Cell structure Flashcards
What is the function of the cell wall?
it provides structural support.
What is the function of the cell membrane?
It controls what goes in and out of the cell.
What is the function of the vacuole?
It contains the cell sap and is used for storage.
What is the function of cytoplasm?
it’s where lots of chemical reactions take place.
What is the function of chloroplasts?
it is the site of photosynthesis.
What is the function of the nucleus?
It contains genetic information, controls and regulates the activities of the cell.
What is the function of mitochondria?
it produces ATP through aerobic respiration to generate energy for cells.
What is the function of ribosomes?
It is the site of protein synthesis.
What is glycogen?
where is it found
it is a storage molecule found in animals cells
What is starch?
where is it found?
an insoluble storage molecule found in plant cells.
Why are plant and animal cells classed as eukaryotes?
because they have a nucleus.
This part makes food for the plant, contains green chlorophyll, traps sunlight for photosynthesis _______
chloroplast
food storage in the animal cell
glycogen
rigid strcuture made of celulose - supports and strengthens the cell
cell wall
large insoluble molecule - carbohydrate storage in the plant cell
starch
permanent large organelle, contains cell sap, helps support the cell
vacuole
Gel like, where chemical reactions take place
cytoplasm
membrane bound organelle containing genetic material which controls the cells activities
nucleus
most energy is released by respiration here
mitochondria
protein synthesis happens here
ribosomes
controls substances that move in and out of the cell, helps keep the shape of the cell
cell membrane
Why is cell specialisation important for the development and growth of a healthy baby from a fertilised egg?
babies are made of different types of cells or cells that have different functions OR specialised cells undergo mitosis to grow further cells (cells divide or reproduce to form identical cells)
What does the head of a sperm contain
- haploid nucelus contains the paternal DNA
- acrosome cap contains hydrolytic enzymes which help the sperm penetrate the egg
- centrioles are needed by a zygote to divide
What does a mid-piece of a sperm contain
high numbers of mitochondria which provides energy (ATP) needed to move
what does the tail of the sperm cell do
it propels the sperm to the egg
how do u convert nanometer to micrometer and verse versa?
nm to um = /1000
um to nm = x1000
how do u convert micrometer to millimeter and vice versa?
um to mm = /1000
mm to um = x1000
how to convert mm to cm and vice versa
mm to cm = /10
cm to mm = x10
how do u calculate total magnification from eyepiece lens and objective lens
multiply the powers of both of them
what does resolution mean
the smallest scale division of the microscope
what does magnification mean
the ability of a microscope to produce an image of an object at a scale larger(or smaller) than its actual size
