Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

Advertisement
51.

In leaves of Ce plants, malic acid synthesis during CO2 fixation occurs in

  • Bundle sheath

  • Mesophyll

  • Epidermis

  • Guard cells


52.

In which form does the food transported in plants?

  • Sucrose

  • Fructose

  • Glucose

  • Lactose


53.

In CAM plants, CO2 acceptor is

  • RuBP

  • PEP

  • OAA

  • PGA


54.

DCMU 

  • inhibits PS- I

  • inhibits PS- II

  • destroy chloroplast

  • inhibits oxidative phosphorylation


Advertisement
55.

What happened when we inoculated Rhizobium in wheat field?

  • No increase in production (nitrogen content of soil remains same)

  • A lot of increase in production (nitrogen content of soil increases)

  • Fertility of soil decreases

  • Fertility of soil increases


56.

The law of limiting factors for photosynthesis was enunciated by

  • R. Hill

  • Calvin

  • Krebs

  • Blackman


57.

Photosynthesis in C4 plants is relatively less limited by atmospheric CO2 levels because

  • four carbon acids are the primary initial CO2 fixation products

  • the primary fixation of CO2 is mediated via PEP carboxylase

  • effective pumping of CO2 into bundle sheath cells

  • RUBISCO in CO4 plants has higher affinity for CO2


58.

Chlorophyll in chloroplasts is located in

  • grana

  • pyrenoid

  • stroma

  • both (a) and (c)


Advertisement
59.

Pigment anthocyanin is located in

  • chloroplast

  • chromoplast

  • cytoplasm

  • vacuole


60.

In photosythesis action and absorption spectrum were related by

  • Von Helmont

  • Engelmann

  • Emerson

  • Lavosier


Advertisement