hard questions Flashcards

1
Q

The organ that stores bile.

A

gallbadder

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2
Q

Physiological

A

adaptation affects body chemistry and metabolism?

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3
Q

role of pancreas

A

Provides additional enzymes(pancreatic juice) to help nutrients get absorbed by the small intestine.

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4
Q

Saliva contains this enzyme to start the digestive process

A

amylase

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5
Q

The acid in your stomach used for digestion.

A

hydrochloric

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6
Q

Bile is made by which digestive organ?

A

liver

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7
Q

Why do ruminants need multiple chambers within their stomach?

A

To process cellulose and fibre

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8
Q

What is the function of the caecum in a hindgut fermenter?

A

It holds food for fermentation by bacteria

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9
Q

Protein digestion begins in the

A

stomach

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10
Q

Where do substrates bind on an enzyme?

A

active site

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11
Q

What happens when enzymes are heated to a high temperature?

A

The shapes of the enzyme are altered or denatured

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12
Q

An enzyme speeds up a chemical reaction in the cell but can only be used once.

A

FALSE

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13
Q

epiglottis

A

A flap of tissue that seals off the windpipe and prevents food from entering.

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14
Q

What do the villi do?

A

Absorbs nutrients from food so the body has energy.

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15
Q

peristalsis

A

Muscle contraction that keep food moving alone in one direction through the digestive system.

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16
Q

The molecule an enzyme is working on is called thE

A

Substrate

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17
Q

2 functions Proteins

A
  1. ) They act like gatekeepers, only let certain things in.

2. ) Enzyme receptors embedded in the membrane.

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18
Q

Endocytosis

A

A general term for the various types of active transport that move particles into a cell by enclosing them in a vesicle made out of plasma membrane.

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19
Q

What is NOT TRUE about the cell membrane?

A

Contains digestive enzymes

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20
Q

Exocytosis

A

A form of bulk transport in which materials are transported from the inside to the outside of the cell in membrane-bound vesicles that fuse with the plasma membrane.

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21
Q

WHAT allow cells to recognise each other and act like ID tags.

A

Carbohydrates

22
Q

How does carbon dioxide get into the leaves of a plant?

A

It enters through the stomata

23
Q

The thylakoids in a chloroplast are formed in stacks called:

24
Q

Which organisms perform Photosynthesis?

A

Only Autotrophs

25
Photosynthesis occurs in how many stages?
2
26
Keystone species
In a ecosystem, animals that are largely dependent and if removed the ecosystem would change drastically.
27
Trophic cascade
Predators limit the density of behaviour of their prey and thereby, enhancing the survival of the next lower trophic level.
28
Humans Keystone species ?
DONT maintain balance, destory or change balance. Sheet and iron would rust, affect more manmade things than animals itself.
29
Factors of cm
- Fexible/fluid - Self-repair - Bound organelles - Binay fission
30
In aerobic celluar respiration, what are the three major steps?
- Glycolysis (in cytoplasm no oxygen required) -Kerbs Cycle Electron Transport Chain
31
Why does respiration rate increase during exercise?
Tend to breathe fast, so our muscles requires more energy and need more oxygen to make ATP. Therefp\ore we are increading our oxygen consumption.
32
Digestion is
catabolic - release energy (digestive)
33
Enzymes
Ezymes: the thing substrance:going it Product: the product
34
Anabolic
adding to make a product
35
Denaturing
Outside tolerant zone, it stops working. Enzymes can be denatures, so it melts-->hot water CANT ;LOCK INTO SUBSTRANT
36
TYPE OF DIGESTIVE
``` CARNIVORE: stomach is bigger smaller foregut herbivore short colon medium caecum ``` HERVIBORE: small stomach short small intensine very LONG COLON (NEED someonething to break down plant matter- LARGEEEEEEEE nEEDS CAECUMMMMMM) omnivore: long colon medium. short intensine
37
digestive enzyme compare to stomach enzyme have diff tolerant
STOMACH IS SUPER ACIDIC
38
WHAT DO WE REPLY ON
GUT BACTERIA
39
VILLI
greatly increasing the surface area for food absorption and adding digestive secretions.
40
three stages of cellular respiration
- GLYCOLSIS (CYTOPLAMS- no oxygen - KERBS CYCLE (MITOCHONRIDA) -oxygen - ELECTRAL TRANSPORT CHAIN (MITOCHONDRIA) -oxygen
41
``` King phillp Came Over For good sex ```
``` Kingdom Phylum cLASS ORDER FAMILY GENUS SPECIES ```
42
main kingdoms
Plantae Animalia Fungi, Protists Bacteria/Monera
43
Genus | Species
Genus : Homo. Homo. Homo. Homo | Species : Sapien Nearderthal Erectus
44
naming Genus Species
Genus capitialised | Species lower case
45
Monogastric:
high in energy | low in fibre
46
Avian:
Crop-proventriculus-gizzard ( function like teeth)-cloaca
47
Ruminant
Reti-Oma-Abo-Rumen Mirco High in fibre Low in energy Regurtinating (cud) microorganism and ruminant: they are mualistic _ help each other.
48
compare pseudo and ruminants
both eat alot of rougage and rely on microbones | 1 STOMACH, use cecum for digestion the pseduo (horse etc)
49
hyper
placed in high concentrated solute. water move by osmosis goes from red blood cell to the hypertonic solution causing cell to shink.
50
hypo
placed in low concentrated solute. water move by osmosis goes into red blood cell from the hypo solution causing cell to swell and burst- from high to low concentration.