 2014 by sreemathi.v

1 answer

On the basis of symptoms of chlorosis in leaves a student inferred that this was due to deficiency of nitrogen.This inference could be corrected only if we assume that yellowing of leaves appeared first in

asked Apr 4, 2014 by sreemathi.v

1 answer

Most of the plants obtain nitrogen from the soil in the form of

asked Apr 4, 2014 by sreemathi.v

1 answer

Chlorosis in plants occurs due to

asked Apr 4, 2014 by sreemathi.v

1 answer

Which of the following is present in chlorophyll molecule

asked Apr 4, 2014 by sreemathi.v

1 answer

Which of the following elements is necessary for translocation of sugars in plants

asked Apr 4, 2014 by sreemathi.v

1 answer

Which one of the following essential elements normally obtain directly from the air by the plants

asked Apr 4, 2014 by sreemathi.v

1 answer

Which of the following is not an essential micro-nutrient.

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The active absorption of minerals is inhibited when roots are deprived of oxygen.}\\\text{Reason:Active absorption of minerals require expenditure of metabolic energy which comes from respiration in the presence of oxygen.}\end{array}$

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The nodule bacteria fixes nitrogen in presence of pigment leghaemoglobin}\\\text{Reason:The pigment leghaemoglobin acts as oxygen scavenger and creates anaerobic condition which is essential for the activity of enzyme nitrogenase}\end{array}$

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The ions move from endodermis to xylem elements by an active process}\\\text{Reason:For movement,metabolic energy comes from respiration }\end{array}$

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:In nepenthes,lamina is modified to capture insects to get nitrogenous food}\\\text{Reason:The plant proteins are broken down to amino acids which are then absorbed by plants}\end{array}$

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Rhizobial aggregates have been observed at distinct sites on curled root hairs }\\\text{Reason:The infection thread is formed by a process of invagination of the hair cell walls in the region of curling}\end{array}$

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Many insectivorous plants are able to survive plants are able to survive without feeding on insects.}\\\text{Reason:Growth of insectivorous plants is stimulated when they trap and utilise insects}\end{array}$

asked Apr 4, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Farmers grow a leguminous crop and plough it back in the field}\\\text{Reason:Leguminous plants fix atmospheric nitrogen through symbiotic nitrogen fixing bacteria}\end{array}$

asked Apr 4, 2014 by sreemathi.v

1 answer

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