1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Yakvenalex [24]
3 years ago
13

Which of the following statements is true for all types of passive transport? Group of answer choices Ions never cross the plasm

a membrane by passive transport. Only small polar molecules are able to cross the plasma membrane. The concentration gradient is the driving force. Proteins are needed to transport molecules across the membrane.
Biology
1 answer:
IgorLugansk [536]3 years ago
3 0

Answer:

The concentration gradient is the driving force.

Explanation:

Passive transport of substance occurs when they are moved from the region of their higher concentration to that of their lower concentration. The concentration gradient is the difference in the concentration of substances between two regions or across the membrane. The concentration gradient of substances drives their passive movement. The passive movement of substances does not use metabolic energy.  Simple diffusion and facilitated diffusion are two examples of this transport.

You might be interested in
What is the name given to lichen or algae after a primary succession
olga55 [171]

Answer: the pioneer species

Explanation:

3 0
3 years ago
Read 2 more answers
Polysome formation in bacteria is able to occur because _________________. A. they have a relatively small chromosome B. they la
german

Answer:

Option B) they lack a nuclear membrane

Polysome formation in bacteria is able to occur because they lack a nuclear membrane

Explanation:

Since bacteria, like other Prokaryotes, lack a well-defined nucleus and nuclear membrane, its ribosomes are held together by ribonucleic acid (RNA) during protein synthesis, and are altogether referred to as polysome.

6 0
3 years ago
Read 2 more answers
Where in a cell would transcription and translation of DNA occur?
SOVA2 [1]
Transcription takes place in the nucleus. Translation takes place at ribosomes, in the cytoplasm or attached to the ER.
3 0
3 years ago
Read 2 more answers
living matter is at least sixty percent water. it makes sense then cell membranes are made of phospholipids because
DaniilM [7]

It makes sense that cell membranes are made of phospholipids because water cant mix in with lipids, so the phospholipids will be able to effectively block out any unwanted water or chemicals suspended in water outside of the cell.

4 0
3 years ago
Read 2 more answers
1. A by-product produced in the muscles during exercise muscle fibers. __________.
muminat

Answer:

1. lactic acid, 2. varicose veins or spider veins, 3. posture, 4. muscle fibers, 5. range of motion, 6. muscle myofibrils

Explanation:

1. usually happens during anaerobic metabolism reactions, there is sufficient O₂ to decompose the glucose and glycogen formed during exercise.

2. these veins are common in older women and usually are formed as a result of standing for too long. The semi-lunar valves weaken in the leg, and therefore blood does not get caught in those valves but escapes downwards and then collects resulting in those thick or swollen looking veins, or it is hereditary.

3. this is the manner in which you keep your body and its muscles in place or basically how one 'carries their body.'

4. the human skeletal muscle is made of these muscle fibres which add density and support to the bones along with the veins and nerves

5. this is the specified amount of movement a body is able to do, each individual has a different range of motion, the older one gets, the less of a range there is present.

6. is kind of a 'monomer' for muscles, it is the 'basic unit' and is rod shaped. Each rod has thick and thin filaments within them.

5 0
3 years ago
Other questions:
  • The _____ is the process of forming new cells from the pre-existing cells
    11·1 answer
  • Which of the following is NOT a form of active transport?
    8·1 answer
  • Energy sources can impact the environment by causing acid rain, breathing problems, and killing organisms. Please select the bes
    10·1 answer
  • From where does soil come? What processes are used to form soil? Answer this in one paragraph.
    15·2 answers
  • Which sentence best explains how enzymes speed up a chemical reaction?
    15·2 answers
  • WHAT DO I NAME MY AMUSEMENT PARK HELP
    8·2 answers
  • Bacteria convert the nitrogen in the atmosphere into<br> a.Usable nitrogen<br> b.Non-usable nitrogen
    5·2 answers
  • Why do healthy people get stronger
    6·1 answer
  • Help please for biology
    13·1 answer
  • - If all of the seaweed in this ecosystem died off, which population would most likely be negatively affected
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!