Unit 1 test and stuff pls save me or I'ma die rn ): Flashcards

Question

Metabolism

Answer 1

The process that changes food into energy

Answer 2

The process of a cell replicating itself

Answer 3

Chemical breakdowns when water molecules are added. This is further initiated by enzymes

Answer 4

When earth was first formed, it was very hostile. It was super hot. While it was bombarded by meteors. - did not contain much oxygen - Had water vapor -

Answer 5

which proposes that life on Earth originated in a warm, shallow ocean where simple organic molecules, like amino acids, accumulated from the atmosphere and combined to form the building blocks of life, essentially creating a "soup" from which early life forms could emerge The model which proposes that gasses in the early atmospheres of earth created organic molecules when exposed to energy sources from lightning.

Answer 6

A cell Replication

Answer 7

Molecules that are carbon based which bond to hydrogens

Answer 8

An experiment that tried to create early Earth by creating a atmosphere with gasses they thought were present. They it over liquid. Used sparks of electricity to mimic lightning RESULT: 15% of carbon from methane formed into carbon compounds. Organic compounds like amino acids formed

Answer 9

Organic Molecules could have arrived from outer space. Meteors brought organic molecules to earth. It could have also formed in deep sea vents

Answer 10

Prokaryotic Cells or protcells. Droplets that contained membranes. (Kinda like bubbles)

Answer 11

RNA was the first genetic material RNA acts like a catalysis through ribozymes. Allows for replication Rna can store genetic information Was able to mutate frequently thus forming many traits or functions which DNA later stored. Eventually they evolved and formed many functions because it frequently mutates. Eventually DNA came along and due to it being more stable.

Answer 12

Suggests that life did not begin with the formation of RNA. instead it claims that some forms of metabolism mustve come first before macromolecules. Basically it suggests that living systems were simple metabolic networks, which provided the energy and materials to give the rise to more complex structures.

Answer 13

Explains how prokaryotes evolved into eukaryotes. The theory layout: Many prokaryotes had a lot of different functions. Some could carry make their own food using sunlight, others were larger and could consume other bacteria. However instead of the bacteria getting digested, they remained intact forming a symbiotic relationship. Overtime the bacteria digested would merge with the bigger cells, which is how the mitochondria and chloroplast formed.

Answer 14

Sat: Solid at room temp All carbon atoms are bonded to hydrogen atoms Mostly animal products can raise cholesterol levels un: liquid at room tem Has a double bond between carbon atoms Healthier

Answer 15

Nitrogen bonded to two hydrogen

Answer 16

Phosphate attached to carbon skeleton

Answer 17

DNA: Double stranded deoxyribose stores information uses thymine stable Both: Has sugar and phosphate backbone uses AGC RNA: single strand Ribose uses uracil does not usually last long unstable, mutates often

Answer 18

Carbon has the unique ability to form four covalent bonds, which is known as tetra-valence. The goal for all atoms is to be stable, and carbon is a stable element that readily bonds with a variety of other elements.

Unit 1 test and stuff pls save me or I'ma die rn ): Flashcards

(42 cards)