subject
Biology, 03.06.2021 02:20 manuellopez1981

The diagram shows the movement of ions against a concentration gradient to an area of higher concentration. Which molecule provides the energy needed for this movement to occur in a cell? * ATP
mRNA
protein
lipid


The diagram shows the movement of ions against a concentration gradient to an area of higher concen

ansver
Answers: 2

Other questions on the subject: Biology

image
Biology, 22.06.2019 11:20, gamallopatty
Archeologists have discovered three sites showing conclusive evidence for the mastery of fire in tanzania, from a period slightly after the time that homo habilis was present in africa. these sites clearly were founded by homo erectus, the descendent species of homo habilis that migrated north, out of africa and into asia. homo erectus was known to have mastered fire, from ample evidence at sites in asia. there is no reason to attribute mastery of fire to homo ergaster, the descendent species of homo habilis that remained in africa. which of the following is an assumption on which the argument depends? (a) before their migration, homo erectus occupied african territory as far south as tanzania.(b) the strain of migration provided the selective pressure motivating homo erectus‘ mastery of fire.(c) homo ergaster would not have derived as much benefit from the mastery of fire as did homo erectus.(d) homo ergaster inherited all cultural knowledge from homo habilis, a species that did not have mastery of fire.(e) homo ergaster did not occupy regions as far south as tanzania until well after the time of these three sites.
Answers: 2
image
Biology, 22.06.2019 11:30, kmchippps
According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes
Answers: 3
image
Biology, 22.06.2019 14:00, fizz49
Some substances but not other can cross the (blank) membrane of a cell
Answers: 2
image
Biology, 22.06.2019 21:30, destinysmithds7790
Which of the following is true about the introduction of a non-native species to an environment? (a) they usually adapt quickly so they can have a positive affect on the environment. (b) they can disrupt the environment and cause much damage and devastation to native species. (c) they usually become predators in a food chain and to keep prey populations under control. (d) because the native species are better-adapted to the environment, the non-native species always end up dying out.
Answers: 1
You know the right answer?
The diagram shows the movement of ions against a concentration gradient to an area of higher concent...

Questions in other subjects:

Konu
Mathematics, 04.11.2020 23:30