Tag: introduction to tissues

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Multiple choice botany plant tissues introduction to tissue tissues - "the teams of workers" introduction to tissues

Compound tissue is defined as.

  1. Similar types of cells held together by connective tissue

  2. Different types of cells which are different in structure and function

  3. Different types of cells performing one function

  4. Similar cells at different regions performing many functions
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A compound tissue (or complex tissue) consists of more than one type of cell working together to perform a common function, such as xylem or phloem in plants.

Multiple choice botany plant tissues introduction to tissue tissues - "the teams of workers" introduction to tissues

Histology is study of

  1. Tissues

  2. Cells

  3. Structures discernible with naked eyes

  4. Changes in form and structure during development
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  1. Cytology is the branch of biology that deals with the structure of a cell.
  2. Histology is the branch of biology that deals with the study of microscopic anatomy or tissue.
  3. Morphology is the study of structure discernible with a naked eye.
So the correct option is 'Histology'

Multiple choice botany plant tissues introduction to tissue tissues - "the teams of workers" introduction to tissues

In a woody dicotyledonous tree, which of the following parts will mainly consist of primary tissues -

  1. Stem and root

  2. All parts

  3. Shoot tips and root tips

  4. Flowers, fruit and leaves
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
In a woody dicotyledonous tree, the meristems which occur at tips of roots and shoots produce primary tissues and are called apical meristems.
So, the correct answer is 'Shoot tips and Root tips'.
Multiple choice botany plant tissues introduction to tissue tissues - "the teams of workers" introduction to tissues

State whether the following statements are true or false.
An extracellular matrix helps some cells to adhere to neighbouring cells.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Extracellular matrix is the network of macromolecules like collagen, enzymes etc, which provide structural support to the cells. They help in the formation of tissues and organs. Extracellular matrix functions as cell adhesive as they are helpful in the interaction between cells and matrix.

So, the correct statement is 'True'.

Multiple choice botany plant tissues introduction to tissue tissues - "the teams of workers" introduction to tissues

The systems in an organism work independently.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Systems present in your body are the circulatory, respiratory, muscular, digestive, integumentary, endocrine, reproductive, and nervous systems. All of these systems have specific functions but they cannot function independently, meaning that they rely on all the other systems in order to work properly.

So, the correct answer is 'False'.
Multiple choice botany plant tissues introduction to tissue tissues - "the teams of workers" introduction to tissues

We do not sense any pain when we clip our nails or cut our hair. Why?

  1. They are made up of dead cells.

  2. These parts are senseless.

  3. They are very strong to tolerate pain.

  4. None of these.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Hairs and nails are made of dead tissues. Only the base of the hair and the base of the nail are living. 
  • The dead tissues are devoid of the nerve supply which acts as messengers to convey the sensation of pain and in their absence, it cannot be perceived by our brain. 

  • Thus, the correct answer is option A.
Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

Basic unit of ecological hierarchy is

  1. Ecosystem

  2. Biological community

  3. Population

  4. Individual
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The basic unit of ecological hierarchy is individual because a community starts building from an individual which grows onto form an entire ecosystem. 

It cannot be Ecosystem as that is one of the largest unit in hierarchy. Many biological communities together form an ecosystem and many individuals in a given space form a population. The ecological hierarchy goes like this: individual---> population---> community ----> ecosystem ----> biome ---> biosphere. So the correct answer is 'Individual'. 

Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

The habitable part of the earth is called

  1. Soil

  2. Lithosphere

  3. Biosphere

  4. Biome
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The biosphere is made up of the parts of Earth where life exists, but there is uneven distribution of living organisms in the biosphere. The biosphere extends from the deepest root systems of trees, to the dark environment of ocean trenches, to lush rain forests and high mountains.
Scientists describe the Earth in terms of spheres - Lithosphere, Atmosphere, Hydrosphere. Since life exists on the ground, in the air, and in the water, biosphere overlaps all these spheres. Biosphere has existed for about 3.5 billion years.

Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

Amoeba, Hydra, Jellyfish, plants and animals; all are living things so by definition they are

  1. Organisms

  2. Tissues

  3. Organelles

  4. Organs
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A.An organism is an individual living thing. It can be as simple as a single-celled Amoeba or it can be as complex as a human being.
B.A tissue is a collection of structurally similar cells acting together to perform a specific function.
C.An organelle is a small constituent of a cell that has a specific function. For example, mitochondria (called as powerhouse of the cell) aids in generating energy for cell functions.
D.An organ is a group of tissues that performs a specific function. For example, stomach and kidney are organs. 

So, the correct option is 'organism'.

Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

All the living organisms and non-living factors of the Earth constitute

  1. Biosphere

  2. Community

  3. Biome

  4. Association
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The biosphere is a global ecosystem composed of living organisms (biotic) and the nonliving (abiotic) factors from which they derive energy and nutrients. It is a relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean. 

Biomes are very large ecological areas on the Earth's surface, with fauna and flora (animals and plants) adapting to their environment. 
A community is a collection of species populations.