Tag: Biology

What is a plant.

A plant is a living thing that can turn sunlight, water and CO2 into food.

Structure of a plant

Roots – The plant roots anchor the plant to keep it in place in the ground and absorb water.

Stem – The stem transports water and and nutrients up the roots all the way to the leaves.

Leaf – The Leaves produce’s food for the plant by photosynthesis.

Seeds – seeds are fertilised, mature ovules (an organ that forms the seeds of flowering plants) – the result of of sexual reproduction in plants.

Flower –  Flowers attract pollen substances to plants.

Nucleus – The nucleus contains the genetic material DNA.

Cytoplasm – The cytoplasm is the jelly-filling where chemical reactions occur.

Cell Membrane – The cell membrane is a skin that only allows water to soak through.

Mitochondria – The mitochondria makes energy for the cell.

Cell wall – The cell wall is a hard shell that protects the cell and keeps its shape.

Vacuole – The vacuole is the large water bubble in the middle of the cell.

Chloroplasts – The chloroplast contains green chlorophyll that turns sunlight into sugar.

Animal cells do not have a cell wall or chloroplasts

What is pollination

Pollination is when bees,insects and birds  have to do to transfer pollen grains to female and male stigma to create seeds.

Pollination is the act of transferring pollen grains from a male flower to a female stigma.  organism, including plants, is  One of the ways that plants can produce offspring is by making seeds.

This is how pollination works:

The wind or animals, especially insects and birds, pick up pollen from the male anthers and carry it to the female stigma. Flowers have different shapes, colours and smells, and often sugary nectar and nutritious pollen, to encourage animals to visit and pollinate them.

All living things do life processes

Movement –  living things need to move their bits.

Respiration – producing energy from fuel and oxygen.

Sensitivity – detecting your surrounding like heat and light.

Growth – getting bigger by adding more cells.

Reproduction – making a copy of yourself.

Excretion – getting rid of the waste products like CO2 and urea (not poo)

Nutrition – absorbing chemicals into cells.

Is Water alive

To be alive, you need to do all the seven life processes, MRSGREN

Water can move, but it cannot move by itself

Water cannot reproduce and make water babies

Therefore water is not alive.

Is fire alive?

• Fire can grow
• It can respire to make energy
• It is sensitive to water
• It can consume fuel
• It can excrete like CO2

But it cannot reproduce and make babies ]

Therefore it is not alive

Habitats 

give six examples of a habitat.

Forest, Grassland, Aquatic, Polar Mountain, desert

What is a Population of living things?

A population is a group of people or other organisms of one species live in the same place together.

What is a Habitat

A habitat is a place where a living thing or Plants makes its home and lives there.

plants can live in a habitat as well

What is a community of living things

The feature of a Kiwi

• brown fur – to camouflage in the bush so it cant be seen.
• No wings – Kiwi’s didn’t have predators so they evolved not needing their wings.
• Long beak – to find grubs in the ground and in rotten logs of wood.
• whiskers at the bask of the beak – to help feel in the dark.
• strong legs – to  run fast, to stand on rocks and logs without falling over.
• black eyes – because they are nocturnal and black eyes let in lots of light in the dark so they can see.
• nostrils at the end of its beak – so they smell their food.

The features of a cat

• Cats can jump up to 150 to 180 cm.
• Cats sleep 70 percent there life.
• Cats have sharp claws and sharp teeth
• Cats have a strong flexible body and quick reflexes

Habitat of Antarctica

• Temperature – Very cold the temperature of -80
• Land – Antarctica’s land is snow and ice. its 4km thick ice and 13.6m km2
• Animals – there are tons of different animals like penguins, seals, whales, birds and dolphin.
• Plants hair grass, pearlwort