Science Test Knowts

Autotroph

Animal that makes its own food

Hetrotroph

Animal that cant make its own food

Photosynthesis

capturing energy from sun to make food

raw materials of photosynthesis

Carbon dioxide, water, light energy

what happens in first stage of photosynthesis

chlorophyll in the chloroplasts helps capture light energy and turns it into something that can be used in stage 2

what happens in the second stage of photosynthesis

cells use hydrogen from stage 1 and carbon dioxide to make sugars

how do heterotrophs benefit from photosynthesis

it makes plants’ food that they eat

what is cellular respiration

the process when cells get energy from glucose

raw materials of cellular resp

glucose and oxygen

products of cellular respiration

Carbon dioxide, hydrogen, energy

are hetrotrophs the only organism that use cellular respiration

no, so do plants

how are photosynthesis and cell resp related

they are opposites- products for one are the raw materials for the other

what is fermentation and how is it diff from cell resp

another way of getting energy. different that cell resp because it doesnt need oxygen which makes it less efficiant

what are the two types of fermentation

alchohol and lactic acid

3 functions of cell devision

allows organisms to grow, repair damaged structures, and reproduce

3 main stages of cell devision

interphase, mitosis, cytokinesis

what happens during each stage of cell devision

interphase- cell grows until size, copies DNA, produces more organelles

mitosis- nucleas splits, one set of DNA goes with one nuclei, four parts (pmat)

Cytokinesis- cytoplasm devides, 1 cell becomes 2

which stage of cell division does the nucleas split

mitosis

how does cytokenises differ in plant and animal cells

the plant cell has a wall which takes longer to split. and animal doesnt have a cell wall