Science may x Biology unit 2 Flashcards
What is the name of the chemicals that break down proteins
enzymes
What is the name of the gas produced in respiration
carbon dioxide
What is the name of the movement of gases from high to low concentration
diffusion
What organelle is where respiration takes place
mitochondria
What is the tube that connects the mouth and nose to the lungs
trachea
What is the tube that branch off into each lung
Bronchi
What is the name of the many tubes that branch off in the lungs
Bronchioles
What is the name of the air sacs in the lungs
alveoli
How does oxygen get transported around the body
red blood cells
How does oxygen move from the alveoli to the bloodstream
diffusion
What is the name of the muscle that controls breathing
diaphgram
What is the name of the chemicals that break down proteins
enzymes
What is the name of the gas needed for respiration
oxygen
What is the name of the gas produced in respiration
carbon dioxide
What organelle is where respiration takes place
mitochondria
What is the name of the movement of gases from high to low concentration
diffusion
Which organelle contains the most genetic information
nucleus
Which organelle controls what enters and leaves the cell
cell membrane
Which part of the cell is where chemical reactions take place
cytoplasm
What is the life process that takes place in the mitochondria
respiration
What is the name of the chemical genes are made from
DNA
What does every human cell nucleus contain 23 pairs of
chromosomes
What is the male gamete called
sperm cell
What is the female gamete called
egg cell
What is the name of the complete genetic information of an organism
genome
What is the name of the process where cells divide to make copies
mitosis
What enzyme breaks down starch
amylase
What substance is made when starch is broken down
sugar(glucose)
What enzyme breaks down protein
protease
What substance is made when protein is broken down
amino acids
What enzyme breaks down lipids (fats)
lipase
What substance is made when lipids (fats) are broken down
fatty acids
How many life processes are there
7
What organ is where digested food absorbed into the bloodstream
small intestine
What are the air sacs in the lungs called
alveoli
What are the products of respiration
carbon dioxide
water
What are the reactants of respiration
glucose
oxygen
What are the reactants of photosynthesis
carbon dioxide
water
What are the products in photosynthesis
oxygen
glucose
Where do plants get the energy from to undergo photosynthesis
light
What are the holes in a leaf called that let gases pass in and out
stomata
What is the green chemical called that absorbs sunlight in a leaf
chlorophyll
What is the process where gases move from high to low concentration
diffusion
What is the name of a membrane that only lets some substances through
partially permeable membrane
What substance is made when protein is broken down
amino acids
What enzyme breaks down lipids (fats)
lipase
What substance is made when lipids (fats) are broken down
fatty acids
What part of a plant cell contains chlorophyll
chloroplasts
What part of a plant cell is a storage for sap
vacuole
What are the two products of photosynthesis
oxygen
glucose
Where does the energy come from needed for photosynthesis
light
What are the parts of a cell called
organelles
What part of a cell controls what enters and leaves
cell membrane
What part of a cell contains the genetic material
nucleus
What part of a cell is where proteins are made
ribosomes
What part of a cell is where respiration happens
mitochondria
What part of a cell is where chemical reactions take place
cytoplasm
What are all living organisms made up of
cells
What is the job of a cell membrane
controls what enters and leaves the cell
What part of a microscope can be used to focus the image
fine focus wheel
What part of a microscope is used to see the image
eye piece lense
What part of a plant is where photosynthesis takes place
leaf
What part of a plant is where water and minerals are absorbed
roots
What part of a plant is where water, sugar and minerals are transported
stem
What part of a plant is where the reproductive structures are held
flower
what 2 substances are needed for photosynthesis in a plant
carbon dioxide
water
what 2 substances are made in photosynthesis
oxygen
glucose
what form is the energy taken in for photosynthesis to take place
light
what chemical found in palisade cells absorbs this energy for photosynthesis
chlorophyll
what organ in a plant is this chemical found in
leaf
why are microscopes needed to see cells
they are small
what is found at the bottom of a leaf that lets gases move in and out
stomata
what gas needs to move into a plant for photosynthesis
carbon dioxide
what gas moves out of a plant produced by photosynthesis
oxygen
a chemical change is easy to reverse, and you can get back what you started with
false
a physical change is reversible and you can get back what you started with
true
a new chemical substance is made in a physical change
false
what equipment is used to measure the temp in a expermient
thermometer
what can change in a chemical reaction that suggests that a chemical reaction has taken place
temp
colour
what can you observe in a chemical reaction that shows a gas has been produced
bubbles
what is the scientific name for the substances you start off with in a chemical reaction
reactants
what is the scientific name for the substances you make in a chemical reaction
product
what is the scientific name for the solid that dissolves in a liquid
solute
what is the scientific name for the liquid that a solid dissolves in
solvent
what is made when a solid dissolves in water
solution
capital letters are used in state symbols
false
state symbols are put in brackets
true