Plant Cells
What structure provides support and protection for plant cells and is not found in animal cells?
The Cell Wall.
Which part of the cell controls what the cell does and stores its DNA?
Nucleus.
What is it called when particles move from an area of high concentration to an area of low concentration?
Diffusion
What is the movement of water through a semi-permeable membrane called?
Osmosis
What is considered as the basic unit of life?
The cell
How does the cell membrane help the plant cell survive?
The cell membrane helps the plant cell survive by carefully controlling what enters and leaves the cell, allowing important nutrients and water in while keeping harmful substances substances out.
Which small structures in animal cells store water, nutrients, and waste, and help maintain the cell’s proper function and balance?
Small Vacuoles.
Does diffusion happen in liquids, gases, or both?
In cells, diffusion can happen in both liquids and gases because the particles, like water, oxygen, and nutrients, are able to move freely across the cell membrane.
What kind of membrane allows water to pass through but blocks bigger particles?
A Semi-Permeable membrane.
True Or False? New cells come from old cells dividing, which helps all living things stay alive.
True; All new cells come from pre-existing cells.
What is the function of Chloroplasts in a plant cell?
Chloroplasts capture sunlight and convert it into chemical energy through photosynthesis, allowing plant cells to produce glucose and oxygen to fuel growth and survival
Which organelle in animal cells contains enzymes that help break down waste and old cell parts?
Lysosomes.
True Or False? Diffusion is faster when the temperature is higher.
True
True Or False? Osmosis moves water from low concentration to high concentration of water.
False. It moves from high concentration to low concentration of water.
Does the Cell Theory apply to all organisms?
Yes. The Cell Theory applies to every living organism, no matter how big or small.
Which part of a plant cell has its own DNA, is covered by two membranes, and makes energy for the cell
Mitochondria.
Which tiny structures of animal cells make proteins and can float in the cytoplasm or attach to the Rough Endoplasmic Reticulum (Rough ER)?
Ribosomes.
Why are particles always moving, even when they are spread out evenly?
Particles are always moving because they have kinetic energy, which keeps them in constant motion.
Does osmosis only happen in cells?
Mostly, yes. Osmosis is important in living cells because they are surrounded by membranes.
Does the Cell Theory still change today?
Yes. As new technology gives scientists more information, small ideas are added, but the three main parts stay the same.
How do plant cells contribute to the survival of plants and other living things?
Plant cells produce food and oxygen through photosynthesis, provide the energy and resources plants need to grow, and support ecosystems by supplying food and oxygen for animals and humans.
How do animal cells help an organism, which is any living thing that can survive on its own, stay alive and healthy?
Animal cells help an organism stay alive and healthy by working together to produce energy and make proteins, which allows the organism to grow, survive, and function properly.
Why is diffusion important for living things?
Diffusion is important for living things because it helps cells get oxygen and nutrients and remove waste so they can stay alive and healthy.
Why is osmosis important for plants?
Osmosis helps plants take in water through their roots and keeps their cells firm so the plant can stand upright.
Does the Cell Theory explain how many cells an organism must have?
No. It only explains that any living thing must have at least one cell, not how many.