What Is Tissue

Q. The outermost and innermost layers of anther wall are respectively

1. Epidermis, Endothecium
2. Middle layers , Endothecium
3. Tapetum, Epidermis
4. Epidermis, Tapetum

Q.

What is the definition of histology?

Q.

What is the structure and function of the human body?

Q.

Which of the following is a primary Meristem?

1. Cork cambium

2. Vascular cambium in roots

3. Intra fascicular cambium

4. None of the above

Q. A single maize root apical meristem can give rise to more than 17, 500 new cells per hour, while cells in a water melon may increases in size by upto 350, 000 times. In the former and latter, growth is expressed respectively as an increase in cell ___________.

1. Number and size

2. Size and size

3. Number and number

4. Size and number

Q. What are the different parts of a typical root? Explain.

Q. Study of tissues is called

1. histology
2. cytology
3. embryology
4. morphology

Q. Which of the following statements is incorrect about gymnosperms?

1. They are heterosporous
2. Male and female gametophytes are free living
3. Most of them have narrow leaves with thick cuticle
4. Their seeds are not covered

Q.

Some of the properties of tissues are not the constituents of its cells. Give three examples to support the statement.

Q.

Which of the following plant cells show totipotency?

1. Cork cells

2. Meristem

3. Sieve tubes

4. Xylem vessels

Q.

Which tissue has dead cells?

Q. Which of the following statements is not true about tissues?

1. They are found in all the vertebrates
2. They are a group of one or more types of cells that perform a function
3. The study of tissues is called histology
4. They are classified on the basis of their growth pattern

Q. Study of tissues is called

1. histology
2. cytology
3. embryology
4. morphology

Q. Which of the following statements is true?

1. Vessels are unicellular with narrow lumen
2. Vessels are multicellular with side lumen
3. Tracheids are unicellular with wide lumen
4. Tracheids are multicellular with narrow lumen

Q.

Why is cambium to be a lateral meristem

Q.

In potatoes, starch is stored in

1. Chlorenchyma

2. Parenchyma

3. Sclerenchyma

4. Collenchyma

Q.

To make ropes and matting, what kind of cells are used?

Q.

What are the meristems occurring between mature tissues called?

Q.

___ have tubular cells with perforated walls and are living in nature.

Q.

A group of cells alike in form, function, and origin are called ____.

Q.

Which among the following is applicable to the members of Phaeophyceae?

1. Pigments of chlorophyll a and b; stored food starch, cell wall of cellulose and pectin

2. Pigments chlorophyll a and c; stored food mannitol and laminarin, cell wall of cellulose and algin

3. Pigments chlorophyll a and d, stored food floridean starch, cell wall of cellulose, pectin and polysulphate esters

4. Pigments chlorophyll a and c; stored food floridean starch, cell wall of cellulose and chitin

Q.

Name the tissue found in the cortex of roots?

Q. Identify the process taking place in this experiment.

1. Ringing experiment for translocation of sap
2. Demonstration of root pressure
3. Eosin test to demonstrate ascent of sap
4. Demonstration of transpiration

Q. The phenomenon of elongation of stem in the plants with rosette habit is known as

1. rosetting
2. bolting
3. phase of elongation
4. Both (a) and (c)

Q.

The study of tissues is called

1. Cytology

2. Embryology

3. Histology

4. Pathology

Q.

A synthetic plant growth regulator which induces bolting in certain plants is

1. 2, 4-D

2. BAP

3. IAA

4. NAA

Q.

Why is cambium considered to be a lateral meristem?

Q. __________________ directly develops into male gametophyte in angiosperms.

1. Microspore
2. Microsporangia
3. Sporogenous tissue
4. Endothecium

Q. Select the correct statement with respect to the given plants :-

1. All of these
2. Opium is dried latex obtained from the unripe capsular fruits of plant A
3. The drug obtained from plant B is a powerful CMS stimulant, which increases a person’s mental alertness and physical activity
4. Plant C belongs to family Moraceae, bhang, ganja charas and marijuana are the hallucinogenic products obtained from this plant

Q. Which one of the following pairs is wrongly matched while the remaining three are correct?

1. Penicillium – Conidia
2. Water hyacinth - Runner
3. Agave - Bulbils
4. Bryophyllum - Leaf buds