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levacccp [35]
3 years ago
10

Give three functions of the cell surface membrane. (plasma membrane)

Biology
1 answer:
ad-work [718]3 years ago
4 0

I can help with one but not 3... The Cell membrane can be used to help protect the inner parts of the cell such as the, mitochondria, cytoplasm, endoplasmic reticulum. (List more).

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Eukaryotic cells that are destined to divide progress through G1, S, G2, and M phases, which are collectively known as the
julia-pushkina [17]

didnt understand the question, but the answer i think would be

The eukariotic cell cycle

3 0
2 years ago
Wich organ system of plant function as an anchor and as a asorbiaration and storgae unit
GrogVix [38]
The root system, the roots can store energy, anchor the plant to the ground and other surfaces, and they also adsorb and "drink" nutrients and vitamins from the soil. Remember to check yourself.
Hope this helps :)
5 0
3 years ago
True or false? the driving force for the unloading of oxygen from hemoglobin into tissues is the difference in pco2 levels betwe
mrs_skeptik [129]

Answer:

False. The driving for is the partial pressure gradient of O2 (PO2 difference), not the PCO2 gradient.

However, keep in mind that an increase in PCO2 can facilitate the unbinding of oxygen from hemoglobin. This is due to a decrease in pH associated with PCO2 increase. The H+ ions bind to hemoglobin and decrease it's affinity for oxygen, this is called the bohr effect. But the PCO2 is not the main driving force of oxygen unbinding.

3 0
2 years ago
Cycads are considered endangered species and their trade is severely restricted. Customs officials stop suspected smugglers, who
nydimaria [60]
<h2>Cycads and Palm</h2>

Explanation:

The resemblance between cycads and palm trees is only superficial

  • Cycads are basically woody plants which have roots, a stem, leaves and reproductive structures known as cones
  • The main roots of cycads are thickened and fleshy and as they may have storage capacities they are often termed tuberous
  • Along with the fleshy stem they may have contractile properties which serve to regulate the level of the stem in the ground
  • Specialized, upright-growing, branched roots, known as coralloid roots, are also produced by all species of Cycads
  • The stems of cycads may be completely subterranean or emerge from the ground and be trunk-like
  • The leaves of most cycads are once-divided (pinnate) and often develop an attractive palm-like crown
  • Palm trees are a type of evergreen plant belonging to the Arecaceae family of plants
  • Palm trees have branch-less stems and large evergreen leaves
  • Generally, leaves of palm trees are either pinnate (feather-like leaves) or palmate (fan-like fronds)
  • Another way to identify the type of palm tree is by the trunk shape, some of the tallest species of palm trees have long slender single trunks and dwarf varieties have usually short fat palm trunks
  • Some smaller palm tree species may have clustered trunks with 3 or 4 short trunks growing together
  • There are also some dwarf palm trees that just have bushy pinnate fronds growing out the ground and don’t have any trunk at all

 

8 0
3 years ago
Nutrients dissolved in water are carried to upper parts of plants by tiny tubes partlybecause of the capillary effect. determine
umka21 [38]
The formula for the capillary rise is

h = 2λcosθ/ρgR
where
λ = 0.0728 N/m (surface tension of water)
θ = 15°
ρ = 1000 kg/m³ (density of water)
g = 9.81 m/s²
R = (0.0026 mm/2)(1m/1000 mm) = 1.3×10⁻⁶ m

h = 2(0.0728 N/m)cos15°/(1000 kg/m³)(9.81 m/s²)(1.3×10⁻⁶ m)
<em>h = 11.03 m</em>
4 0
3 years ago
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