Science Mid Term Questions Flashcards
Place these in order from most simple to most complex: cell, organism, tissues, organs, organ system
Cell, tissues, organs, organ system, organism
Why is the cell membrane called selectively permeable?
It has some substances that can cross the membrane while others cannot
What organelle is responsible for cellular respiration?
Lungs
What happens during photosynthesis?
Plants and some other organisms absorb energy from the sun and use the energy to convert carbon dioxide and water into sugars and oxygen
Imagine a Punnett square where W = white flowers, w = purple flowers, parent 1 has alleles Ww and parent 2 has alleles Ww. Give the probability that the offspring will have purple flowers.
It has a 50 percent chance of having purple flowers and a 50 percent chance of having white flowers.
Which structures are found in plant cells but not animal cells?
Cell wall, and Chloroplasts
What is a hybrid?
Organism that has two different alleles for a trait
Genetic code is determined by them blank of nitrogen bases along a gene.
Sizes
Define Homeostasis.
The condition in which an organism’s internal environment is kept stable
Describe the false idea of spontaneous generation.
The mistaken idea that living things arise from nonliving sources
What is the difference between genotype and phenotype?
A genotype determines its genetic makeup or alleles. Phenotype determines its physical appearance or visible traits
Of the two energy-releasing processes blank requires oxygen and blank does not require oxygen.
Lactic Acid and Alcoholic.
What is the ultimate source of energy for Earth’s ecosystems?
The sun
What are the 2 products of photosynthesis?
Oxygen and sugar
Define heredity:
The passing of traits from parents to offspring
Which group of organic compounds include fats, oils, and waxes?
Carbohydrates
How does a branching tree diagram model evolutionary relationships among organisms?
It groups organisms according to shared derived characteristics
An organism’s scientific name is made of 2 parts, what are those 2 parts?
Genes and species
If a cell contains mitochondria, you can assume that the process of blank happens in the cell.
Cellular Respiration
Gregor Mendel experimented with pea plants during the 1860s. Explain the historical significance of his work and how his work continues to contribute to the science of genetics
It unlocked the key to understanding heredity. It showed how the passing of physical characteristics from parents to offspring. He decoded the patterns in the way characteristics pass from one generation to the next.
