Which of the following biomolecules is common to respiration - mediated breakdown of fats , carbohydrates , and proteins?

Phytochrome is a

In photosynthesis , the light independent reactions takes place at:

During biological nitrogen fixation , inactivation of nitrogenase by oxygen poisoning is prevented by?

Water soluble pigment found in plant cell vacuoles are;

A plant in your garden avoids photorespiratory losses , has improved water use efficiency , shows high rate of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the following physiological groups would you assign this plant?

Emerson's enhancement effect and Red drophave been instrumental in the discovery of ?

In a chloroplast the highest number of protons are found in;

The process which makes major difference between C₃ and C₄ plants is ;

Which statement is wrong about Kreb's cycle?

Fruit and leaf drop at early stages can be prevented by the application of;

Phosphoenol pyruvate (PEP) is the primary CO₂ acceptor in?

Which of the following is not a product of light reaction of photosynthesis?

Stomatal movement is not affected by ;

World Ozone Day is celebrated on ;

Which of these statements is incorrect?

What is the site of perception of photoperiod necessary for induction of flowering in plants?

It takes a very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants through the year to increase yield?

Conversion of glucose to glucose-6- phosphate , the first irreversible reaction of glycolysis , is catalyzed by?

Small green structures in the plant that hold pigment.

Green pigments found in plants, which is responsible for photosynthesis

Release of water from the leaves, which is part of the process of photosynthesis

Applied to cell walls for strength and rigidity

High-energy compound made during photosynthesis

All of the chemical reactions in a plant

A form of sugar

Principle form in which food is stored for plants

Chemical activators

Second stage of photosynthesis

What is the process by which a plant converts water and carbon dioxide to oxygen?

Process when chemical bonds in sugar molecules are broken to release energy.

ATP is...

Where does cellular respiration occur?

Photosynthesis can be broken down into two stages

Which is a characteristic of photosynthesis?

Which is a characteristic of cellular respiration?

What are the byproducts of cellular respiration?

Why would a florist keep cut flowers in a cooler?

This process puts water into the air, cools the environment and encourages rainfall.

Which part of the respiratory system is known as the voice box?

What is the role of the bicarbonate ion (HCO3-) in the transport of carbon dioxide?

The blood vessel which carries oxygenated blood from the lungs to the heart is Pulmonary vein

In Earthworms, the process of respiration is through head

Assertion (A) :Marine fishes shows exosmosis.

      Reason (R) :Body fluids of marine fishes has lesser solute concentration, the water molecules moves out of the body..

Aldosterone is the hormone which  plays a key role in regulating water reabsorption in the kidneys

Which glial cell type is involved in the blood-brain barrier and provides structural support to neurons?

Which part of the neuron receives signals from other neurons?

Acetylcholine is only found in the peripheral nervous system.

GABA is the inhibitory neurotransmitter in the central nervous system.

A.  Astrocytes            -1) Form myelin sheath in CNS

B.  Oligodendrocytes -2) Produce cerebrospinal fluid

C.  Ependymal cells -3) Blood-brain barrier.

D.  Microglia                -4) Clear debris and pathogens

-5) Form myelin sheath in PNS

A

Assertion (A) : Neurons are capable of division.

Reason (R) : They have centrosomes.

Choose the one  which is not heterotrophic feeding.

Liver is the exocrine and endocrine organ.

A. Pharynx                      - 1) Hunger contraction

B. Oesophagus                    - 2) Deglutition

C. Stomach                      - 3) Segmental contraction

D. Small intestine               - 4) Peristaltic

 5) Mass movement

Assertion (A) : Carbohydrates are more suitable for the production of energy in the body 
                          than proteins and fats..

Reason (R): Carbohydrates can be stored in the tissues as glycogen and can be used for
                      the production of energy

What organic molecule is necessary for cellular respiration to occur?

A process that allows the body to get oxygen to burn food for energy and gets rid of carbon dioxide

A dome shaped sheet of muscle, the _________, separates the chest from the abdomen

The tubes that go from the trachea into the lungs

A flap of tissue that closes when we eat so food doesn't not go down the trachea

The heart muscles are supplied by a special circulation called ------------------

Pace maker is seen in ---------------- of the heart.

Animals excrete urea are called---------------------

The heart is made of which of the following types of muscles?

A flap of tissue that prevents blood from flowing backward

Which do BOTH prokaryotes and eukaryotes contain?

Which does only eukaryotic cells contain?

Bacteria is an example of a(n)

Which statement IS a part of the cell theory?

The scientist who stated that all plants are made of cells was:

The scientist who looked at pond water in a microscope and called the living things "animalcules"

This scientist stated that all cells come from pre-existing cells:

This scientist stated that all animals are made of cells:

Which of the following organisms is made up of eukaryotic cells?

Which type of cell has a cell membrane?

The DNA of these cells is circular and not found within a nucleus.