The law of limiting factors for photosynthesis was enunciated by

• R. Hill

• Calvin

• Krebs

• Blackman

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

• Bundle sheath

• Mesophyll

• Epidermis

• Guard cells

In which form does the food transported in plants?

• Sucrose

• Fructose

• Glucose

• Lactose

In CAM plants, CO₂ acceptor is

• RuBP

• PEP

• OAA

• PGA

DCMU 

• inhibits PS- I

• inhibits PS- II

• destroy chloroplast

• inhibits oxidative phosphorylation

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

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

Chlorophyll in chloroplasts is located in

• grana

• pyrenoid

• stroma

• both (a) and (c)

Pigment anthocyanin is located in

• chloroplast

• chromoplast

• cytoplasm

• vacuole

In photosythesis action and absorption spectrum were related by

• Von Helmont

• Engelmann

• Emerson

• Lavosier