Explanation

• The age of a tree is determined by its Rings (Number of Annual Rings).
• Each annual ring generally represents one year of growth.
• Counting the rings on the trunk helps determine the tree's age.
• The study of tree rings is called Dendrochronology.

Last verified on 20-07-2026

Explanation

• Pineapple is also known as "Ananas".
• Scientific Name: Ananas comosus
• Plant Family: Bromeliaceae
• Type: Tropical fruit

Last verified on 09-07-2026

Explanation

• Strawberry is the only common fruit whose seeds are on the outside.
• Its seeds are called “achenes”.
• They are present on the surface.
• The red fleshy part is actually not the real fruit but a swollen part of the flower.
• Strawberries are rich in vitamin C and antioxidants.

Last verified on 25-06-2026

Explanation

• Photosynthesis produces glucose and oxygen.
• Green plants use sunlight, water, and carbon dioxide.
• This process occurs in chloroplasts using chlorophyll.
• Glucose is used as food for energy and growth.
• Oxygen is released as a byproduct into the atmosphere.

Last verified on 10-03-2026

Explanation

• Protists are simple, mostly unicellular organisms.
• Algae show plant-like characteristics among protists.
• They contain chlorophyll for making food.
• They produce their own food through photosynthesis.
• That is why they are called plant-like protists.

Last verified on 10-04-2026

Explanation

• During the day, plants perform photosynthesis, absorbing carbon dioxide and releasing oxygen.
• At night, in the absence of sunlight, they undergo respiration, where they take in oxygen and release carbon dioxide.

Last verified on 02-04-2026

Explanation

• Stomata are tiny pores on the surface of leaves that allow gas exchange (CO₂ in, O₂ out).
• They play a key role in photosynthesis and transpiration.
• Number per leaf: Thousands, varies by plant

Last verified on 19-03-2026

Explanation

• Leaves are called the food factory of plants.
• They prepare food through the process of Photosynthesis.
• Chlorophyll in leaves absorbs sunlight to make food.
• Photosynthesis uses Carbon dioxide (CO₂), Water (H₂O), and Sunlight.
• Food produced is mainly Glucose, which provides energy to the plant.

Last verified on 13-03-2026

Explanation

• Cell membrane contains phospholipids, proteins, and glycoproteins.
• Glycoproteins form a sticky outer layer (glycocalyx).
• This layer slows the movement of molecules across the membrane.
• Glycolipids also reduce diffusion slightly, but less than glycoproteins.
• Glycerol does not affect cell diffusibility significantly.

Last updated question 17-02-2026

Explanation

Amaranthaceae is a family of flowering plants (e.g., Amaranthus).

Flowers are usually small and inconspicuous.

Petals are absent in most species; flowers are apetalous.

Sepals are present and protect the flower.

Leaves and stems are present as normal vegetative structures.

Last updated question 17-02-2026