Biology Urdu Medium 9th Class Chapter 5(Cell Cycle)Online Short questions with Answers Preparation

Question # 1

What is a tissue level?

Ans 1: Introduction:
In multicellular organisms, cells make tissues. A tissue is a group of similar cells that work together to perform one or more specific functions.
Example:
In animals:
Epithelial tissue- covers body surfaces and lines cavities e.g. skin
Muscle tissue-enables movement e.g. cardiac muscle in the heart.
In Plant:
Epidermal tissue-Protects the underlying parts e.g. epidermis of leaf
Vascular tissue-Transports water and nutrients e.g. xylem and phloem.

Question # 2

How different tissues form stomach.

Ans 1: i. Stomcah is an orga specialized for the disgestion of proteins and storing food
ii. Stomach has:
a) Epithelial tissues which secrete the gastric juice.
b) Mucular tissue swhich perform contractions of stomach walls for grinding of food, mixing enxyme with food and moving food to posterior end.

Question # 3

How do the smooth muscles contribute to the stomach's functin.

Ans 1: The smooth muscle in the stomach is primarity responsible for.
1. Churnign and mixing food with stomach acid
ii. Producing chyme by contracting and relexing in a coordinated manner which helps with digestion and peropels the partially digested food into the small intestine through a process called peristalsis.
iii. It facilitates the movement and mechanical breakdown of food within the stomach.

Question # 4

Define Cell

Ans 1: When organelles assemble and interract with each other, they make cell-the smallest unti with characteristics of life. They can carry out life activities and can also reproduce.
Example: Unicellular organismsm are made of only one cell while multicellular organisms are made of many cells.

Question # 5

Define Orgenelle

Ans 1: Molecules combine in specific ways and make the subcellular level i.g. orgenelle Each organelle is specialized to do a particular function.
Example: Mitochondria are responsible for cellular respiration and ribosomes are speciealized for protein synthesis.

Question # 6

Define Homeostasis and its importnace.

Ans 1: Introduction :
The organs and organ systems of the body work in coordination to maintain a stable internal environement. It is called homeostasis.Homeostasis is defined as the body's ability to maintain a stable internal environment despite the changes in the external environemnt
Example:
Examples of homeostasis include regulating the temperature, blood pressure, bllood sugar, and pH levels.

Question # 7

Enlist the level of organization form cells to organ systems.

Ans 1: The levels of organization from cells to organ system are as follows.
1. Cell
2. Tissue
3. Organ
4. Oran system.

Question # 8

What is the function of the palisade mesophyll in the leaf.

Ans 1: Palisade mesophyll in a leaf is responsibel for photosynthesis. It consists of tightly packed elongated cells with large number of chloroplasts to absorb light and produce food for plants.

Question # 9

Palisade and spongy mesophyll

Ans 1: Palisade Mesophyll:
It is located just beneath the upper epidermis
It consists oftighty packed elongated cells.
Their cells are rich with chloroplasts and has major role in photosynthesis
Ans 2: Spongy MesophyII:
It is presnet below the palisade mesophyII
It is composed of loosely arranged cells with air spaces between them.
These air spaces facukutate tge duffysuib if gases throughout the leaf.

Question # 10

What is the role of shoot systme in Plants.

Ans 1: The shoot system consists of two portiions. the vegetative parts of the plant. such as the leaves and the stems. and the reproductive parts of the platn, which include flowers and fruits. The shoot system generally grows above ground, where it absorbes thelight needed for photosynthesis.

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Biology (New Book) - 9th Class Biology Urdu Medium Chapter 5 Preparation

What is a tissue level?

How different tissues form stomach.

How do the smooth muscles contribute to the stomach's functin.

Define Cell

Define Orgenelle

Define Homeostasis and its importnace.

Enlist the level of organization form cells to organ systems.

What is the function of the palisade mesophyll in the leaf.

Palisade and spongy mesophyll

What is the role of shoot systme in Plants.

Prepare Complete Set Wise 9th Class Biology Urdu Medium Chapter 5 Preparation Short Questions With Answers

Set 1

Set 2

9th Class Biology Urdu Medium Chapter 5 Preparation - Set 1

What is a tissue level?

How different tissues form stomach.

How do the smooth muscles contribute to the stomach's functin.

Define Cell

Define Orgenelle

Define Homeostasis and its importnace.

Enlist the level of organization form cells to organ systems.

What is the function of the palisade mesophyll in the leaf.

Palisade and spongy mesophyll

What is the role of shoot systme in Plants.

9th Class Biology Urdu Medium Chapter 5 Preparation - Set 2

What is organ system? Give examples.

What is the role of shoot systme in Plants.

Define Orgenelle

Enlist the level of organization form cells to organ systems.

Palisade and spongy mesophyll

Define organelles with example

Difference between the following:i. Tissue and organ

Define Molecule

Define Atom

Define Homeostasis and its importnace.

9th Biology Urdu Medium Chapter 5 Preperation

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Difference between the following:
i. Tissue and organ