Why does active transport require energy to move molecules of a substance across a cell membrane?

Answers

Answer 1

Answer:

Active transport requires energy to move molecules across a cell membrane because it goes against the natural concentration gradient

What is active transport?

Because active transport works against the natural concentration gradient, which moves molecules from a region of lower concentration to a region of higher concentration, it requires energy to move molecules across a cell membrane.

To transfer molecules down their concentration gradient (from high to low concentration), passive transport methods like diffusion and assisted diffusion, which don't require energy, are in contrast.

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Answer 2

Answer:

Answer:

Active transport requires energy because it is not a passive process. The molecule has to go against the concentration gradient. Hence it requires energy to be carried by the carrier proteins.

The energy is used is ATP, which comes from respiration

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The first organisms on Earth were mostly likely ________ cells.prokaryotic
Or
eukaryotic?

Answers

Answer: Prokaryotic. Because their unicellular.

Answer:

Prokaryote

Explanation:

Water and minerals move in which direction within the plant?

Answers

Upward direction.

Hope this helps.

It would be upwards. The Xylem are what carry water and nutrients in the plant and they travel upwards.

Food webs diagram the complex relationships of energy flow in an ecosystem containing a variety of producers and consumers. A diagram is provided. Which of the following correctly shows one path that energy would flow through this ecosystem?A. A Star grass → termite→ wildebeest→ aardvark
B. B Hyena → aardvark → impala → harvester ant
C. C Grasshopper → termite→ warthog → hare
D. D Red oat grass → termite → wildebeest → lion

Answers

In food web, Grasshopper → termite→ warthog → hare correctly shows one path that energy would flow through this ecosystem.

What do you mean by food web?

A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community. Another name for food web is consumer-resource system.

Primary consumers, mostly herbivores, exist at the next level, and secondary and tertiary consumers, omnivores and carnivores, follow. At the top of the system are the apex predators: animals who have no predators other than humans.

Food web is an important conceptual tool for illustrating the feeding relationships among species within a community, revealing species interactions and community structure, and understanding the dynamics of energy transfer in an ecosystem.

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Hi! Hola! Aloha!

The answer would be D. Red oat grass > termite > wildebeest > lion

Hope this helps !

The frog’s tongue is anchored in the very front. Why is it anchored this way?

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Frogs, unlike humans, have tongues that are anchored at the front of their mouths because when they catch an insect it throws its tongue out of its mouth and and wraps it around the insect and then brings it back to their mouth for consumption.

Sonar technology is based on the echo-ranging behavior of : A. Sea lions B. Bats C. Moths D.seals

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Sonar technology is based on the echo ranging behavior of Bats.

B. bats
Bats use Sonar technology in almost everything from finding food to flying back to their caves.

The ______ biome is the largest on Earth, characterized by low temperatures, thin, young soil, and limited plant species.A)desert
B)taiga
C)deciduous forest
D)tropical rain forest

Answers

The coniferous forest biome is south of the Arctic tundra. It stretches from Alaska straight across North America to the Atlantic Ocean and across Eurasia. The largest stretch of coniferous forest in the world, circling the earth in the Northern Hemisphere, is called the “taiga. And the answer is B. Taiga

Answer:

Explanation:

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