7th Grade Science Midterm Flashcards
studying
Where does photosynthesis happen?
In chloroplasts that are found in a plant’s leaves
Who does photosynthesis?
Plants
What happens during photosynthesis? (The ins and outs?)
Plants take in carbon dioxide and water from the air and soil. Within the plant cell, the water is oxidized, while the carbon dioxide is reduced. This transforms the water into oxygen and the carbon dioxide into glucose.
Where does cellular respiration happen?
In the cytoplasm and mitochondria of each cell of the body
Who does cellular respiration?
All cells do cellular respiration
What happens during cellular respiration? (The ins and outs?)
A glucose molecule is gradually broken down into carbon dioxide and water
What is the difference between prokaryote and eukaryote cells?
Prokaryotes are cells that lack a nucleus and membrane-bound organelles. They have a more simple structure and include bacteria and archaea. Eukaryotic cells, however, do have a nucleus and membrane-bound organelles. The purpose of organelles in eukaryotes is to organize and compartmentalize cellular functions.
What is the difference between plant and animal cells?
Plant cells have a cell wall in addition to a cell membrane, whereas animal cells have only a cell membrane
What does the structure of organelles look like?
Think of it as a cell’s internal organ
What is the function of organelles?
They store genetic information
What is meiosis?
A type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes (sexual)
What is mitosis?
A type of cell division that replicates its chromosomes and then segregates them, producing two identical nuclei in preparation for cell division (asexual)
What is the order of taxonomy? (the classification of livings things levels)
Biggest—> domain, kingdom, phylum, class, order, family, genus, species <—Smallest
What are animal adaptations?
They are unique characteristics that allow animals to survive in their environment
What are the types of animal symmetry? Explain what they look like.
Spherical (shaped like a sphere), radial (can be divided into two matching halves by many different lines), biradial (can be divided up into equal parts, but only in two planes), and bilateral (can be divided up into equal parts, but only in two planes).
Explain what sponges are.
multicellular organisms consisting of jelly-like mesohyl sandwiched between two thin layers of cells, and usually have tube-like bodies full of pores and channels that allow water to circulate through them.
Explain what worms are.
bilateral animals that typically have a long cylindrical tube-like body, no limbs, and usually no eyes.
Explain what mollusks are.
invertebrates which include snails, slugs, mussels, and octopuses. They have a soft unsegmented body and live in aquatic or damp habitats, and most kinds have an external calcareous shell.
Explain what arthropods are.
an invertebrate animal of the large phylum Arthropoda, such as an insect, spider, or crustacean.
Explain what echinoderms are.
a marine invertebrate of the phylum Echinodermata, such as a starfish, sea urchin, or sea cucumber.
