Random Biology
These organisms use sunlight to make food for itself
Producers/Autotrophes/ Photosynthetic plants
Which part of a plant cell controls the movement of substances into and out of the cell?
Cell membrane
In which part of the body of a mammal does physical digestion occur?
mouth / stomach
A molecule that serves as a fast source of energy.
What are carbohydrates?
The process by which water moves through the cell membrane to balance out a high concentration of solutes.
What is osmosis?
This type of cells that contain DNA, cytoplasm, ribosomes and a cell membrane, but no other membrane-bound organelles.
Bacteria
lungs, diaphragm, ribs, intercostal muscles, larynx, trachea, bronchi, bronchioles, alveoli
Define a gene
length of DNA that codes for a protein 3 Define an all
Describe phenotype
the observable features of an organism
the uses of energy in living organisms
muscle contraction, protein synthesis, cell division, growth
The processes that cycle water, carbon dioxide, glucose, and oxygen between organisms are known as:
Photosynthesis and Respiration
movement of molecules across cell membranes without the need for energy input
Diffusion
Proteins that make chemical reactions happen at lower temperatures in the body.
Enzymes
This organelle serves as a point of storage in a cell.
The Vacuole
During Cell Transport, this process pulls water towards dissolved materials.
Osmosis
Binding site on an enzyme that is shaped to fit a specific substrate:
The Active Site
What is the name of the gland that produces insulin
Pancreas
Describe the reasons for habitat destruction (any 2)
(a) increased area for housing, crop plant production and livestock production (b) extraction of natural resources (c) freshwater and marine pollution
Give two examples of continuous variation.
Height, Weight, hair length
Two (of three) organelles that are only present in plant cells and not animal cells
What are the chloroplasts, large central vacuole, cell wall?
These are the products of cellular respiration
What are water, carbon dioxide, and ATP?
The following is the overall reaction of what process?6CO2 + 6H2O —> C6H12O6 + 6O2
What is photosynthesis?
What is transpiration?
The lose of water from plant through the leafs
Describe adrenaline as the hormone secreted in ‘fight or flight’ situations
(a) increased breathing rate (b) increased heart rate (c) increased pupil diameter
Describe 2 structural difference in adaptations of insect pollinated and wind-pollinated flowers
Bright colored flower in insect
Feathery stigma in Wind
Pollen light in wind
Funnel shaped in insect
small petal in wind
longer filament in wind