Plant Hormones and Flowering in Pineapple

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Questions and Answers

Which combination of hormones can induce flowering in pineapple plants throughout the year?

Cytokinin and Abscisic acid

Auxin and Ethylene (correct)

Gibberellin and Cytokinin

Gibberellin and Abscisic acid

What triggers the activation of protoxin to active Bt toxin in boll worm?

Body temperature

Acidic pH of stomach

Moist surface of midgut (correct)

Alkaline pH of gut

Which cells secrete mucus to protect the lining of the gastro-intestinal tract?

Goblet Cells (correct)

Duodenal Cells

Chief Cells

Oxyntic Cells

What is the confirmatory test for typhoid fever?

Widal test Signup and view all the answers

Which microorganism can be used as a biocontrol agent in the treatment of plant disease?

Trichoderma Signup and view all the answers

What is the genetic disorder in which an individual has an overall masculine development, gynaecomastia, and is sterile?

Klinefelter syndrome Signup and view all the answers

What is lacking in phloem in gymnosperms?

Companion cells Signup and view all the answers

What is the causative agent of typhoid fever?

Salmonella typhi Signup and view all the answers

What is the Respiratory Quotient (RQ) value of tripalmitin?

0.9 Signup and view all the answers

Which of the following is a commercial blood cholesterol lowering agent?

Statin Signup and view all the answers

What is the characteristic of Annelida, Arthropoda, and Chordata?

True coelomates with segmentation of body Signup and view all the answers

Which of the following is not a characteristic of Bilateral symmetry?

Organ system level of organisation Signup and view all the answers

What is the sequence of organs in the alimentary canal of cockroach starting from?

Mouth, esophagus, crop, gizzard, intestine Signup and view all the answers

Which of the following is not a method in situ conservation of biodiversity?

Ex situ conservation Signup and view all the answers

What is the reason why Pinus seeds cannot germinate and establish without fungal association?

It has an obligate association with mycorrhizae. Signup and view all the answers

Which enzyme catalyzes the conversion of glucose to glucose-6-phosphate in the first irreversible reaction of glycolysis?

Hexokinase Signup and view all the answers

What feature of the genetic code allows bacteria to produce human insulin by recombinant DNA technology?

The genetic code is nearly universal Signup and view all the answers

What is the process by which morphine is converted to heroin?

Acetylation Signup and view all the answers

Which of the following sexually transmitted diseases is not completely curable?

Herpes Signup and view all the answers

What is the term for the symbiotic relationship between fungi and plant roots?

Mycorrhizae Signup and view all the answers

What is the purpose of the first irreversible reaction of glycolysis?

To convert glucose to glucose-6-phosphate Signup and view all the answers

What is the significance of the genetic code being nearly universal?

It allows for the expression of human genes in bacterial systems Signup and view all the answers

Study Notes

Plant Physiology

Auxin and Ethylene can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield.
Gibberellin and Abscisic acid are not a suitable combination of hormones for artificial flowering.

Bacteria and Toxins

The Bt toxin of Bacillus thuringiensis is activated in the boll worm by the moist surface of the midgut and alkaline pH of the gut.
Acidic pH of the stomach is not involved in the activation of Bt toxin.

Human Health

Goblet Cells are the cells that secrete mucus, which protects the lining of the gastro-intestinal tract from various enzymes.
Streptococcus pneumoniae is not the causative agent of typhoid fever.
Salmonella typhi is the causative agent of typhoid fever, and the Widal test is the confirmatory test for typhoid.

Biocontrol Agents

Trichoderma can be used as a biocontrol agent in the treatment of plant diseases.

Genetic Disorders

An individual with an overall masculine development, gynaecomastia, and sterility is likely to have a genetic disorder.

Botany

Phloem in gymnosperms lacks sieve tubes.
Pinus seeds cannot germinate and establish themselves without fungal association because they have an obligate association with mycorrhizae.

Genetics

The ratio of F2 is 1:2:1 (Red: Pink: White).
The law of segregation does apply in this experiment.

Biochemistry

Conversion of glucose to glucose-6-phosphate is catalyzed by Hexokinase.
Phosphofructokinase is not the enzyme that catalyzes the first irreversible reaction of glycolysis.

Biotechnology

Genetic code is nearly universal, allowing bacteria to produce human insulin by recombinant DNA technology.
Heroin is synthesized by acetylation of morphine.

STDs

One of the sexually transmitted diseases that is not completely curable is not specified.

Animal Characteristics

Annelida, Arthropoda, and Chordata are the animal groups that possess true coelomates with segmentation of the body and bilateral symmetry.

Respiratory Quotient

Respiratory Quotient (RQ) value of tripalmitin is 0.7.

Medicines

Statin is a commercial blood cholesterol-lowering agent.
Cyclosporin A, Streptokinase, and Lipases are not blood cholesterol-lowering agents.

Conservation Biology

In situ conservation of biodiversity is not done by the method mentioned.

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Description

This quiz tests your knowledge on the combination of plant hormones that can artificially induce flowering in pineapple plants. Learn about the role of hormones in plant growth and development.